David Williams, MD
NPI 1922186816 · Cardiovascular Disease Physician · Vallejo, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Williams, MD is a Cardiovascular Disease Physician provider in Vallejo, CA (NPI 1922186816).
Provider details
- NPI number
- 1922186816
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G17557 (CA)
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
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
- 2006-11-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is David Williams's NPI number?
- David Williams's National Provider Identifier (NPI) is 1922186816, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Williams's specialty?
- David Williams is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is David Williams located?
- David Williams's practice location on file with NPPES is 975 Sereno Dr, Vallejo, CA 94589-2441.
- What is David Williams's phone number?
- The practice phone number listed in the NPPES registry for David Williams is (707) 651-1000.
- Does David Williams accept Medicare?
- David Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Williams's NPI active?
- Yes — David Williams's NPI (1922186816) 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.