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

Dr. Mark O'Brien Peeler, MD

Individual provider Surgery Physician · NPI 1316931421

Dr. Mark O'Brien Peeler, MD is a Vascular Surgery in Annapolis, Maryland. Graduated from Johns Hopkins University School of Medicine in 1992, 34 years ago. Practices with Medstar Heart Institute LLC, a 311-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Maryland.

Years since qualifying
34
Trained at
Johns Hopkins University School of Medicine
Licensed in
MD
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2002 Medical Pkwy Ste 520
Annapolis, MD 21401-3046
Phone: (410) 266-1188
Fax: (410) 266-9466
Show map & directions

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

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence D0056208 (MD)

Record details

NPI number1316931421
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 2, 2005
Last updated in NPPESJanuary 24, 2011
Mailing addressPo Box 64323, Baltimore, MD 21264-4323

Medicare enrollment

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

Medicare specialtyVASCULAR SURGERY
Medical schoolJOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1992 (34 years in practice)
Group practice Medstar Heart Institute Llc — 311 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations5 on file with Medicare

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