Pulmonary Hypertension Fellowship

What Is a Pulmonary Hypertension Fellowship?

Pulmonary hypertension (PH) fellowship is a post-subspecialty advanced training year—or two—designed to build concentrated expertise in the diagnosis, hemodynamic evaluation, and medical management of pulmonary arterial hypertension and related WHO group disorders. It is not an entry-level fellowship. You apply after completing a primary subspecialty training program, not during it.

The field sits at the intersection of cardiology and pulmonary medicine, which shapes everything about how programs are structured, who runs them, and where graduates land. Most dedicated PH fellowships are housed at large academic referral centers that carry Pulmonary Hypertension Association (PHA) Accredited Center designation, and they function as institutional advanced fellowships—meaning they exist and operate entirely outside the ACGME system. Understanding that distinction before you invest application energy is not a technicality; it changes the timeline, the application mechanics, and what your credential actually says when you finish.

This page covers the practical structure of these programs, how to find and approach them, and what the training is realistically worth in career terms.

Accreditation Status

There is currently no ACGME accreditation pathway specific to pulmonary hypertension fellowship. ACGME accredits subspecialty training in pulmonary disease and critical care medicine, adult cardiology, and advanced heart failure and transplant cardiology, among others—but no standalone PH fellowship track exists within that system.

What does exist is a distributed landscape of institutional advanced fellowships. These are created, funded, and governed at the program level, with no uniform national curriculum standard, no common accreditation body, and no central oversight of training outcomes. Some are associated with PHA Accredited Centers; some carry affiliation with the American Heart Association (AHA) or the American College of Chest Physicians (CHEST); some are purely internal arrangements with a single prominent faculty member running the show. The quality variation that follows from this structure is real, and evaluating individual programs carefully matters more here than in ACGME-accredited training, where minimum standards are externally enforced.

A PHA Center of Comprehensive Care or Regional designation signals institutional volume and multidisciplinary infrastructure, but it does not certify the fellowship training program per se. Treat it as a useful filter, not a guarantee of educational quality.

Prerequisites and Eligibility

Because there is no central accreditation body setting eligibility rules, requirements vary by program. The following reflects the near-universal floor observed across established programs:

• Primary specialty training: Completion of, or current enrollment in the final year of, an ACGME-accredited fellowship in adult cardiology (3 years post-IM) or pulmonary and critical care medicine (3 years post-IM). Some programs also consider applicants from pulmonary-only fellowships or adult cardiology subspecialty tracks such as advanced heart failure and transplant cardiology.
• Board eligibility or certification: Most programs expect you to be board-eligible or board-certified in your primary subspecialty before the PH fellowship begins. A few will accept final-year fellows contingent on sitting boards.
• Clinical exposure to PH patients: Programs consistently weight prior clinical contact with PH—even informal rotations—because it signals genuine interest rather than a hedged application.
• Research foundation: Particularly at research-intensive programs, a prior publication record or a clearly articulated research project is effectively required. See the Research section below.

Internal medicine residency alone, without subspecialty fellowship, does not position a candidate competitively. This is advanced subspecialty training, and the clinical procedures central to PH (right heart catheterization, vasoreactivity testing, hemodynamic assessment) require a procedural and physiologic foundation that subspecialty fellowship provides.

Program Length and Structure

Most dedicated PH fellowships run one year. A smaller number offer two-year tracks, typically when the second year is structured around a protected research appointment—often NIH T32-funded or foundation-supported—rather than continued clinical training.

