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

Matthew E Nilsson, MD

Individual provider Psychiatry Physician · NPI 1881048502

Matthew E Nilsson, MD is a Psychiatry in Portland, Maine. Graduated from Tufts University School of Medicine in 2016, 10 years ago. Practices with Mainehealth, a 2,615-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Maine.

Years since qualifying
10
Trained at
Tufts University School of Medicine
Licensed in
ME
In the registry since
2016
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

37 Andover Rd
Portland, ME 04102-1936
Phone: (207) 661-3600
Fax: (207) 761-0783
Show map & directions

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

Additional practice locations (3)

  • 66 Bramhall St, Portland, ME 04102-3344 — (207) 662-2160
  • 22 Bramhall St, Portland, ME 04102-3134 — (781) 526-1317
  • 123 Andover Rd, Westbrook, ME 04092-3848 — (207) 761-2200

Specialties & licences

Child & Adolescent Psychiatry Physician (primary) Taxonomy 2084P0804X · Licence MD24084 (ME)
Psychiatry Physician Taxonomy 2084P0800X · Licence MD24084 (ME)

Record details

NPI number1881048502
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 19, 2016
Last updated in NPPESMarch 20, 2025
Certification dateMarch 20, 2025

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2016 (10 years in practice)
Group practice Mainehealth — 2615 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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