Doctor profile · Federal record
Dr. Mary Jo Johnstone, M.D.
Emergency Medicine Physician · Mineola, NY
- NPI 1467717348
- MIPS 84.5 / 100 · 2023
- 14 yrs on file
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
259 1St St, Emergency Department
Mineola, NY 115013957
(516) 663-0333
Credentials & registration
- NPI registered
- July 2012 — 14 yrs on file
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- New York #265752
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1467717348. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
334
Distinct HCPCS
3
Medicare allowed
$55,379
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 157 | 155 | $209 | |
99284 |
Emergency department visit with moderate level of medical decision making | 130 | 130 | $143 | |
99283 |
Emergency department visit with low level of medical decision making | 47 | 46 | $86 |
In context: peer comparison
Among 12 peers in this city , average services per provider: 115. This provider delivers 2.9× the peer median.Frequently asked questions
What is Dr. Mary Jo Johnstone's medical specialty?
Dr. Mary Jo Johnstone practices Emergency Medicine Physician in Mineola, NY.
Where does Dr. Mary Jo Johnstone practice?
Dr. Mary Jo Johnstone practices at 259 1St St, Mineola, NY 115013957. Office phone: 5166630333.
What is Dr. Mary Jo Johnstone's NPI?
Dr. Mary Jo Johnstone's National Provider Identifier (NPI) is 1467717348, issued by NPPES.
What procedures does Dr. Mary Jo Johnstone 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.