Within a one-year program, clinical rotations typically include:

• Right heart catheterization and hemodynamic laboratory: The procedural core. Fellows develop independent competency in right heart catheterization, pulmonary vasoreactivity testing, and interpretation of hemodynamic profiles across WHO groups.
• Advanced echocardiography: Focused on RV function assessment, estimated pulmonary pressures, and serial monitoring of treatment response—not a general echo rotation.
• Advanced PH therapies clinic: Initiation and titration of endothelin receptor antagonists, phosphodiesterase-5 inhibitors, soluble guanylate cyclase stimulators, and parenteral prostacyclins. Parenteral prostacyclin management is a differentiating skill that generalist cardiology and pulmonary training often does not provide in depth.
• Lung transplant evaluation: Most PHA Accredited Centers perform transplant evaluation; fellows participate in the multidisciplinary selection and listing process.
• Multidisciplinary team conferences: PH management at volume centers is structured around regular case conferences involving cardiology, pulmonology, rheumatology, hematology, and pharmacy. Fellows are expected to present and lead.
• Research time: Even in primarily clinical programs, some protected research or scholarly activity time is standard. The proportion varies widely—from a few hours per week to a full half-day blocked.

Two-year programs typically front-load clinical training in year one and transition to mentored research in year two, often with an expectation of a manuscript submitted or in revision by the end of training.

Core Clinical Competencies

The specific skills a PH fellowship is designed to develop—skills not reliably acquired in standard cardiology or pulmonary training—include:

• WHO group classification: Systematic workup to distinguish PAH (group 1) from PH due to left heart disease (group 2), lung disease/hypoxia (group 3), CTEPH (group 4), and unclear or multifactorial mechanisms (group 5). The clinical and hemodynamic overlap between groups has direct therapeutic implications, and misclassification drives inappropriate treatment.
• Hemodynamic assessment: Acquisition and interpretation of right heart catheterization data—mean PAP, PCWP, PVR, cardiac output by Fick and thermodilution, transpulmonary gradient, diastolic pressure gradient. Understanding artifact, positional effects, and respiratory variation in tracings.
• Vasoreactivity testing: Administration of short-acting vasodilators (inhaled nitric oxide, inhaled iloprost, IV adenosine, IV epoprostenol) during right heart catheterization; applying current criteria for a positive vasoreactivity response; understanding which patients are candidates for calcium channel blocker therapy.
• Advanced therapy initiation and titration: Practical management of parenteral epoprostenol and treprostinil, including pump systems, dose escalation, and management of infusion-related complications. This is the highest-stakes procedural competency in outpatient PH care.
• Risk stratification: Application of validated multidimensional risk tools (REVEAL, ESC/ERS low-intermediate-high risk schema) to guide therapy escalation and transplant referral timing.
• Transplant evaluation participation: Understanding listing criteria, organ allocation considerations, and the role of PH therapy as bridge-to-transplant.

How to Find Programs

There is no central match, no common application service, and no comprehensive public registry of PH fellowship programs. Finding programs requires active reconnaissance.

• PHA Accredited Centers list: The Pulmonary Hypertension Association maintains a directory of accredited centers on its website (phassociation.org). These institutions have met PHA volume and infrastructure criteria. Not every accredited center runs a fellowship, but this list is the most efficient starting point for identifying institutions with the patient volume and faculty to support real training.
• Cardiology and pulmonary society directories: AHA-affiliated advanced heart failure centers and CHEST-member institutions with established PH programs are a secondary filter. Attendees presenting PH research at AHA Scientific Sessions, CHEST Annual Meeting, and the PHA International Conference often represent programs actively producing fellows.
• Direct faculty contact: Because programs are institutionally structured, the practical mechanism is identifying faculty members who publish in PH, contacting them directly, and asking whether their institution offers or is developing a fellowship. This is normal and expected; program directors in this space are not gatekept behind application portals.
• Fellowship training section of the PHA website: PHA has historically maintained resources for trainees interested in the field; check the current state of that section directly, as offerings change.
• Your own mentors: Senior cardiologists and pulmonologists with PH experience are often connected to PH center networks. A warm introduction from a mentor carries meaningful weight in a small subspecialty where program directors frequently know each other.

