Johnny-An Pham, PA C
NPI 1457332504 · Physician Assistant · Los Angeles, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Johnny-An Pham, PA C is a Physician Assistant provider in Los Angeles, CA (NPI 1457332504).
Provider details
- NPI number
- 1457332504
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA C
- Sex
- Male
- Sole proprietor
- No
- License
- PA13536 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- 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 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 46 | 19 |
| Atorvastatin Calcium | 42 | 20 |
| Hydrochlorothiazide | 32 | 11 |
| Amlodipine Besylate | 30 | 11 |
| Metformin Hcl | 23 | — |
| Tamsulosin Hcl | 16 | — |
| Glipizide | 14 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$157 across 6 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
Registry dates
- Enumerated
- 2005-11-07
- Last updated
- 2013-02-05
Frequently asked questions
- What is Johnny-An Pham's NPI number?
- Johnny-An Pham's National Provider Identifier (NPI) is 1457332504, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Johnny-An Pham's specialty?
- Johnny-An Pham is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Johnny-An Pham located?
- Johnny-An Pham's practice location on file with NPPES is 1101 N Vermont Ave, Los Angeles, CA 90029.
- What is Johnny-An Pham's phone number?
- The practice phone number listed in the NPPES registry for Johnny-An Pham is (323) 665-4230.
- Does Johnny-An Pham accept Medicare?
- Johnny-An Pham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Johnny-An Pham's NPI active?
- Yes — Johnny-An Pham's NPI (1457332504) is active in the NPPES registry as of the last update on 2013-02-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.