Doctor profile · Federal record
Dr. Diane Pham
Family Nurse Practitioner (CMS: Nurse Practitioner) · Santa Ana, CA
- NPI 1538799820
- Accepts Medicare
- MIPS 84.4 / 100 · 2023
- 5 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
3403 S Main St Unit K
Santa Ana, CA 927074325
(714) 425-4266
Credentials & registration
- NPI registered
- January 2020 — 6 yrs on file
- Profile last updated
- January 6, 2023
- Year of graduation
- 2021 — 5 yrs since
- Specialty taxonomy
- 363LF0000X — NUCC code
- State license (1)
- California #95018390
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1538799820. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
93
Distinct HCPCS
3
Medicare allowed
$7,608
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 51 | 49 | $83 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 27 | 27 | $118 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 15 | 15 | $14 |
In context: peer comparison
Among 9 peers in this city , average services per provider: 214. This provider delivers 0.4× the peer median.Open Payments
Industry payments received
All-time total
$120
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen Inc. | 1 | $120.39 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
811
Patients
574
Total drug cost
$17,344
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 140 | 88 | $2,819 |
| Atorvastatin Calcium | Generic | 120 | 85 | $1,994 |
| Amlodipine Besylate | Generic | 89 | 61 | $797 |
| Losartan Potassium | Generic | 76 | 51 | $1,190 |
| Rosuvastatin Calcium | Generic | 57 | 40 | $2,609 |
| Lisinopril | Generic | 46 | 34 | $429 |
| Gabapentin | Generic | 39 | 30 | $1,155 |
| Trazodone Hcl | Generic | 36 | 24 | $502 |
| Zolpidem Tartrate | Generic | 36 | 29 | $285 |
| Omeprazole | Generic | 34 | 24 | $627 |
Hospital affiliations
Frequently asked questions
What is Dr. Diane Pham's medical specialty?
Dr. Diane Pham practices Family Nurse Practitioner in Santa Ana, CA.
Where does Dr. Diane Pham practice?
Dr. Diane Pham practices at 3403 S Main St Unit K, Santa Ana, CA 927074325. Office phone: 7144254266.
What is Dr. Diane Pham's NPI?
Dr. Diane Pham's National Provider Identifier (NPI) is 1538799820, issued by NPPES.
Does Dr. Diane Pham accept Medicare assignment?
Yes. Dr. Diane Pham accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Diane Pham commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000). Source: CMS Medicare Physician & Other Practitioners file.