Application Timeline and Process

Because there is no ACGME match or common application system for PH fellowships, the timeline is entirely program-driven—and programs vary considerably. The following reflects the practical reality of how competitive programs fill positions:

• Begin outreach 12–18 months before your intended start date. This is not an abundance of caution; it reflects that many programs have one or two positions and fill them through direct relationships. Waiting until 6 months out is how candidates discover positions are already committed informally.
• Initial contact: Email the program director or section chief directly. Introduce your training background, subspecialty, intended graduation date, and a sentence on your research interest. Attach a current CV. Do not send a full application packet unsolicited; ask whether they are recruiting and what their process looks like.
• Application materials typically requested: CV, personal statement, three to four letters of recommendation, medical school transcript and USMLE scores (some programs), and a research statement or writing sample if the program is research-intensive.
• Interview format: Most programs conduct in-person visits, which serve as mutual evaluations—you are assessing faculty mentorship, case volume, and lab access as much as they are assessing you. Virtual initial screening is increasingly common. Come prepared to discuss specific cases and specific research questions, not general enthusiasm for the field.
• Offers: Made directly by program directors, outside any match process. Turnaround between interview and offer can be rapid. Verbal offers should be followed up in writing; clarify funding source, start date, and benefits before accepting.

Letters of Recommendation and Personal Statement

Letters: Three to four letters is the typical range. The most effective letters come from:

• A senior cardiologist or pulmonologist with direct knowledge of your clinical competency and judgment in complex patients—ideally someone who has observed you managing or presenting PH cases.
• A research mentor who can speak concretely to your productivity, intellectual approach, and capacity to drive a project independently.
• A program director or division chief from your current fellowship who can contextualize your standing among trainees.

A letter that says you are a "dedicated and compassionate physician" without specifics will not differentiate you. Letters that describe a specific patient problem you handled well, a specific research question you pursued, or a specific instance of independent thinking carry weight. Give your letter writers enough lead time and enough context—share your personal statement draft, your CV, and a paragraph on why you are applying to PH specifically.

Personal statement: PH is a small field with a distinctive patient population—often young patients with progressive, life-limiting disease requiring complex ongoing management. Programs want to understand why you want to practice in that environment specifically, not in cardiology or pulmonology generally. Your statement should address:

• The clinical experience or case that concretely oriented you toward PH (specific is more credible than abstract).
• Your research interest and how it connects to the program's faculty or ongoing work—do the homework to make this specific to each program.
• Your career trajectory: academic center, translational research, clinical trials, or another defined direction. "I want to be a PH specialist" is a starting point, not an answer.

Length conventions vary; one to two focused pages is standard. Cut anything that does not advance one of those three objectives.

Research and Scholarly Activity

PH fellowship is substantially more research-intensive than most advanced clinical fellowships in general cardiology or pulmonary medicine. This is partly because the field is moving quickly—new therapeutic targets, evolving classification criteria, growing registry data—and partly because the programs training fellows are the same programs generating the evidence base for the field.

Realistic expectations by program type:

• Primarily clinical programs: One or two case reports or brief communications during the year; participation in a multicenter registry; presentation at PHA or CHEST. Manuscript submission is expected but may not be completed during the fellowship year itself.
• Research-intensive programs (especially two-year tracks): An original research project with defined aims, IRB approval secured early in fellowship, data collection and analysis completed in year one or two, manuscript submitted before or shortly after completion. Presentations at AHA Scientific Sessions or the PHA International Conference expected.

If you are applying without prior research experience, address this directly in your personal statement. Frame any scholarly activity you have done—quality improvement projects, case series, invited talks—accurately and without inflation. Programs that require a research background will not be persuaded by reframing a QI project as translational science; programs that weight clinical training over research may not penalize a thin publication record if your clinical skills and patient-facing motivation are clearly documented.

Prior bench or clinical research should be presented in your CV with full citation information, including your specific role in each project. "Co-author on a study of..." without specifying your contribution is less useful than "collected and analyzed hemodynamic data for a retrospective cohort of 80 patients with group 1 PAH."

