Doctor profile · Federal record
Dr. Mary Callahan, ARNP
Family Nurse Practitioner (CMS: Nurse Practitioner) · Winter Park, FL
- NPI 1831151638
- Accepts Medicare
- MIPS 78.0 / 100 · 2023
- 22 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1925 Mizell Ave, Suite 201
Winter Park, FL 327924106
(407) 628-0448 - Mailing address
-
1926 Lake Sue Dr
Orlando, FL 328031657
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- June 11, 2010
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 363LF0000X — NUCC code
- State license (1)
- Florida #3060172
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1831151638. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
456
Distinct HCPCS
7
Medicare allowed
$45,200
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 171 | 163 | $149 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 70 | 45 | $102 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 69 | 49 | $43 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 68 | 49 | $68 | |
G0316 |
Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th | 37 | 28 | $26 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 27 | 27 | $112 | |
99221 |
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 14 | 12 | $72 |
In context: peer comparison
Among 19 peers in this city , average services per provider: 79. This provider delivers 5.8× the peer median.Open Payments
Industry payments received
All-time total
$120
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Regeneron Healthcare Solutions, Inc. | 1 | $120.18 |
By nature of payment
Frequently asked questions
What is Dr. Mary Callahan's medical specialty?
Dr. Mary Callahan practices Family Nurse Practitioner in Winter Park, FL.
Where does Dr. Mary Callahan practice?
Dr. Mary Callahan practices at 1925 Mizell Ave, Winter Park, FL 327924106. Office phone: 4076280448.
What is Dr. Mary Callahan's NPI?
Dr. Mary Callahan's National Provider Identifier (NPI) is 1831151638, issued by NPPES.
Does Dr. Mary Callahan accept Medicare assignment?
Yes. Dr. Mary Callahan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Callahan commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231). Source: CMS Medicare Physician & Other Practitioners file.