Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William D Gruzensky, MD

Ophthalmology Physician in Anchorage, AK · enumerated 2006.

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

National Provider Identifier

1992812234

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Registry record

Entity type Individual (Type 1)

Name Dr. William D Gruzensky

Credential MD

Sex Male

Practice address 1600 A St Ste 200, Anchorage, AK, 99501

Phone (907) 272-2423

Fax (907) 272-2428

Enumeration date Aug 24, 2006

Last updated in NPPES Nov 20, 2020

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License MD00036987 (WA) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License MEDS3011 (AK) 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
180036475	Other	ID	RAIL ROAD MEDICARE
180037541	Other	AK	RAIL ROAD MEDICARE
1992812234	Medicaid	OR	-
50180070	Medicaid	NM	-
1012439	Medicaid	AK	-
180035935	Other	WA	RAIL ROAD MEDICARE
180041022	Other	OR	RAIL ROAD MEDICARE
180044160	Other	MT	RAIL ROAD MEDICARE
1024009	Medicaid	WA	-
180036476	Other	ID	RAIL ROAD MEDICARE
1992812234	Medicaid	MT	-

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 is the NPI number for William Gruzensky?

The National Provider Identifier (NPI) for William Gruzensky is 1992812234, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Gruzensky practice?

The practice location on file with NPPES is in Anchorage, AK. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Paul Barney Optometrist · Anchorage, AK NPI 1841245685 Sheila Jensen Certified Registered Nurse Anesthetist · Anchorage, AK NPI 1629015722 Rachel Crawford Certified Registered Nurse Anesthetist · Anchorage, AK NPI 1174068951 Tessa Delaney Optometrist · Anchorage, AK NPI 1518495191

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-11-20.