About
Dr. Tammy Hadley graduated Summa Cum Laude from Rutgers University with a Bachelor of Arts in Biochemistry before earning her Doctorate of Medicine from Johns Hopkins University School of Medicine in 1992. She completed both her internship and her internal medicine residency at Johns Hopkins Hospital, finishing her training in 1995. She holds board certification as a Diplomate of the American Board of Internal Medicine.
Dr. Hadley joined Park Medical Associates as a partner in 2000 and has served on the Johns Hopkins Hospital teaching faculty since 1995. She also sits on the Admissions Committee for Johns Hopkins School of Medicine. Over more than 25 years as an internist, she has built extensive diagnostic experience with cardiovascular, metabolic, and neurological conditions. She holds membership in the American College of Physicians, the American Medical Association, and the National Medical Association. In 2011, the Bridgeton African-American Union recognized her with its Community Recognition Award. She has supported BAAU community outreach since 2010. Baltimore named her one of its Best Doctors in 2000. Her approach centers on open communication and a genuine partnership with each patient.
Education & Training
Undergraduate
Rutgers University, Bachelor of Arts, Biochemistry, 1988, Summa Cum Laude
Medical School
Johns Hopkins University School of Medicine, Doctorate of Medicine, 1992
Residency
Internal Medicine, Johns Hopkins Hospital, Baltimore, MD, 1993-1995
Additional Training
Internship, Johns Hopkins Hospital, Baltimore, MD, 1992-1993
Certifications
Conditions Treated
Who is Dr. Hadley right for?
Dr. Hadley is a strong fit for adults seeking a long-term primary care relationship grounded in trust. Patients managing cardiovascular, metabolic, or neurological conditions benefit most from her 25-plus years of diagnostic experience. She works well with individuals who want thorough annual screenings and a personalized wellness plan. Adults from Baltimore City, Baltimore County, and surrounding communities make up her patient base. Because her panel has limited availability, prospective patients should contact the practice early.
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Frequently Asked Questions
Dr. Hadley focuses on cardiovascular, metabolic, and neurological conditions. Over more than 25 years in internal medicine, she has developed deep diagnostic and management experience in all three areas. She pairs that clinical focus with comprehensive preventive screenings as part of each patient's annual wellness program.
Dr. Hadley earned her medical degree from Johns Hopkins University School of Medicine in 1992. She completed her internship and internal medicine residency at Johns Hopkins Hospital, finishing in 1995. She has remained on the Johns Hopkins teaching faculty ever since.
Yes. Dr. Hadley holds board certification as a Diplomate of the American Board of Internal Medicine.
Dr. Hadley builds her practice around a strong physician-patient partnership rooted in mutual trust and respect. She believes open communication leads to better care. She works with each patient to develop an individualized wellness plan that combines preventive strategies with active condition management.
Yes. Dr. Hadley maintains established referral relationships with specialists at Johns Hopkins and Greater Baltimore Medical Center. Those connections help her coordinate care efficiently when patients need subspecialty support.
Baltimore named Dr. Hadley one of its Best Doctors in 2000. The Bridgeton African-American Union presented her with its Community Recognition Award in 2011. She has also served on the Admissions Committee at Johns Hopkins School of Medicine since 1999.
Dr. Hadley holds membership in the American College of Physicians, the American Medical Association, and the National Medical Association.
Dr. Hadley has limited availability and may have a waiting list. Prospective patients should contact the practice directly to check on current openings.
Yes. Dr. Hadley has served as part-time teaching faculty at Johns Hopkins Hospital since 1995. She also sits on the Admissions Committee for Johns Hopkins School of Medicine, a role she has held since 1999.
Doctor profile last updated June 8, 2026