Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Mary Elizabeth Callsen

Individual provider Internal Medicine Physician · NPI 1639137573

Dr. Mary Elizabeth Callsen is an Internal Medicine in Bethesda, Maryland. Graduated from Ohio State University College of Medicine in 1981, 45 years ago. Practices with Johns Hopkins Community Physicians, Inc, a 765-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Maryland.

Years since qualifying
45
Trained at
Ohio State University College of Medicine
Licensed in
MD
In the registry since
2006

Practice location Address checks out

7315 Wisconsin Ave
Bethesda, MD 20814-3202
Phone: (240) 235-9100
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 7513 Wisconsin Ave, Chevy Chase, MD 20815-4404 — (301) 656-4545

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence D0059499 (MD)

Record details

NPI number1639137573
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedMay 2, 2006
Last updated in NPPESJanuary 27, 2023
Certification dateJanuary 27, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 1981 (45 years in practice)
Group practice Johns Hopkins Community Physicians, Inc — 765 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Other providers in Bethesda