Career Outcomes and Practice Settings

PH fellowship is a narrow training path that leads to a relatively small set of well-defined roles. This is worth being direct about: dedicated PH fellowship is not a general career hedge. It narrows your practice focus substantially and is most appropriate if you intend to practice at an institution with PH center infrastructure.

Realistic post-fellowship trajectories include:

• Academic PH center faculty: The most common destination. Typically joint appointment in cardiology or pulmonary medicine, with a practice anchored in a multidisciplinary PH clinic. Academic rank and protected research time vary by institution and by your research productivity coming out of fellowship.
• Advanced heart failure and transplant programs: PH expertise is directly relevant to transplant center practice. Cardiologists with PH fellowship training who also hold advanced heart failure board certification (or who trained in advanced heart failure and transplant cardiology) are well-positioned for these roles.
• Clinical trials and industry: Pharmaceutical and device companies developing PH therapeutics recruit from this fellowship pool—regulatory affairs, medical affairs, clinical development, and principal investigator roles. This pathway is more common than it is acknowledged to be; if it is a realistic interest, identify it early and build relevant skills (protocol design, biostatistics literacy, regulatory framework knowledge) during fellowship.
• Regional expert consultation: Some graduates take positions at larger community or regional academic medical centers without dedicated PH programs, serving as the local expert and referring complex cases to higher-volume centers. This is a viable practice model but requires honest assessment of whether the patient volume at a given institution is sufficient to maintain procedural and clinical currency.

The academic job market for PH specialists is real but narrow. A fellow graduating from a well-regarded program with a defined research focus and a publication record is competitive for faculty positions at PH centers. A fellow with a primarily clinical year and no research output is competitive for a smaller set of roles. Neither outcome is a failure—but they require different post-fellowship strategies, and it is worth thinking about this before you choose a program, not after.

Salary and Funding During Fellowship

Because these are institutional rather than ACGME-accredited fellowships, stipend levels are set locally and vary considerably. For current stipend figures, see our data pages rather than any figure here, which would be out of date before it is read.

General structural observations that are stable:

• Stipends for advanced institutional fellowships typically align with the institution's PGY-7 or PGY-8 pay scale, since most fellows entering PH training are in their seventh or eighth year post-medical school. Whether a given institution actually uses that scale, or sets an independent advanced fellow rate, depends entirely on local policy.
• Benefits—health insurance, malpractice coverage, CME allowance—should be explicitly confirmed before accepting an offer. They are not standardized in the way ACGME-accredited positions are.
• NIH T32 training grants: Some programs have NIH-funded T32 slots that cover stipend and provide indirect support for research activities. T32 positions often come with specific requirements around research time commitment and NIH citizenship/permanent residency eligibility criteria. Verify current T32 eligibility rules directly with the program and with NIH guidance for your application year.
• Foundation and society grants: The PHA, American Thoracic Society, and American Heart Association offer career development and trainee research awards relevant to PH fellows. These are competitive and typically require a mentor and a research plan. Applying for external funding during fellowship is a meaningful differentiator for subsequent academic job applications.
• Industry-sponsored fellowships: Some programs have historically received pharmaceutical support for fellowship positions. The nature, transparency, and institutional management of that funding varies. Ask directly how the position is funded and what, if any, obligations accompany industry support.

Boards, Certification, and Continuing Education

There is currently no standalone board certification in pulmonary hypertension. Completing a PH fellowship does not confer a new board credential. Graduates hold and maintain their primary subspecialty board certification—cardiology, pulmonary disease, or pulmonary and critical care medicine—through those respective boards.

This is not likely to change in the near term. The field is too small, and the training pathway too heterogeneous, to support the exam development infrastructure and candidate volume that a new ABIM exam would require.

