Active NPI
Roger Anson Williams, MD
- Blood Banking & Transfusion Medicine Physician
- Carmel by the Sea, CA
National Provider Identifier
1982709481
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Blood Banking & Transfusion Medicine Physician
- License
- C30744
- Practice address
- Carpenter St 2 NE of Third
Carmel by the Sea, CA 93921-2402 - Phone
- (831) 622-0991
- NPI assigned
- Sep 13, 2006
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Blood Banking & Transfusion Medicine Physician | 207ZB0001X | C30744 | CA | Primary |
| Pediatric Pathology Physician | 207ZP0213X | C30744 | CA |
Addresses
Primary practice location
Carpenter St 2 NE of Third
Carmel by the Sea, CA 93921-2402
Mailing address
PO Box 2402
Carmel by the Sea, CA 93921-2402
Phone (831) 622-0991
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| C30744 | CA | MD | Pediatric Pathology Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1158105600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1982709481",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 2402",
"city": "CARMEL BY THE SEA",
"state": "CA",
"postal_code": "939212402",
"telephone_number": "831-622-0991"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "CARPENTER ST 2 NE OF THIRD",
"city": "CARMEL BY THE SEA",
"state": "CA",
"postal_code": "939212402",
"telephone_number": "831-622-0991"
}
],
"practiceLocations": [],
"basic": {
"last_name": "WILLIAMS",
"first_name": "ROGER",
"middle_name": "ANSON",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-09-13",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "207ZB0001X",
"taxonomy_group": "",
"desc": "Pathology, Blood Banking & Transfusion Medicine",
"state": "CA",
"license": "C30744",
"primary": true
},
{
"code": "207ZP0213X",
"taxonomy_group": "",
"desc": "Pathology, Pediatric Pathology",
"state": "CA",
"license": "C30744",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Carmel by the Sea, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.