Jina Williams, FNP
NPI 1225500259 · Adult Medicine Physician · Vista, CA
Enrolled with Medicare as Order and Referring Only - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jina Williams, FNP is a Adult Medicine Physician provider in Vista, CA (NPI 1225500259).
Provider details
- NPI number
- 1225500259
- Entity type
- Individual
- Primary specialty
- Adult Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- NP95020624 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
7 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 109 | 31 |
| Atorvastatin Calcium | 84 | 37 |
| Lisinopril | 74 | 30 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 47 | 16 |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 46 | — |
| Levothyroxine Sodium | 36 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$554 across 25 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-01-02
- Last updated
- 2023-07-07
- Certified
- 2023-07-07
Frequently asked questions
- What is Jina Williams's NPI number?
- Jina Williams's National Provider Identifier (NPI) is 1225500259, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jina Williams's specialty?
- Jina Williams is listed in the NPPES registry with a primary specialty of Adult Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jina Williams located?
- Jina Williams's practice location on file with NPPES is 134 Grapevine Rd, Vista, CA 92083-4004.
- What is Jina Williams's phone number?
- The practice phone number listed in the NPPES registry for Jina Williams is (760) 631-5000.
- Does Jina Williams accept Medicare?
- Jina Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jina Williams's NPI active?
- Yes — Jina Williams's NPI (1225500259) is active in the NPPES registry as of the last update on 2023-07-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.