Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alan Wilder, O.D.

Optometrist in Baltimore, MD · enumerated 2006.

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

National Provider Identifier

1659309938

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Registry record

Entity type Individual (Type 1)

Name Alan Wilder

Credential O.D.

Sex Male

Practice address 600 N Wolfe St, Baltimore, MD, 21287

Phone (410) 955-5080

Enumeration date Jun 28, 2006

Last updated in NPPES Feb 20, 2013

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License TA0803 (MD) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
787798600	Medicaid	MD	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Alan Wilder?

Alan Wilder is registered in NPPES with the primary taxonomy of Optometrist. 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-02-20.