Individual provider · Type 1 NPI

Erik Aron Holzwanger, MD

Gastroenterology Physician · Boston, MA

NPI number 1457747776 Active

Practice location

800 Washington St
Boston, MA 02111-1552

Call (617) 636-5000 Map

Mailing address

65 Hamilton Ave
Haverhill, MA 01830-3313

Other practice locations

  • 55 Lake Ave N, Worcester, MA 01655-0002 · (508) 334-1000
  • 736 Cambridge St, Brighton, MA 02135 · (617) 562-5432

Specialties and licenses

TaxonomyCodeLicense
Gastroenterology Physician Primary 207RG0100X277398 (MA)

Gastroenterology Physician: An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

1,460 other providers at this address

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About NPI 1457747776

Erik Aron Holzwanger, MD's National Provider Identifier is 1457747776, issued on Apr 14, 2015. The primary taxonomy on file is Gastroenterology Physician (207RG0100X), and the practice location is in Boston, MA. The record was last updated on Jan 5, 2026.