Doctor profile · Federal record

Dr. Marc Ma, M.D.

Family Medicine Physician (CMS: Family Practice) · Family Medicine Physician · Rowland Heights, CA

  • NPI 1740500313
  • Accepts Medicare
  • 28 yrs in practice
  • Licensed in 2 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1818 Sierra Leone Ave Ste E
Rowland Heights, CA 917483696
(626) 600-8066

Credentials & registration

NPPES · NUCC
NPI registered
June 2010 — 16 yrs on file
Profile last updated
July 14, 2022
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State licenses (2)
California #A122326 · Texas #BP10036754

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1740500313. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
135
Distinct HCPCS
4
Medicare allowed
$19,404
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 84 37 $141
99204 New patient office or other outpatient visit, 45-59 minutes 23 23 $183
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 16 16 $144
99497 Advance care planning, first 30 minutes 12 12 $90

In context: peer comparison

Among 4 peers in this city , average services per provider: 178. This provider delivers 0.8× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$467
Transactions
8
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Amgen Inc. 8 $466.76

By nature of payment

Food and Beverage
$467

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
808
Patients
263
Total drug cost
$16,066
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 235 76 $2,868
Amlodipine Besylate Generic 82 28 $764
Losartan Potassium Generic 69 22 $880
Alendronate Sodium Generic 56 20 $729
Fluticasone Propionate Generic 56 23 $719
Levothyroxine Sodium Generic 51 14 $660
Metformin Hcl Generic 39 15 $298
Tamsulosin Hcl Generic 37 12 $751
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 32 11 $1,597
Gabapentin Generic 31 14 $297

Frequently asked questions

Auto-generated from federal data
What is Dr. Marc Ma's medical specialty?
Dr. Marc Ma practices Family Medicine Physician in Rowland Heights, CA.
Where does Dr. Marc Ma practice?
Dr. Marc Ma practices at 1818 Sierra Leone Ave Ste E, Rowland Heights, CA 917483696. Office phone: 6266008066.
What is Dr. Marc Ma's NPI?
Dr. Marc Ma's National Provider Identifier (NPI) is 1740500313, issued by NPPES.
Does Dr. Marc Ma accept Medicare assignment?
Yes. Dr. Marc Ma accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marc Ma commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.