Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Mamie Choy Williams, A.R.N.P.
Nurse Practitioner in Roseville, CA · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1386071264
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Registry record
Entity type Individual (Type 1)
Name Mrs. Mamie Choy Williams
Credential A.R.N.P.
Sex Female
Practice address 8 Medical Plaza Dr Ste 300, Roseville, CA, 95661
Phone (916) 782-5106
Enumeration date Oct 9, 2013
Last updated in NPPES Jun 16, 2025
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP60534589 (WA) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95024184 (CA) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1386071264 | Medicaid | WA | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Mamie Williams?
The National Provider Identifier (NPI) for Mamie Williams is 1386071264, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mamie Williams practice?
The practice location on file with NPPES is in Roseville, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Uma Gowda Hematology & Oncology Physician · Roseville, CA NPI 1013976570 Lynne Hackert Plastic Surgery Physician · Roseville, CA NPI 1952339111 Catherine Baker Plastic and Reconstructive Surgery Physician · Roseville, CA NPI 1376561936 Jaspreet Dhillon Hematology & Oncology Physician · Roseville, CA NPI 1720193006 Wiley Fowler Gynecologic Oncology Physician · Roseville, CA NPI 1508989468 Kathryn Opalenik Family Nurse Practitioner · Roseville, CA NPI 1114191988 Shohrat Annaberdyev Colon & Rectal Surgery Physician · Roseville, CA NPI 1386888147 Amy O'Donnell Acupuncturist · Roseville, CA NPI 1962753806
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-16.