Diana Mokaya, M.D.
NPI 1023458528 · Family Medicine Physician · Union City, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Mokaya, M.D. is a Family Medicine Physician provider in Union City, CA (NPI 1023458528).
Provider details
- NPI number
- 1023458528
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A133542 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
12 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- 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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Metformin Hcl | 19 |
| Amlodipine Besylate | 17 |
| Lisinopril | 16 |
| Losartan Potassium | 16 |
| Atorvastatin Calcium | 15 |
| Hydrochlorothiazide | 12 |
| Gabapentin | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$33 across 1 record (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
Additional practice locations (2)
- 16110 E 14th StAshland, CA 94578-3002Phone: (510) 471-5880
- 22331 Mission BlvdHayward, CA 94541-3911Phone: (510) 471-5880
Registry dates
- Enumerated
- 2013-06-28
- Last updated
- 2026-05-05
- Certified
- 2026-05-05
Frequently asked questions
- What is Diana Mokaya's NPI number?
- Diana Mokaya's National Provider Identifier (NPI) is 1023458528, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Mokaya's specialty?
- Diana Mokaya is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Mokaya located?
- Diana Mokaya's practice location on file with NPPES is 33255 9th St, Union City, CA 94587-2137.
- What is Diana Mokaya's phone number?
- The practice phone number listed in the NPPES registry for Diana Mokaya is (510) 471-5880.
- Does Diana Mokaya accept Medicare?
- Diana Mokaya is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Mokaya's NPI active?
- Yes — Diana Mokaya's NPI (1023458528) is active in the NPPES registry as of the last update on 2026-05-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.