Yen Phan, D.O.
NPI 1891173142 · Student in an Organized Health Care Education/Training Program · Fontana, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yen Phan, D.O. is a Student in an Organized Health Care Education/Training Program provider in Fontana, CA (NPI 1891173142).
Provider details
- NPI number
- 1891173142
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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 · 58 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 258 | 179 |
| Amlodipine Besylate | 127 | 80 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 96 | 58 |
| Rosuvastatin Calcium | 96 | 70 |
| Losartan Potassium | 96 | 58 |
| Meloxicam | 92 | 64 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-05-07
- Last updated
- 2021-12-02
- Certified
- 2021-12-02
Frequently asked questions
- What is Yen Phan's NPI number?
- Yen Phan's National Provider Identifier (NPI) is 1891173142, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yen Phan's specialty?
- Yen Phan is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Yen Phan located?
- Yen Phan's practice location on file with NPPES is 17234 Valley Blvd, Fontana, CA 92335.
- What is Yen Phan's phone number?
- The practice phone number listed in the NPPES registry for Yen Phan is (909) 427-5000.
- Does Yen Phan accept Medicare?
- Yen Phan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yen Phan's NPI active?
- Yes — Yen Phan's NPI (1891173142) is active in the NPPES registry as of the last update on 2021-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.