Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Marissa Brennan, PA-C

Individual provider Medical Physician Assistant · NPI 1902324205

Marissa Brennan, PA-C is a Physician Assistant in New London, Connecticut. Qualified in 2017, 9 years ago. Practices with Middlesex Hospital, a 229-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Connecticut and Rhode Island.

Years since qualifying
9
Licensed in
CT, RI
In the registry since
2017
Specialties on file
3
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

365 Montauk Ave
New London, CT 06320-4700
Phone: (860) 271-4364
Fax: (860) 444-5114
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 25 Wells St, Westerly, RI 02891-2922 — (401) 596-6000

Specialties & licences

Medical Physician Assistant (primary) Taxonomy 363AM0700X · Licence 3987 (CT)
Medical Physician Assistant Taxonomy 363AM0700X · Licence PA01528 (RI)
Physician Assistant Taxonomy 363A00000X

Record details

NPI number1902324205
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA-C
Sole proprietorNo
NPI enumeratedSeptember 7, 2017
Last updated in NPPESSeptember 4, 2025
Certification dateSeptember 4, 2025

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Middlesex Hospital — 229 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in New London