- What "REI Jobs" Actually Means
- The Training Pipeline That Leads to the Job Market
- Who Hires Reproductive Endocrinologists
- What the Work Looks Like by Domain
- Practice Settings Compared
- Board Certification and Your Job Search
- How to Evaluate an Offer
- Timing Your Boards Around Your First Job
- Frequently Asked Questions
- REI jobs require medical school, four years of OB/GYN residency, and a three-year REI fellowship per the ASRM scope-of-practice statement.
- ABOG certification in REI involves a written Qualifying Examination and an oral Certifying Examination.
- For fellowship graduates from 2026 onward, the thesis moves from CE eligibility to QE eligibility.
- Per ABOG's 2026 update, 2025 first-time REI QE pass rate was 100% (N=55); CE pass rate was 94.7% (N=57).
What "REI Jobs" Actually Means
In this article, "REI" means Reproductive Endocrinology & Infertility, the OB/GYN subspecialty that manages hormonal disorders of reproduction, infertility, recurrent pregnancy loss, fertility preservation, and the anatomic and genetic conditions that affect conception. If you are new to the terminology, our explainers on what REI is and what REI stands for cover the basics before you dive into career planning.
An REI job is not a single role. A reproductive endocrinologist might run an IVF laboratory-adjacent clinical program, manage complex endocrine disorders in a university setting, build a fertility-preservation service for oncology patients, or teach and mentor fellows. The common thread is that every one of these roles draws on the same body of knowledge the subspecialty board examines, which makes the exam content a surprisingly good map of the job itself.
The Training Pipeline That Leads to the Job Market
The ASRM 2025 scope-of-practice statement describes the training sequence for the subspecialty in the United States: medical school, a four-year obstetrics and gynecology residency, and a three-year REI fellowship. That is the entry ticket. Employers recruiting for REI positions are almost always hiring fellowship graduates or soon-to-graduate fellows, often a year or more ahead of the start date.
Because recruiting happens early, your job search and your board preparation overlap. Practices will ask about your certification status and your plan for the Qualifying and Certifying Examinations before you have taken either. For a full walkthrough of the pathway, see our guide to REI requirements and eligibility and our overview of REI training.
Who Hires Reproductive Endocrinologists
REI hiring falls into a handful of employer categories. Each shapes your daily work, your autonomy, and the way your board certification is viewed.
Academic Medical Centers
University programs combine clinical care with teaching and research. You may supervise OB/GYN residents and REI fellows, run clinical or translational studies, and see the most complex referrals, such as congenital reproductive tract anomalies, Asherman syndrome, and refractory recurrent pregnancy loss. Academic appointments typically expect timely board certification as part of promotion and credentialing.
Private Fertility Practices
Independent fertility centers are a major employer of newly trained reproductive endocrinologists. Roles often emphasize high-volume infertility evaluation, ovulation induction, intrauterine insemination, and assisted reproductive technology cycles. Partnership tracks, call coverage, and how the practice shares laboratory and procedural responsibilities vary widely from group to group.
Multi-Site and Network Practices
Larger fertility networks operate multiple clinics under shared administration. They can offer structured onboarding, standardized protocols, and a path into regional or medical-director roles, with the tradeoff of less individual control over clinical policy.
Hospital-Affiliated Programs
Some health systems run fertility services as part of a women's health or reproductive medicine line. These roles may blend general reproductive endocrine care, fertility preservation referrals from oncology, and coordination with maternal-fetal medicine and urology.
Other Settings
Smaller numbers of reproductive endocrinologists work in industry, reproductive-technology laboratories, or consulting roles, usually after building clinical experience first.
What the Work Looks Like by Domain
The six content areas of the ABOG REI blueprint line up closely with real clinical work. Reading the blueprint as a job description is a useful exercise, and it reinforces why the board content is not abstract. Our complete guide to the six REI exam domains goes deeper on each area.
Domain 1: Foundational Reproductive Endocrinology
The basic science beneath every treatment decision.
- Hormone structure and function
- Basic pharmacology, which underlies every stimulation protocol you will prescribe
- Laboratory assays, including how to interpret results and recognize their limitations
Domain 2: Reproductive Endocrine Function and Disease
The general-endocrine side of the specialty, which fills many consult and clinic slots.
- Reproductive physiology across the lifespan
- Neuroendocrine and thyroid disorders
- Endometrial physiology and abnormal uterine bleeding
- Ovarian and adrenal disorders, both idiopathic and iatrogenic
Domain 3: Conception and Pregnancy: Physiology and Pathology
Gamete and embryo biology plus early pregnancy care.
- Gamete biology and early embryo development
- Endocrinology of pregnancy and early pregnancy management
- Recurrent pregnancy loss evaluation and counseling
Domain 4: Fertility and Infertility
The core of most practices.
- Female fertility and infertility, and male infertility
- Special considerations in fertility treatment
- ART techniques
- Fertility preservation
Domain 5: Anatomic Reproductive Disorders
The surgical and imaging-heavy part of the job.
- Pelvic adhesive disease, endometriosis, and adenomyosis
- Congenital anomalies of the reproductive tract
- Asherman syndrome, leiomyomas, and endometrial polyps
Domain 6: Reproductive Genetics
Increasingly central as genetic testing becomes routine in fertility care.
