What is Clifford Williams's NPI number?

Clifford Williams's National Provider Identifier (NPI) is 1629136528, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Clifford Williams's specialty?

Clifford Williams is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).

Where is Clifford Williams located?

Clifford Williams's practice location on file with NPPES is 6104 Old Branch Avenue, Temple Hills, MD 20748-2518.

What is Clifford Williams's phone number?

The practice phone number listed in the NPPES registry for Clifford Williams is (301) 702-6100.

Is Clifford Williams's NPI active?

Yes — Clifford Williams's NPI (1629136528) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Clifford Williams, PA C

NPI 1629136528 · Physician Assistant · Temple Hills, MD

Clifford Williams, PA C is a Physician Assistant provider in Temple Hills, MD (NPI 1629136528).

Provider details

NPI number: 1629136528
Entity type: Individual
Primary specialty: Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Credential: PA C
Sex: Male
Sole proprietor: No
License: C0000073 (MD)

Specialties & taxonomies

Physician AssistantPrimary363A00000XLicense C0000073 (MD)
Physician Assistants & Advanced Practice Nursing Providers

Profile Score

Detailed profile(90/100 index)

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

Registry tenure38% of score
19 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

6104 Old Branch Avenue

Temple Hills, MD 20748-2518

Phone: (301) 702-6100

Fax: (301) 702-6367

Street-level locationGet directions

More MD providers

Mailing address

Kaiser Permanente Mid Atlantic Permanente Medical Group

Rockville, MD 20852-4908

Enumerated: 2006-12-04
Last updated: 2007-07-08

Frequently asked questions

What is Clifford Williams's NPI number?: Clifford Williams's National Provider Identifier (NPI) is 1629136528, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Clifford Williams's specialty?: Clifford Williams is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
Where is Clifford Williams located?: Clifford Williams's practice location on file with NPPES is 6104 Old Branch Avenue, Temple Hills, MD 20748-2518.
What is Clifford Williams's phone number?: The practice phone number listed in the NPPES registry for Clifford Williams is (301) 702-6100.
Is Clifford Williams's NPI active?: Yes — Clifford Williams's NPI (1629136528) is active in the NPPES registry as of the last update on 2007-07-08.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.