Williams Clinic, Ltd
NPI 1376722108 · Internal Medicine Physician · Saint Louis, MO
Williams Clinic, Ltd is a Internal Medicine Physician organization in Saint Louis, MO (NPI 1376722108).
Provider details
- NPI number
- 1376722108
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Roy Williams, Physician(314) 261-4834
- License
- R9968 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
Mailing address
Registry dates
- Enumerated
- 2007-10-29
- Last updated
- 2011-09-11
Frequently asked questions
- What is Williams Clinic, Ltd's NPI number?
- Williams Clinic, Ltd's National Provider Identifier (NPI) is 1376722108, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Williams Clinic, Ltd?
- Williams Clinic, Ltd is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Williams Clinic, Ltd located?
- Williams Clinic, Ltd's practice location on file with NPPES is 3409 Union Blvd, Saint Louis, MO 63115-1127.
- What is Williams Clinic, Ltd's phone number?
- The practice phone number listed in the NPPES registry for Williams Clinic, Ltd is (314) 261-4834.
- Who is the authorized official for Williams Clinic, Ltd?
- The authorized official listed on Williams Clinic, Ltd's NPPES record is Roy Williams, Physician. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Williams Clinic, Ltd's NPI active?
- Yes — Williams Clinic, Ltd's NPI (1376722108) is active in the NPPES registry as of the last update on 2011-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.