What is William Holmes's NPI number?

William Holmes's National Provider Identifier (NPI) is 1063161065, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Holmes's specialty?

William Holmes is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).

Where is William Holmes located?

William Holmes's practice location on file with NPPES is 1100 W 34th St, Houston, TX 77018-6206.

What is William Holmes's phone number?

The practice phone number listed in the NPPES registry for William Holmes is (713) 861-3939.

Is William Holmes's NPI active?

Yes — William Holmes's NPI (1063161065) is active in the NPPES registry as of the last update on 2026-01-26.

IndividualActive

William Holmes, MD

NPI 1063161065 · Family Medicine Physician · Houston, TX

William Holmes, MD is a Family Medicine Physician provider in Houston, TX (NPI 1063161065).

Provider details

NPI number: 1063161065
Entity type: Individual
Primary specialty: Family Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: V8283 (TX)

Specialties & taxonomies

Family Medicine PhysicianPrimary207Q00000XLicense V8283 (TX)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(60/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
4 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

1100 W 34th St

Houston, TX 77018-6206

Phone: (713) 861-3939

Street-level locationGet directions

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Mailing address