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

Dr. Mark Theodore Birns, MD

Individual provider Gastroenterology Physician · NPI 1982692828

Dr. Mark Theodore Birns, MD is a Gastroenterology Physician in Rockville, Maryland. Licensed in Maryland. Registered with an NPI since 2005.

Licensed in
MD
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

9711 Medical Center Dr Ste 308
Rockville, MD 20850-3323
Phone: (301) 251-0015
Fax: (301) 340-9360
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence D0024994 (MD)

Record details

NPI number1982692828
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 13, 2005
Last updated in NPPESMarch 4, 2013

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