William Rives, MD
NPI 1003832312 · Hospitalist Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Rives, MD is a Hospitalist Physician provider in Saint Louis, MO (NPI 1003832312).
Provider details
- NPI number
- 1003832312
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 118702 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2006-07-14
- Last updated
- 2025-04-17
Frequently asked questions
- What is William Rives's NPI number?
- William Rives's National Provider Identifier (NPI) is 1003832312, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Rives's specialty?
- William Rives is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is William Rives located?
- William Rives's practice location on file with NPPES is 1 Childrens Pl, Saint Louis, MO 63110-1002.
- What is William Rives's phone number?
- The practice phone number listed in the NPPES registry for William Rives is (314) 454-2076.
- Does William Rives accept Medicare?
- William Rives is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Rives's NPI active?
- Yes — William Rives's NPI (1003832312) is active in the NPPES registry as of the last update on 2025-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.