Doctor profile · Federal record
Dr. Joan Ma, M.D.
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Internal Medicine Physician · Critical Care Medicine (Internal Medicine) Physician · Student in an Organized Health Care Education/Training Program · New York, NY
- NPI 1902285380
- Accepts Medicare
- MIPS 93.4 / 100 · 2023
- 11 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 4 locations .
- Primary practice
-
622 W 168Th St
New York, NY 100323720
(212) 305-2500 - Additional location
-
100 Grand St
New Britain, CT 060522016
(860) 224-5011 - Additional location
-
80 Seymour Street
Hartford, CT 06102
(860) 679-4988 - Additional location
-
55 Palmer Ave
Bronxville, NY 107083403
(914) 787-1000
Show 1 more location
Credentials & registration
- NPI registered
- May 2015 — 11 yrs on file
- Profile last updated
- August 7, 2019
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- New York #298232 · Connecticut #61345
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1902285380. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
256
Distinct HCPCS
3
Medicare allowed
$44,712
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 140 | 137 | $209 | |
99284 |
Emergency department visit with moderate level of medical decision making | 98 | 97 | $143 | |
99283 |
Emergency department visit with low level of medical decision making | 18 | 17 | $86 |
In context: peer comparison
Among 345 peers in New York Emergency Medicine Physician, average services per provider: 70. This provider delivers 3.7× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Joan Ma's medical specialty?
Dr. Joan Ma practices Emergency Medicine Physician in New York, NY.
Where does Dr. Joan Ma practice?
Dr. Joan Ma practices at 622 W 168Th St, New York, NY 100323720. Office phone: 2123052500.
What is Dr. Joan Ma's NPI?
Dr. Joan Ma's National Provider Identifier (NPI) is 1902285380, issued by NPPES.
Does Dr. Joan Ma accept Medicare assignment?
Yes. Dr. Joan Ma accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Joan Ma commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with low level of medical decision making (HCPCS 99283). Source: CMS Medicare Physician & Other Practitioners file.