About
Dr. Ann C. Morrill brings over 30 years of practice in internal medicine and endocrinology to her patients in the Baltimore area. She earned her Bachelor of Science in Biochemistry and her Doctorate of Medicine from Brown University, completing both in 1980 and 1984 respectively. She then trained at Johns Hopkins Hospital, completing her internship and internal medicine residency between 1984 and 1987. Her fellowship in endocrinology, also at Johns Hopkins, followed from 1989 to 1992. She holds board certifications as a Diplomate of the American Board of Internal Medicine in both internal medicine and endocrinology. In 2005, she added a Doctor of Jurisprudence from the University of Maryland School of Law to her credentials.
Dr. Morrill served as an instructor at Johns Hopkins School of Medicine for nearly two decades across multiple appointments. She also taught at the University of Maryland School of Medicine and Nursing and at Towson University's Physician's Assistant Program. She is a Fellow of the American Association of Clinical Endocrinologists and a Fellow of the American Association of Cardiologists, as well as a member of Sigma Xi. She has published research in reproductive endocrinology and stress-related adenylyl cyclase activity. Outside medicine, she tends an organic garden, keeps bees, raises chickens, and plants trees. That same attentiveness to living things shapes how she approaches patient care. Caretaking, she says, is not just a profession but a source of joy.
Education & Training
Undergraduate
Brown University, B.S. Biochemistry, 1980
Medical School
Brown University, Doctorate of Medicine, 1984
Residency
Internal Medicine, Johns Hopkins Hospital, 1985-1987
Fellowship
Endocrinology, Johns Hopkins Hospital, 1989-1992
Additional Training
Internship, Johns Hopkins Hospital, 1984-1985; Doctor of Jurisprudence, University of Maryland School of Law, 2005
Certifications
Conditions Treated
Who is Dr. Morrill right for?
Dr. Morrill is a strong fit for adults seeking a physician with deep expertise in both internal medicine and endocrinology. Patients managing endocrine disorders, pituitary lesions, or complex internal medicine conditions benefit from her dual board certifications. Her focus on prevention and longevity suits patients who want proactive, thorough annual assessments. Those who value a long-term relationship with a physician who provides unhurried visits and after-hours access will find her practice especially well-suited to their needs.
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Frequently Asked Questions
Dr. Morrill specializes in internal medicine and endocrinology. She treats endocrine disorders, pituitary lesions, and a broad range of internal medicine conditions. Her dual board certifications give her particular depth in managing complex hormonal and metabolic issues alongside general adult health concerns.
Yes. Dr. Morrill holds dual board certifications through the American Board of Internal Medicine, covering both internal medicine and endocrinology. She earned these credentials after completing her fellowship training at Johns Hopkins Hospital.
Dr. Morrill completed her medical degree at Brown University and then trained at Johns Hopkins Hospital for her internship, internal medicine residency, and endocrinology fellowship. Her training at Johns Hopkins spanned from 1984 through 1992.
Yes. Dr. Morrill taught at Johns Hopkins School of Medicine across multiple appointments from 1988 to 2012. She also served as a preceptor, instructor, and faculty associate at the University of Maryland School of Medicine and Nursing, and as an instructor at Towson University's Physician's Assistant Program from 2004 to 2012.
Yes. Dr. Morrill has published work in reproductive endocrinology and stress research, including a chapter on pituitary sellar lesions and a study on how stress alters adenylyl cyclase activity in the rat pituitary and frontal cortex.
Dr. Morrill is a Fellow of the American Association of Clinical Endocrinologists and a Fellow of the American Association of Cardiologists. She is also a member of Sigma Xi, the scientific research honor society.
Dr. Morrill focuses on prevention, early detection, and building a genuine relationship with each patient. She keeps her panel small so visits stay unhurried and she has time to listen fully. She aims to treat every patient with the same attention and care she would give her own family.
Yes. Dr. Morrill is reachable by phone after hours and on weekends for urgent matters. This direct access is a core benefit of her MDVIP-affiliated concierge practice.
Dr. Morrill holds an affiliation with St. Joseph's Medical Center. She can refer patients to specialists within her network when additional care is needed.
Doctor profile last updated March 22, 2026