Roger Williams, MD
NPI 1982709481 · Blood Banking & Transfusion Medicine Physician · Carmel By the Sea, CA
Roger Williams, MD is a Blood Banking & Transfusion Medicine Physician provider in Carmel By the Sea, CA (NPI 1982709481).
Provider details
- NPI number
- 1982709481
- Entity type
- Individual
- Primary specialty
- Blood Banking & Transfusion Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- C30744 (CA)
Specialties & taxonomies
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
- 2006-09-13
- Last updated
- 2025-09-11
Frequently asked questions
- What is Roger Williams's NPI number?
- Roger Williams's National Provider Identifier (NPI) is 1982709481, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Roger Williams's specialty?
- Roger Williams is listed in the NPPES registry with a primary specialty of Blood Banking & Transfusion Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Roger Williams located?
- Roger Williams's practice location on file with NPPES is Carpenter St 2 Ne of Third, Carmel By the Sea, CA 93921-2402.
- What is Roger Williams's phone number?
- The practice phone number listed in the NPPES registry for Roger Williams is (831) 622-0991.
- Is Roger Williams's NPI active?
- Yes — Roger Williams's NPI (1982709481) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.