Doctor profile · Federal record
Dr. Janet Ma, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Pediatrics Physician · Santa Monica, CA
- NPI 1164698098
- Accepts Medicare
- 18 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1245 16Th St, Suite 125
Santa Monica, CA 904041235
(310) 315-8900
fax (310) 315-8902 - Mailing address
-
1245 16Th St Ste 125
Santa Monica, CA 904041240
Credentials & registration
- NPI registered
- April 2008 — 18 yrs on file
- Profile last updated
- February 3, 2014
- Year of graduation
- 2008 — 18 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A108822
- Medicaid
- CA #1164698098
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1164698098. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
354
Distinct HCPCS
8
Medicare allowed
$28,013
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 124 | 73 | $98 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 81 | 55 | $72 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 55 | 55 | $63 | |
G0008 |
Administration of influenza virus vaccine | 31 | 29 | $32 | |
90662 |
Influenza vaccine split virus, preservative free | 25 | 25 | $69 | |
81002 |
Urinalysis, manual test | 14 | 11 | $3 | |
90677 |
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 12 | 12 | $280 | |
G0009 |
Administration of pneumococcal vaccine | 12 | 12 | $33 |
In context: peer comparison
Among 58 peers in Santa Monica Internal Medicine Physician, average services per provider: 97. This provider delivers 3.6× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
729
Patients
200
Total drug cost
$44,815
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 166 | 54 | $2,304 |
| Amlodipine Besylate | Generic | 85 | 29 | $936 |
| Losartan Potassium | Generic | 74 | 22 | $1,202 |
| Levothyroxine Sodium | Generic | 64 | 18 | $1,780 |
| Alendronate Sodium | Generic | 50 | 16 | $511 |
| Metformin Hcl | Generic | 50 | 16 | $714 |
| Fluticasone Propionate | Generic | 38 | 18 | $740 |
| Rosuvastatin Calcium | Generic | 37 | 14 | $1,319 |
| Diclofenac Sodium | Generic | 27 | 13 | $971 |
| Lisinopril | Generic | 27 | 0 | $224 |
Hospital affiliations
Frequently asked questions
What is Dr. Janet Ma's medical specialty?
Dr. Janet Ma practices Internal Medicine Physician in Santa Monica, CA.
Where does Dr. Janet Ma practice?
Dr. Janet Ma practices at 1245 16Th St, Santa Monica, CA 904041235. Office phone: 3103158900.
What is Dr. Janet Ma's NPI?
Dr. Janet Ma's National Provider Identifier (NPI) is 1164698098, issued by NPPES.
Does Dr. Janet Ma accept Medicare assignment?
Yes. Dr. Janet Ma accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Janet Ma commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.