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Glenn E. Graves, M.D.

Glaucoma Specialist (Ophthalmology) Physician in Greenfield, WI · enumerated 2005 · practices at Ophthalmology Associates S C.

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

National Provider Identifier

1780671677

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Registry record

Entity type Individual (Type 1)
Name Glenn E. Graves
Credential M.D.
Sex Male
Practice address 4600 W Loomis Rd Ste 310, Greenfield, WI, 53220
Phone (414) 281-0963
Fax (414) 281-0959
Enumeration date Oct 5, 2005
Last updated in NPPES Apr 23, 2024

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 27890-020 (WI) Secondary
207WX0009X Glaucoma Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License 27890-020 (WI) 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
180020621 Other WI RR MEDICARE
391484998011 Other WI BLUE CROSS
391484998C Other WI HUMANA
0800065 Other WI PRIMECARE
391484998 Other WI TAX ID
31485900 Medicaid WI -

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

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.
What specialty is Glenn Graves?
Glenn Graves is registered in NPPES with the primary taxonomy of Glaucoma Specialist (Ophthalmology) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-23.