Doctor profile · Federal record
Dr. Mary Brennan, APRN
Acute Care Nurse Practitioner (CMS: Nurse Practitioner) · Farmington, CT
- NPI 1497855274
- Accepts Medicare
- MIPS 77.5 / 100 · 2023
- 25 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
263 Farmington Ave
Farmington, CT 060302202
(860) 679-3107
fax (860) 679-1843
Credentials & registration
- NPI registered
- September 2006 — 20 yrs on file
- Profile last updated
- May 6, 2013
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 363LA2100X — NUCC code
- State license (1)
- Connecticut #002561
- Medicaid
- CT #1497855274
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1497855274. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
217
Distinct HCPCS
6
Medicare allowed
$18,796
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 61 | 48 | $71 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 59 | 58 | $117 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 43 | 32 | $45 | |
99221 |
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 22 | 22 | $75 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 20 | 16 | $107 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 12 | 12 | $156 |
In context: peer comparison
Among 12 peers in Farmington Acute Care Nurse Practitioner, average services per provider: 51. This provider delivers 4.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
30
Patients
30
Total drug cost
$381
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Morphine Sulfate | Generic | 16 | 16 | $201 |
| Haloperidol Lactate | Generic | 14 | 14 | $179 |
Frequently asked questions
What is Dr. Mary Brennan's medical specialty?
Dr. Mary Brennan practices Acute Care Nurse Practitioner in Farmington, CT.
Where does Dr. Mary Brennan practice?
Dr. Mary Brennan practices at 263 Farmington Ave, Farmington, CT 060302202. Office phone: 8606793107.
What is Dr. Mary Brennan's NPI?
Dr. Mary Brennan's National Provider Identifier (NPI) is 1497855274, issued by NPPES.
Does Dr. Mary Brennan accept Medicare assignment?
Yes. Dr. Mary Brennan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Brennan commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231). Source: CMS Medicare Physician & Other Practitioners file.