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

Mark Pirner, MD

Individual provider Internal Medicine Physician · NPI 1538439690

Mark Pirner, MD is an Internal Medicine Physician in Newtown, Connecticut. Practices as a sole proprietor and works from 2 locations. Licensed in Connecticut.

Licensed in
CT
In the registry since
2012
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

1 Stony Brook Rd
Newtown, CT 06470
Phone: (475) 323-7210
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1 Stony Brook Rd, Newtown, CT 06470 — (475) 323-7210

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 52665 (CT)

Record details

NPI number1538439690
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 6, 2012
Last updated in NPPESApril 8, 2022
Certification dateApril 8, 2022
Mailing address1 Stony Brook Rd, Newtown, CT 06470-1017

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