Hoa Phan, MD
NPI 1255869566 · Family Medicine Physician · Westminster, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hoa Phan, MD is a Family Medicine Physician provider in Westminster, CA (NPI 1255869566).
Provider details
- NPI number
- 1255869566
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A180758 (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
9 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 · 76 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 230 | 74 |
| Amlodipine Besylate | 199 | 65 |
| Famotidine | 184 | 59 |
| Fluticasone Propionate | 155 | 58 |
| Losartan Potassium | 133 | 42 |
| Tamsulosin Hcl | 125 | 37 |
| Metformin Hcl | 107 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$911 across 26 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
Additional practice locations (2)
- 200 S Wells Rd Ste 100Ventura, CA 93004-1378Phone: (805) 647-6322Fax: (805) 647-7164
- 15355 Brookhurst St Ste 102Westminster, CA 92683-7071Phone: (801) 433-7212
Registry dates
- Enumerated
- 2017-05-31
- Last updated
- 2025-09-14
- Certified
- 2025-09-14
Frequently asked questions
- What is Hoa Phan's NPI number?
- Hoa Phan's National Provider Identifier (NPI) is 1255869566, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hoa Phan's specialty?
- Hoa Phan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Hoa Phan located?
- Hoa Phan's practice location on file with NPPES is 9356 Westminster Blvd, Westminster, CA 92683-4704.
- What is Hoa Phan's phone number?
- The practice phone number listed in the NPPES registry for Hoa Phan is (714) 621-5683.
- Does Hoa Phan accept Medicare?
- Hoa Phan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hoa Phan's NPI active?
- Yes — Hoa Phan's NPI (1255869566) is active in the NPPES registry as of the last update on 2025-09-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.