Diana Tran
NPI 1912571829 · Family Medicine Physician · Milpitas, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Tran is a Family Medicine Physician provider in Milpitas, CA (NPI 1912571829).
Provider details
- NPI number
- 1912571829
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- Yes
- License
- 125079548 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
5 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
4 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 · 3 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Lamotrigine | 22 |
| Amlodipine Besylate | 16 |
| Atorvastatin Calcium | 13 |
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 no Part D record, 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.
$109 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 (3)
- 31700 Temecula PkwyTemecula, CA 92592-5896Phone: (951) 331-2200
- 3249 Oak Park AveBerwyn, IL 60402-3429Phone: (708) 783-9100
- 5215 N California Ave Ste 602Chicago, IL 60625-8564Phone: (773) 293-8824Fax: (773) 878-3627
Registry dates
- Enumerated
- 2021-05-14
- Last updated
- 2025-12-15
- Certified
- 2025-12-15
Frequently asked questions
- What is Diana Tran's NPI number?
- Diana Tran's National Provider Identifier (NPI) is 1912571829, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Tran's specialty?
- Diana Tran is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Tran located?
- Diana Tran's practice location on file with NPPES is 100 N Milpitas Blvd, Milpitas, CA 95035-4499.
- What is Diana Tran's phone number?
- The practice phone number listed in the NPPES registry for Diana Tran is (800) 478-8837.
- Does Diana Tran accept Medicare?
- Diana Tran is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Tran's NPI active?
- Yes — Diana Tran's NPI (1912571829) is active in the NPPES registry as of the last update on 2025-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.