Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Glenna Claire Brennan, CRNP

Individual provider Nurse Practitioner · NPI 1770052680

Glenna Claire Brennan, CRNP is a Nurse Practitioner in Brunswick, Maine. Qualified in 2017, 9 years ago. Practices with Mainehealth, a 2,615-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Maine.

Years since qualifying
9
Licensed in
ME
In the registry since
2018
Specialties on file
2
What do these letters mean?
CRNP — Certified Registered Nurse Practitioner
The title Pennsylvania and some other states use for a nurse practitioner.

See every abbreviation used in this directory →

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Practice location Address checks out

121 Medical Center Dr Ste 3400
Brunswick, ME 04011-2675
Phone: (207) 406-7300
Fax: (207) 835-4736
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 175 Us Route 1, Scarborough, ME 04074-9048 — (207) 396-7700

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence CNP201435 (ME)
Nurse Practitioner Taxonomy 363L00000X · Licence CNP201435 (ME)

Record details

NPI number1770052680
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNP
Sole proprietorNo
NPI enumeratedNovember 20, 2018
Last updated in NPPESFebruary 11, 2026
Certification dateFebruary 11, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Mainehealth — 2615 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients98
Services billed 258 a service is one billed item, such as a visit, a test or a procedure
Average patient age67

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mainehealth

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2615 clinicians in the practice; 12 are shown here.

Other providers in Brunswick