Nathan Williams
NPI 1548345473 · Adult Medicine Physician · Thermal, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Williams is a Adult Medicine Physician provider in Thermal, CA (NPI 1548345473).
Provider details
- NPI number
- 1548345473
- Entity type
- Individual
- Primary specialty
- Adult Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A79720 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Omeprazole | 26 |
| Atorvastatin Calcium | 22 |
| Levothyroxine Sodium | 19 |
| Amlodipine Besylate | 15 |
| Sertraline Hcl | 15 |
| Metformin Hcl | 14 |
| Nortriptyline Hcl | 12 |
| Tamsulosin Hcl | 12 |
| Hydrochlorothiazide | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is Nathan Williams's NPI number?
- Nathan Williams's National Provider Identifier (NPI) is 1548345473, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Williams's specialty?
- Nathan Williams is listed in the NPPES registry with a primary specialty of Adult Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nathan Williams located?
- Nathan Williams's practice location on file with NPPES is 66735 Martinez St, Thermal, CA 92274-9007.
- What is Nathan Williams's phone number?
- The practice phone number listed in the NPPES registry for Nathan Williams is (800) 717-4476.
- Does Nathan Williams accept Medicare?
- Nathan Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Williams's NPI active?
- Yes — Nathan Williams's NPI (1548345473) 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.