Doctor profile · Federal record
Dr. Christine Ahn, MD
Emergency Medicine Physician · Stony Brook, NY
- NPI 1336307461
- 18 yrs on file
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
Stony Brook University Hospital, Dept of Emergency Medicine
Stony Brook, NY 117947148
(631) 444-2478
fax (631) 444-3919
Credentials & registration
- NPI registered
- May 2008 — 18 yrs on file
- Profile last updated
- July 13, 2010
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- New York #257406
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1336307461. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
442
Distinct HCPCS
5
Medicare allowed
$81,533
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 307 | 306 | $205 | |
99284 |
Emergency department visit with moderate level of medical decision making | 98 | 98 | $140 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 14 | 14 | $199 | |
99283 |
Emergency department visit with low level of medical decision making | 12 | 11 | $84 | |
99238 |
Hospital discharge day management, 30 minutes or less | 11 | 11 | $93 |
In context: peer comparison
Among 35 peers in Stony Brook Emergency Medicine Physician, average services per provider: 105. This provider delivers 4.2× the peer median.Frequently asked questions
What is Dr. Christine Ahn's medical specialty?
Dr. Christine Ahn practices Emergency Medicine Physician in Stony Brook, NY.
Where does Dr. Christine Ahn practice?
Dr. Christine Ahn practices at Stony Brook University Hospital, Stony Brook, NY 117947148. Office phone: 6314442478.
What is Dr. Christine Ahn's NPI?
Dr. Christine Ahn's National Provider Identifier (NPI) is 1336307461, issued by NPPES.
What procedures does Dr. Christine Ahn 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); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.