Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Donald William Putnoi, M.D.

Ophthalmology Physician in Waltham, MA · enumerated 2005.

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

National Provider Identifier

1689673980

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Registry record

Entity type Individual (Type 1)

Name Dr. Donald William Putnoi

Credential M.D.

Sex Male

Practice address Waltham, MA, 02453

Phone (781) 891-1447

Fax (781) 891-7936

Enumeration date Jul 19, 2005

Last updated in NPPES Jan 30, 2014

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 32609 (MA) 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
B33295	Other	MA	BLUE CROSS BLUE SHIELD
15243	Other	MA	HARVARD PILGRIM HEALTH
97747	Other	MA	US HEALTHCARE
25543	Other	MA	FALLON HEALTH CARE
0006372	Other	MA	NEIGHBORHOOD HEALTH PLAN
820000272	Other	MA	RAILROAD MEDICARE
032609	Other	MA	TUFTS HEALTH PLAN
2024195	Medicaid	MA	-
B20255601	Other	MA	CIGNA HEALTHCARE
08-00281	Other	MA	UNITED HEALTHCARE

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

What specialty is Donald Putnoi?

Donald Putnoi is registered in NPPES with the primary taxonomy of Ophthalmology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Martin Richler Ophthalmology Physician · Waltham, MA NPI 1083613384 Sharon Smith Pediatrics Physician · Waltham, MA NPI 1760472211 Bruce Becker Gastroenterology Physician · Waltham, MA NPI 1255312104 Thomas Grady Surgery Physician · Waltham, MA NPI 1518949346 Twinbrook Surgical Associates Surgery Physician · Waltham, MA NPI 1225010846 Tanya Yanovsky Psychiatry Physician · Waltham, MA NPI 1295719748 Ann Abbott Midwife · Waltham, MA NPI 1881669265 Gigi Girgis Neurology Physician · Waltham, MA NPI 1053387316

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-30.