Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael B Peyser, MD

Surgery Physician in Watertown, NY · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1881671238

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Registry record

Entity type Individual (Type 1)

Name Michael B Peyser

Credential MD

Sex Male

Practice address 1575 Washington St, Watertown, NY, 13601

Phone (315) 788-2805

Fax (315) 779-5066

Enumeration date Dec 28, 2005

Last updated in NPPES Feb 27, 2025

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 0101056084 (VA) Secondary

2086X0206X Surgical Oncology Physician Allopathic & Osteopathic Physicians · License 0101056084 (VA) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 217155 (NY) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
1881671238	Medicaid	VA	-
000534041001	Other	NY	BLUE SHIELD WNY
03470353	Medicaid	NY	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Michael Peyser's NPI record?

Cross-check NPI 1881671238 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1881671238 active?

Yes, as of the latest NPPES snapshot, NPI 1881671238 is active (record last updated 2025-02-27).

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Joseph Wetterhahn Family Medicine Physician · Watertown, NY NPI 1679521132 Ryan Tyler Family Medicine Physician · Watertown, NY NPI 1336198639 Spencer Falcon Psychiatry Physician · Watertown, NY NPI 1144279449 Marylene Duah Infectious Disease Physician · Watertown, NY NPI 1700835337 Sadaqat Khan Psychiatry Physician · Watertown, NY NPI 1154371201 Maritza Santana-Garcia Psychiatry Physician · Watertown, NY NPI 1316997463 Nancy Swenson Obstetrics & Gynecology Nurse Practitioner · Watertown, NY NPI 1740232800 Sharen Yaworski Nurse Practitioner · Watertown, NY NPI 1841242849

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-27.