ROGER ANSON WILLIAMS MD
NPI 1982709481
Pathology - Blood Banking & Transfusion Medicine in Carmel By The Sea, CA

Q: What is Roger Williams's NPI number?

The NPI number for Roger Williams is 1982709481. It was assigned to this individual provider in the NPPES registry on September 13, 2006.

Q: What is Roger Williams's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Blood Banking & Transfusion Medicine, with taxonomy code 207ZB0001X.

Q: When was this NPI record last updated?

The NPPES record for Roger Williams was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since September 13, 2006

CARPENTER ST 2 NE OF THIRD, CARMEL BY THE SEA, CA 93921(831) 622-0991 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Roger Anson Williams Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ROGER ANSON WILLIAMS MD (NPI 1982709481) is an individual blood banking & transfusion medicine provider in Carmel By The Sea, California, licensed in California (C30744) and active in the NPI registry since September 2006.

NPPES Registry Identity

NPI1982709481

Entity TypeIndividualMale

Primary Taxonomy207ZB0001X

Provider Legal NameROGER ANSON WILLIAMSCredential: MD

Location AddressCARPENTER ST 2 NE OF THIRDCarmel By The Sea, CA 93921-2402

Mailing AddressPo Box 2402Carmel By The Sea, CA 93921-2402 · (831) 622-0991

Phone(831) 622-0991

Sole ProprietorNo

Enumeration DateSeptember 13, 2006

Last NPPES UpdateSeptember 11, 2025

✔ NPI 1982709481 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPathology · Blood Banking & Transfusion MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207ZB0001X

License✔ Licensed in CA · C30744

Definition

A physician who specializes in blood banking/transfusion medicine is responsible for the maintenance of an adequate blood supply, blood donor and patient-recipient safety and appropriate blood utilization. Pre-transfusion compatibility testing and antibody testing assure that blood transfusions, when indicated, are as safe as possible. This physician directs the preparation and safe use of specially prepared blood components, including red blood cells, white blood cells, platelets and plasma constituents, and marrow or stem cells for transplantation.

Also ListedPathology · Pediatric PathologyTaxonomy 207ZP0213X · License C30744 (CA)

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Roger Williams's NPI number?

The NPI number for Roger Williams is 1982709481. It was assigned to this individual provider in the NPPES registry on September 13, 2006.

Where is Roger Williams located?

Roger Williams practices at Carpenter St 2 NE Of Third, Carmel By The Sea, CA 93921. The listed phone number is (831) 622-0991.

What is Roger Williams's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Blood Banking & Transfusion Medicine, with taxonomy code 207ZB0001X.

When was this NPI record last updated?

The NPPES record for Roger Williams was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.