Doctor profile · Federal record

Dr. Ma Koreena Jayne Tran, PA-C

Physician Assistant · Diamond Bar, CA

  • NPI 1841751815
  • Accepts Medicare
  • 10 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
1514 Valley Vista Dr
Diamond Bar, CA 917653929
(909) 860-1144
Additional location
150 W Foothill Blvd
San Dimas, CA 917731103
(909) 599-9925
Additional location
27522 Antonio Pkwy Ste P3
Ladera Ranch, CA 926942166
(949) 207-3786

Credentials & registration

NPPES · NUCC
NPI registered
March 2019 — 7 yrs on file
Profile last updated
January 5, 2023
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
California #56536

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841751815. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
349
Distinct HCPCS
7
Medicare allowed
$25,982
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 160 119 $83
99214 Established patient office or other outpatient visit, 30-39 minutes 81 60 $118
81002 Urinalysis, manual test 33 23 $3
36415 Insertion of needle into vein for collection of blood sample 25 23 $8
99442 Telephone medical discussion with physician, 11-20 minutes 19 17 $84
71046 X-ray of chest, 2 views 17 17 $28
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen 14 13 $50

In context: peer comparison

Among 3 peers in this city , average services per provider: 63. This provider delivers 5.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$203
Transactions
11
Manufacturers
8
Payer (manufacturer) Industry Txns Amount
Lilly USA, LLC 2 $45.79
GlaxoSmithKline, LLC. 2 $42.39
Novo Nordisk Inc 2 $29.63
PFIZER INC. 1 $23.86
ABBVIE INC. 1 $18.87
Esperion Therapeutics, Inc. 1 $14.63
AstraZeneca Pharmaceuticals LP 1 $14.07
Phathom Pharmaceuticals, Inc. 1 $13.53

By nature of payment

Food and Beverage
$203

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
624
Patients
503
Total drug cost
$6,811
Drug Type Claims Patients Total cost
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 89 84 $813
Ibuprofen Generic 66 52 $197
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 63 50 $2,337
Fluticasone Propionate Generic 56 36 $511
Azithromycin Generic 45 40 $182
Paxlovid (Eua) (Nirmatrelvir/Ritonavir) Brand 36 36 $383
Doxycycline Hyclate Generic 34 33 $325
Omeprazole Generic 33 17 $334
Ciprofloxacin Hcl Generic 32 31 $154
Amlodipine Besylate Generic 31 18 $125

Frequently asked questions

Auto-generated from federal data
What is Dr. Ma Koreena Jayne Tran's medical specialty?
Dr. Ma Koreena Jayne Tran practices Physician Assistant in Diamond Bar, CA.
Where does Dr. Ma Koreena Jayne Tran practice?
Dr. Ma Koreena Jayne Tran practices at 1514 Valley Vista Dr, Diamond Bar, CA 917653929. Office phone: 9098601144.
What is Dr. Ma Koreena Jayne Tran's NPI?
Dr. Ma Koreena Jayne Tran's National Provider Identifier (NPI) is 1841751815, issued by NPPES.
Does Dr. Ma Koreena Jayne Tran accept Medicare assignment?
Yes. Dr. Ma Koreena Jayne Tran accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ma Koreena Jayne Tran 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); Urinalysis, manual test (HCPCS 81002). Source: CMS Medicare Physician & Other Practitioners file.