Doctor profile · Federal record
Dr. Glenna Brennan, CRNP
Adult Health Nurse Practitioner (CMS: Nurse Practitioner) · Nurse Practitioner · Brunswick, ME
- NPI 1770052680
- Accepts Medicare
- MIPS 93.1 / 100 · 2023
- 9 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
121 Medical Center Dr Ste 3400
Brunswick, ME 040112675
(207) 406-7300
fax (207) 835-4736 - Additional location
-
175 US Route 1
Scarborough, ME 040749048
(207) 396-7700
Credentials & registration
- NPI registered
- November 2018 — 8 yrs on file
- Profile last updated
- February 11, 2026
- Year of graduation
- 2017 — 9 yrs since
- Specialty taxonomy
- 363LA2200X — NUCC code
- State license (1)
- Maine #CNP201435
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1770052680. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
194
Distinct HCPCS
4
Medicare allowed
$16,327
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 129 | 84 | $82 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 32 | 13 | $66 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 17 | 17 | $109 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 16 | 16 | $112 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 41. This provider delivers 4.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
492
Patients
194
Total drug cost
$572,062
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ozempic (Semaglutide) | Brand | 96 | 37 | $151,101 |
| Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) | Brand | 60 | 35 | $61,900 |
| Trulicity (Dulaglutide) | Brand | 55 | 21 | $116,830 |
| Mounjaro (Tirzepatide) | Brand | 41 | 0 | $54,489 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 37 | 19 | $532 |
| Novolog Flexpen (Insulin Aspart) | Brand | 27 | 18 | $31,887 |
| Nano 2nd Gen Pen Needle (Pen Needle, Diabetic) | Brand | 24 | 14 | $4,676 |
| Ultra-Fine Mini Pen Needle (Pen Needle, Diabetic) | Brand | 23 | 14 | $3,394 |
| Jardiance (Empagliflozin) | Brand | 22 | 12 | $38,997 |
| Novolog (Insulin Aspart) | Brand | 21 | 0 | $33,764 |
Hospital affiliations
Frequently asked questions
What is Dr. Glenna Brennan's medical specialty?
Dr. Glenna Brennan practices Adult Health Nurse Practitioner in Brunswick, ME.
Where does Dr. Glenna Brennan practice?
Dr. Glenna Brennan practices at 121 Medical Center Dr Ste 3400, Brunswick, ME 040112675. Office phone: 2074067300.
What is Dr. Glenna Brennan's NPI?
Dr. Glenna Brennan's National Provider Identifier (NPI) is 1770052680, issued by NPPES.
Does Dr. Glenna Brennan accept Medicare assignment?
Yes. Dr. Glenna Brennan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Glenna Brennan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.