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Dr. D. Rudolph Black, O.D.

Optometrist in Houston, TX · enumerated 2005.

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

National Provider Identifier

1508869215

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Registry record

Entity type Individual (Type 1)
Name Dr. D. Rudolph Black
Credential O.D.
Sex Male
Practice address 4401 Martin Luther Kings Blvd, Houston, TX, 77204
Phone (713) 743-2020
Fax (713) 743-0963
Enumeration date May 27, 2005
Last updated in NPPES May 11, 2022

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 2311T (TX) Secondary
152W00000X Optometrist Eye and Vision Services Providers · License 2311TG (TX) Secondary
152W00000X Optometrist Eye and Vision Services Providers · License 2311 (TX) 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
112409104 Medicaid TX -
03708501 Medicaid TX -

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 D. Black?
D. Black 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-05-11.