U.S. Department of Health and Human Services

 Contact Us


Sandy Wallace
Program Coordinator
10 Center Drive, MSC 1619
Bethesda, MD 20892
Phone: (301) 496-1913
Fax: (301) 480-4517
E-mail: sandraw@intra.niddk.nih.gov

Ranganath Muniyappa, M.D., Ph.D.
Program Director
Address: Building 10, CRC,
Room 5-3671 Center Drive
Bethesda, MD 20892-1613
Phone: (301) 451.7702
E-mail: Ranganath.Muniyappa@nih.gov

Endocrinology Fellowship Details

The Endocrinology Fellowship is a 3-year Accreditation Council for Graduate Medical Education (ACGME)-accredited program that provides a comprehensive training experience ideal for physicians who seek a broad education in both research and clinical endocrinology.

At the NIH, you have access to a training experience that is broad, highly specialized, and offers:
  • A professional atmosphere that values one-on-one working relationships between fellows and supervising faculty, many of whom are world renowned experts in the field
  • A world-wide and local referral basis which ensures exposure to a variety of endocrine disorders ranging from common to rare
  • Access to specialized testing units and renowned experts in interventional procedures (adrenal and parathyroid vein sampling, inferior petrosal sinus sampling, functional arteriography for insulinoma and parathyroid localization, neurosurgery team, etc.) for specialized diagnostic or therapeutic protocols
  • World-class in-house clinical laboratory services with rapid results
  • Specialized diabetes clinics for training with intensive insulin therapy and multidisciplinary inpatient glucose management team
  • Specialized training in FNA procedures with on-site cytopathology and individualized ultrasound training

Fellowship Structure

The fellowship spans 3 years.

1st Year

  • NIH Clinical Center Rotation: 6 months
  • Georgetown University Hospital: 8 weeks
  • Washington Hospital Center: 8 weeks
  • Continuity clinic at NIH Clinical Center: weekly
  • NIH Lipid Rotation: 4 weeks
  • NIH Reproductive Endocrinology and Infertility: 2 weeks
  • 4 month rotation (2 months at both Washington Hospital Center and Georgetown University Hospital)

2nd Year

  • Mentored Research
  • Continuation of weekly Continuity Clinic at NIH Clinical Center
  • One-half day session of the NIH Diabetes Clinic and one half day session of the MobileMed/Suburban Hospital Community Clinic on the alternate week
  • Consult service: 4-6 weeks per year, which includes Blood Glucose Management Service (BGMS)

3rd Year

  • Mentored Research
  • Consult Service 4-6 weeks per year
  • Clinic: Weekly Continuity Clinic, Diabetes Clinic, and pre-attending training the Mobile Med/Suburban Hospital Community Clinic monthly​

Conferences and Seminars


  • No scheduled conferences


  • Outpatient Continuity Clinic 8am – noon,
  • FNAB clinic 2-3:30pm
  • Post-clinic conference 3:30-4:30pm


  • Diabetes Core Lecture Series 12:15pm – 1pm
  • Diabetes Clinic 1pm – 3pm


  • Admit/Discharge Rounds 10-11am
  • Radiology Rounds 1:15 – 1:45pm
  • Journal Club or Fellows Presentation 1:45pm – 2:30pm
  • Surgery Rounds 3pm – 4pm
  • Mobile Med/Suburban Hospital Community Clinic 5 PM


  • Inpatient Rounds 8am – 11am
  • Didactic Lecture Series 11am – noon
  • Endocrine Grand Rounds 1:15pm – 2:15pm

Additional ad-hoc rounds

  • Pheochromoctyoma/paraganglioma rounds (Dr. Pacak)
  • Bone/X-ray rounds (Dr. Collins)
  • Adrenal/Pituitary (Dr. Stratakis)

NIH Clinical Center Rotations


The NIH Clinical Center has 240 inpatient beds and 82 day-hospital stations. It is a unique hospital that is dedicated to excellent patient care and furthering scientific advancements. Fellows make daily rounds, discuss patients with the attending physicians, and participate in management decisions related to both patient care and clinical investigation.

Patients with a wide variety of endocrine diseases are studied at the Clinical Center providing clinical experience of substantial depth and breadth. Although all patients are admitted under IRB-reviewed research protocols, there are many other aspects of diagnosis and patient care that fall completely under the discretion of the endocrine fellows especially for patient enrolled in observational or natural history studies.

A unique feature of this training program is the opportunity to work closely with pediatric and reproductive endocrinology fellows and faculty.  The NIH rotation highlights endocrine pathology from pediatrics to adulthood.  During the 2 week REI elective, the fellow gains experience with of reproductive issues and assessment and treatment of infertility.

The lipid rotation during the first year provides fellows exposure to common and rare disorders of lipid and cholesterol metabolism. During this rotation, didactics will focus on familial or genetic disorders of lipid metabolism, including pathophysiology, diagnosis and management. ​

Training Programs and Additional Opportunities


Additional resources exist for fellows who train at the NIH, including opportunities for further training programs in clinical research.

CC-Duke Training Program in Clinical Research: This program allows participants to attend formal courses in research design, research management, medical genomics, and statistical analysis at the Clinical Center by means of video-conferencing from Duke or on-site by adjunct faculty. The program is designed primarily for NIH staff clinicians, clinical fellows, and other health professionals who are training for careers in clinical research, and must be sponsored.

Introduction to the Principles and Practice of Clinical Research: The Introduction to the Principles and Practice of Clinical Research (IPPCR) is a course to train participants on how to effectively conduct clinical research. The course focuses on the spectrum of clinical research and the research process by highlighting epidemiologic methods, study design, protocol preparation, patient monitoring, quality assurance, and Food and Drug Administration (FDA) issues. The course is free of charge and is offered annually October-March.

Principles of Clinical Pharmacology: The "Principles of Clinical Pharmacology" course is a weekly lecture series covering the fundamentals of clinical pharmacology as a translational scientific discipline focused on rational drug development and utilization in therapeutics. The course is free of charge and is offered annually at the NIH Clinical Center and runs from September through April.​​​