Diane Pham, MD
NPI 1861540890 · Family Medicine Physician · Anaheim, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diane Pham, MD is a Family Medicine Physician provider in Anaheim, CA (NPI 1861540890).
Provider details
- NPI number
- 1861540890
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A93131 (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
19 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 · 86 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 433 | 207 |
| Amlodipine Besylate | 263 | 113 |
| Losartan Potassium | 233 | 98 |
| Rosuvastatin Calcium | 177 | 86 |
| Levothyroxine Sodium | 170 | 76 |
| Lisinopril | 168 | 73 |
| Hydrocodone/Acetaminophen |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-08
- Last updated
- 2021-12-03
Frequently asked questions
- What is Diane Pham's NPI number?
- Diane Pham's National Provider Identifier (NPI) is 1861540890, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Pham's specialty?
- Diane Pham is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Diane Pham located?
- Diane Pham's practice location on file with NPPES is 441 N Lakeview Ave, Anaheim, CA 92807-3028.
- What is Diane Pham's phone number?
- The practice phone number listed in the NPPES registry for Diane Pham is (888) 988-2800.
- Does Diane Pham accept Medicare?
- Diane Pham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diane Pham's NPI active?
- Yes — Diane Pham's NPI (1861540890) is active in the NPPES registry as of the last update on 2021-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.