- Understanding genetic testing and screening
- Applying genetic screening and testing to patient care
One practical observation: the blueprint is organized by clinical category, not by job title. A practice that emphasizes ART will lean on Domains 3 and 4 daily, while an academic reproductive endocrine consult service lives in Domain 2. Know which domains your target job stresses, because those are the areas where colleagues and patients will test your knowledge in real time.
Practice Settings Compared
| Setting | Typical Emphasis | Strongest Domain Overlap | Consider If You Want |
|---|---|---|---|
| Academic medical center | Complex referrals, teaching, research | Domains 2, 5, and 6 | Mentoring and scholarship |
| Private fertility practice | Infertility evaluation and ART | Domains 3 and 4 | Procedural volume and ownership paths |
| Multi-site network | Standardized protocols across clinics | Domains 1, 3, and 4 | Structured onboarding and leadership tracks |
| Hospital-affiliated program | Reproductive endocrine care plus cross-service referrals | Domains 2, 4, and 5 | Collaboration with oncology, MFM, and urology |
Board Certification and Your Job Search
Certification in this subspecialty runs through the American Board of Obstetrics and Gynecology. It has two stages: the written Qualifying Examination, delivered through Pearson VUE, and the oral Certifying Examination. Employers pay attention to where you stand in this sequence, so be ready to discuss it in interviews. For the broader picture, read our pages on REI certification and what REI certification involves.
The most recent issuer data gives useful context. ABOG's 2026 update reports that in 2025 the first-time REI QE pass rate was 100% (N=55) and the CE pass rate was 94.7% (N=57). The same presentation has internally inconsistent repeat and overall cohort counts, so we do not assert a reconciled overall rate. For a fuller discussion, see our REI pass rate analysis. The takeaway for job seekers is calm confidence rather than complacency: these are small, highly selected cohorts, and the exam still tests the full breadth of the subspecialty.
The same update lists continuing-certification participation as required to remain certified, so the job does not end the exam story. Expect your employer to care about maintaining certification, and ask whether the practice supports CME time and cost for it. If you are weighing the investment, our certification cost breakdown and ROI analysis help frame the decision.
How to Evaluate an Offer
Compensation matters, but it is only one dimension. For a realistic earnings picture, consult our REI salary guide, and keep in mind that structure often matters as much as headline numbers. Questions worth asking:
- Case mix: What proportion of the practice is ART versus general reproductive endocrinology, male factor evaluation, fertility preservation, and surgery? Does that match the domains you want to grow in?
- Laboratory relationship: Who directs the embryology and andrology labs, and how are quality and outcomes reviewed?
- Surgical access: Where will you operate for hysteroscopy, myomectomy, or adhesiolysis, and how is block time allocated?
- Genetics support: Is there access to genetic counseling and an established preimplantation and carrier-screening workflow?
- Partnership path: How and when does an associate become an owner, and what are the buy-in terms?
- Board support: Is there protected time and financial backing for QE and CE preparation and for continuing certification?
- Call and coverage: Fertility cycles are time-sensitive. How are weekend monitoring and retrievals staffed?
Key Takeaway
Choose your first job partly by which blueprint domains it will exercise most. A position that keeps you fluent in the full scope of the subspecialty makes board preparation easier and keeps you employable if you later move between practice types.
Timing Your Boards Around Your First Job
This is the one place where study scheduling belongs in a jobs article, because the sequence of your first year can make or break your preparation. A reasonable approach is to match your preparation to what your job exposes you to least. If your practice is ART-heavy, spend extra deliberate time on the Domain 1 laboratory assays and pharmacology and the Domain 5 anatomic disorders you will see less often. If your role is academic and endocrine-focused, shore up ART techniques and early embryo development.
Map Your Gaps
- Compare your fellowship case log against the six domains
- Flag weak subcategories such as reproductive genetics or neuroendocrine disorders
Build the Weak Domains
- Schedule your least-exposed domains first, while clinical load is still ramping up
- Use practice questions to confirm which areas need the most work
Integrate and Rehearse
- Review cross-domain topics like recurrent pregnancy loss, which spans physiology, genetics, and anatomy
- Rehearse oral case presentations aloud for the Certifying Examination
For a structured plan, our REI study guide and one-page cheat sheet are good companions, and you can calibrate your expectations with our piece on how hard the REI exam is. For scoring questions, see what the passing score means.
When you are ready to test yourself against realistic questions, the main REI practice test platform is built around these same six domains.
Frequently Asked Questions
Per the ASRM 2025 scope-of-practice statement, the pathway is medical school, a four-year obstetrics and gynecology residency, and a three-year REI fellowship. Most employers recruit from fellowship graduates and current fellows.
Not necessarily. Many reproductive endocrinologists are hired while still moving through the Qualifying and Certifying Examinations. Employers do expect a credible plan and often a defined timeline, so be prepared to discuss it.
Yes. ABOG's 2026 update confirms that the thesis moves from Certifying Examination eligibility to Qualifying Examination eligibility for fellowship graduates from 2026 onward. Earlier graduates retain their prior requirements.
It depends on your goals. Academic centers favor teaching and complex cases, private practices and networks emphasize ART volume and ownership paths, and hospital programs emphasize collaboration across services. Match the setting to the domains you want to practice most.
Largely, yes. The six blueprint categories, from foundational endocrinology through reproductive genetics, mirror the clinical scope of the subspecialty, so the same knowledge supports both your exams and your daily practice.