What does exist in terms of formal recognition:

• PHA Accredited Center affiliation: Working at a PHA Accredited Center signals institutional credentialing and volume standards, but it is an institutional designation, not an individual one.
• Added Qualifications in Advanced Heart Failure and Transplant Cardiology: For cardiologists, this ABIM certification is the closest adjacent credential and is relevant to a PH practice that includes transplant evaluation. It requires separate qualifying examination and is not awarded for PH training alone.

Key continuing education venues for practicing PH specialists:

• PHA International Conference: The field's primary dedicated scientific meeting. Essential for staying current on trial results, registry data, and evolving classification.
• AHA Scientific Sessions: Relevant for cardiologists; PH trial data and RV function research are regularly featured.
• CHEST Annual Meeting: Primary venue for pulmonologists; PH management, CTEPH, and group 3 PH are consistent program topics.
• American Thoracic Society International Conference: Strong pulmonary vascular content, particularly basic and translational science.

Frequently Asked Questions

Can I apply from pulmonary/critical care fellowship?

Yes. Many PH fellowship programs specifically recruit pulmonologists, and the pulmonary and critical care pathway is one of the two main entry routes. Your competency with ventilator management, hypoxic respiratory failure, and group 3 PH pathophysiology is directly relevant. The procedural gap—right heart catheterization—is one you should address by ensuring your pulmonary fellowship includes right heart cath training, or by being transparent about your exposure level and your plan to build that skill during PH fellowship.

Is there a match for PH fellowship?

No. There is no NRMP match, no SF Match process, and no common application portal for dedicated PH fellowships. Positions are filled through direct contact with program directors, informal networks, and institutional processes that vary by site. This means earlier outreach is more important, not less, compared to ACGME-matched subspecialties.

Are there international PH fellowship programs?

Dedicated PH fellowship programs exist at major PH centers in Europe, the UK, Canada, and Australia, among others. The structure, funding, and credential implications differ by country and institution. If you are an international applicant seeking training outside the US, or a US-trained physician considering international experience, contact individual centers directly. PH is a genuinely international field—the major registries, classification criteria, and clinical guidelines are developed through multinational collaboration—and international training experience is viewed positively in most academic settings. Credential recognition and visa considerations require direct inquiry with the relevant institutions and authorities for your specific situation.

What does PHA Accredited Center designation actually mean?

The Pulmonary Hypertension Association's center accreditation program evaluates institutions against defined criteria for patient volume, multidisciplinary team composition, diagnostic capabilities (including right heart catheterization), and access to advanced therapies. Centers are designated at different tiers (Comprehensive Care Center, Regional Clinical Program, and related categories—check the current PHA designation structure, as it has evolved). The designation is a reasonable proxy for the institutional infrastructure needed to support serious PH training, but it does not evaluate the fellowship program itself. Two PHA-accredited centers can offer very different training experiences depending on faculty mentorship, research resources, and case complexity.

Do I need research experience before applying?

It depends on the program. Research-intensive programs—especially those with T32 funding or with faculty who run active NIH-funded labs—will weight prior research experience heavily, and a candidate without any scholarly output will be at a meaningful disadvantage. Clinically focused programs at high-volume centers are more likely to evaluate candidates primarily on clinical skills and patient care orientation. The honest answer is: some research experience improves your competitiveness across the board, and a peer-reviewed publication or strong abstract record opens programs that would otherwise not be realistic options. If you are mid-fellowship and light on research, the time to start a project is now, not after you apply.

Can I do PH fellowship and then return to general cardiology or pulmonary practice?

Technically yes, but this is not how programs think about their training investment, and it is not a framing that will serve you well in applications. PH fellowship is resource-intensive for programs to run, positions are scarce, and program directors are selecting for candidates who intend to build a PH-focused practice or research program. If your actual goal is general subspecialty practice with some PH exposure, the more efficient path is ensuring your primary fellowship provides adequate PH exposure rather than pursuing a dedicated PH year. Be honest with yourself about your goals before investing the application effort—and be honest with programs, which are small enough that professional reputation in this subspecialty is built early and lasts.