Glenna Brennan, CRNP
NPI 1770052680 · Adult Health Nurse Practitioner · Brunswick, ME
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Glenna Brennan, CRNP is a Adult Health Nurse Practitioner provider in Brunswick, ME (NPI 1770052680).
Provider details
- NPI number
- 1770052680
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNP
- Sex
- Female
- Sole proprietor
- No
- License
- CNP201435 (ME)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
244 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 165 | $85 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 54 | $30 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 13 | $123 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 12 | $113 |
Typical Medicare-allowed amounts for these services range $30–$123 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Semaglutidebrand: Ozempic | 341 | 73 |
| Tirzepatidebrand: Mounjaro | 156 | 37 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 114 | 47 |
| Metformin Hclbrand: Metformin Hcl Er | 82 | 24 |
| Dulaglutidebrand: Trulicity | 56 | 15 |
| Insulin Aspartbrand: Novolog Flexpen | 49 |
Practice location
Mailing address
Additional practice locations (1)
- 175 US Route 1Scarborough, ME 04074-9048Phone: (207) 396-7700
Registry dates
- Enumerated
- 2018-11-20
- Last updated
- 2026-02-11
- Certified
- 2026-02-11
Frequently asked questions
- What is Glenna Brennan's NPI number?
- Glenna Brennan's National Provider Identifier (NPI) is 1770052680, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Glenna Brennan's specialty?
- Glenna Brennan is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Glenna Brennan located?
- Glenna Brennan's practice location on file with NPPES is 121 Medical Center Dr Ste 3400, Brunswick, ME 04011-2675.
- What is Glenna Brennan's phone number?
- The practice phone number listed in the NPPES registry for Glenna Brennan is (207) 406-7300.
- Does Glenna Brennan accept Medicare?
- Glenna Brennan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Glenna Brennan's NPI active?
- Yes — Glenna Brennan's NPI (1770052680) is active in the NPPES registry as of the last update on 2026-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.