Ali Williams, PA-C
NPI 1902182090 · Physician Assistant · Hemet, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ali Williams, PA-C is a Physician Assistant provider in Hemet, CA (NPI 1902182090).
Provider details
- NPI number
- 1902182090
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 yrs in NPPES registry
- Profile completeness38% of score
83% 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 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 189 | 22 |
| Paliperidone Palmitatebrand: Invega Sustenna | 153 | 13 |
| Olanzapine | 121 | 12 |
| Fluoxetine Hcl | 115 | 14 |
| Benztropine Mesylate | 105 | 16 |
| Hydroxyzine Pamoate | 103 | 15 |
| Divalproex Sodiumbrand: Divalproex Sodium Er | 97 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-11-02
- Last updated
- 2024-03-08
- Certified
- 2024-03-08
Frequently asked questions
- What is Ali Williams's NPI number?
- Ali Williams's National Provider Identifier (NPI) is 1902182090, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ali Williams's specialty?
- Ali Williams is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ali Williams located?
- Ali Williams's practice location on file with NPPES is 650 N State St, Hemet, CA 92543-2960.
- What is Ali Williams's phone number?
- The practice phone number listed in the NPPES registry for Ali Williams is (951) 791-3300.
- Does Ali Williams accept Medicare?
- Ali Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ali Williams's NPI active?
- Yes — Ali Williams's NPI (1902182090) is active in the NPPES registry as of the last update on 2024-03-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.