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

Douglas Martin Weissman, MD

Individual provider Gastroenterology Physician · NPI 1801800289

Douglas Martin Weissman, MD is a Gastroenterology in Pittsburgh, Pennsylvania. Qualified in 1985, 41 years ago. Practices with Partners Physician Group, a 415-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in Illinois, Indiana, New Jersey and Ohio and 2 more.

Years since qualifying
41
Licensed in
IL, IN, NJ, OH, PA, WI
In the registry since
2006
Specialties on file
7
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

1307 Federal St Ste B100
Pittsburgh, PA 15212-4761
Phone: (412) 359-8900
Fax: (412) 359-8977
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 11104 Parkview Circle Dr Ste 310, Fort Wayne, IN 46845-1733 — (260) 266-5230
  • 1701 N Senate Blvd, Indianapolis, IN 46202-1239 — (317) 962-2000
  • 1505 W Sherman Ave, Vineland, NJ 08360-7059 — (856) 691-1129
  • 111 S Grant Ave, Columbus, OH 43215-4701 — (614) 566-9550

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 036144304 (IL)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 3872 (WI)
Gastroenterology Physician Taxonomy 207RG0100X · Licence MD479317 (PA)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 25MA04832600 (NJ)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 35.129369 (OH)
Internal Medicine Physician Taxonomy 207R00000X · Licence 01077964A (IN)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 01077964A (IN)

Record details

NPI number1801800289
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 28, 2006
Last updated in NPPESDecember 3, 2025
Certification dateDecember 3, 2025

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 1985 (41 years in practice)
Group practice Partners Physician Group — 415 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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