Doctor profile · Federal record

Dr. Diana Nguyen Pham, MD

Family Medicine Physician (CMS: Family Practice) · Fountain Valley, CA

  • NPI 1013064005
  • Accepts Medicare
  • 26 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
18642 Bushard St
Fountain Valley, CA 927087209
(714) 883-0771
fax (714) 962-2321

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
November 4, 2009
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
California #A83986

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1013064005. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,646
Distinct HCPCS
10
Medicare allowed
$54,766
HCPCS Description Services Patients Avg allowed
J0696 Injection, ceftriaxone sodium, per 250 mg 272 47 $1
J2405 Injection, ondansetron hydrochloride, per 1 mg 168 14 $0
99214 Established patient office or other outpatient visit, 30-39 minutes 164 100 $139
96374 Injection of drug or substance into vein 116 72 $43
J7040 Infusion, normal saline solution, sterile (500 ml = 1 unit) 116 72 $1
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 115 72 $74
96375 Injection of additional new drug or substance into vein 97 58 $18
J1885 Injection, ketorolac tromethamine, per 15 mg 80 14 $1
J2930 Injection, methylprednisolone sodium succinate, up to 125 mg 72 50 $6
99203 New patient office or other outpatient visit, 30-44 minutes 40 40 $122

In context: peer comparison

Among 16 peers in this city , average services per provider: 78. This provider delivers 21× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,263
Transactions
14
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
MERZ NORTH AMERICA, INC. 11 $1,129.99
Galderma Laboratories, L.P. 2 $116.75
Paratek Pharmaceuticals, Inc. 1 $15.99

By nature of payment

Food and Beverage
$1,263

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
32
Patients
29
Total drug cost
$295
Drug Type Claims Patients Total cost
Azithromycin Generic 17 14 $108
Methylprednisolone Generic 15 15 $187

Frequently asked questions

Auto-generated from federal data
What is Dr. Diana Nguyen Pham's medical specialty?
Dr. Diana Nguyen Pham practices Family Medicine Physician in Fountain Valley, CA.
Where does Dr. Diana Nguyen Pham practice?
Dr. Diana Nguyen Pham practices at 18642 Bushard St, Fountain Valley, CA 927087209. Office phone: 7148830771.
What is Dr. Diana Nguyen Pham's NPI?
Dr. Diana Nguyen Pham's National Provider Identifier (NPI) is 1013064005, issued by NPPES.
Does Dr. Diana Nguyen Pham accept Medicare assignment?
Yes. Dr. Diana Nguyen Pham accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Diana Nguyen Pham commonly perform?
Top Medicare-reported procedures in 2023: Injection, ceftriaxone sodium, per 250 mg (HCPCS J0696); Injection, ondansetron hydrochloride, per 1 mg (HCPCS J2405); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.