Glenna Claire Brennan, CRNP
Adult Health Nurse Practitioner
Glenna Claire Brennan is an Adult Health Nurse Practitioner based in Brunswick, ME with over 9 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Glenna Claire Brennan, CRNP has practiced nursing for 9+ years, working in group practice. With 9+ years of experience, she has been practicing in the Brunswick area. Among her Medicare patients, common conditions include hypertension, diabetes, and high cholesterol (per CMS data). CMS MIPS quality score: 98.07/100 (2023).
At a glance
- Federal MIPS score higher than 24% of MIPS-scored doctors in Maine
- Virtual visits available — no app or travel required
Older · 101dNPPES updated 2026-02-11 · verify NPI on CMS · Verify license at Maine Board of Licensure in Medicine
Contact & Location
Practice Location
121 Medical Center Dr Ste 3400, Brunswick, ME 04011-2675
How Does This Doctor Compare?
MIPS Score
202398.07/100
Maine avg: 93.9 · US avg: 83.6
✓ Higher than most doctors nationally(+14.5 pts)
How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Generic Rx
↑ Higher = better34.7%
Maine avg: 82 · US avg: 82.8
⚠ Lower than most doctors nationally(-48.1 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
117
Unique beneficiaries
Standard volumePrescription Recipients
222
Patients prescribed
Prescriptions Written
795
Total claims
Total Medicare drug cost: $797k
Percentile rankings compared against 387 reporting peers in Maine.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Hypertension, Diabetes, and High Cholesterol.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+41%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+26%) — a focus area for this doctor
Conditions affecting emotional state, including depression and bipolar disorder
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↑ More patients than average (+14%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-5%) — less common here
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%↑ More patients than average (+10%) — a focus area for this doctor
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
Patient Reviews
No patient reviews yet. If you've seen Glenna Claire Brennan, your feedback helps other patients.
Review PolicyAll feedback is moderated before publishing. We verify reviewer identity where possible and enforce a one-review-per-provider policy. Full guidelines →
Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Board certified · Feb 10, 2026
Self-reported via NPPES
9 years in practice
Established
Definition to come...
Taxonomy: 363LA2200X
Virtual Adult Health Care With Glenna Claire Brennan
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Glenna Claire Brennan for blood pressure monitoring, diabetes check-ins, cholesterol management — no travel to Brunswick required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Glenna Claire Brennan
NPI records show Dr. Brennan as active with telehealth listed in Brunswick, ME. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (207) 406-7300.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Physician Comparator · HRSA HPSA. See Data Methodology.
Is this your profile?
Verify credentials, update practice details, and manage telehealth.
Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.
Contact Glenna Claire Brennan
Practice Location
121 Medical Center Dr Ste 3400, Brunswick, ME 04011-2675
Mailing Address
121 Medical Center Dr Ste 3400, Brunswick, ME 04011-2675
This is a provider directory. Contact the office directly to schedule appointments.
Related Providers