Joy Phan
NPI 1225599434 · Family Medicine Physician · Fontana, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joy Phan is a Family Medicine Physician provider in Fontana, CA (NPI 1225599434).
Provider details
- NPI number
- 1225599434
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- PTL1011 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% 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 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 184 | 76 |
| Losartan Potassium | 79 | 32 |
| Levothyroxine Sodium | 77 | 28 |
| Rosuvastatin Calcium | 71 | 27 |
| Lisinopril | 70 | 29 |
| Amlodipine Besylate | 68 | 33 |
| Lisinopril/Hydrochlorothiazide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-03-29
- Last updated
- 2021-12-10
- Certified
- 2021-04-30
Frequently asked questions
- What is Joy Phan's NPI number?
- Joy Phan's National Provider Identifier (NPI) is 1225599434, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joy Phan's specialty?
- Joy Phan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joy Phan located?
- Joy Phan's practice location on file with NPPES is 17234 Valley Blvd., Fontana, CA 92335.
- What is Joy Phan's phone number?
- The practice phone number listed in the NPPES registry for Joy Phan is (909) 427-5085.
- Does Joy Phan accept Medicare?
- Joy Phan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joy Phan's NPI active?
- Yes — Joy Phan's NPI (1225599434) is active in the NPPES registry as of the last update on 2021-12-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.