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MATTHEW E NILSSON MD
NPI 1881048502
Psychiatry & Neurology - Child & Adolescent Psychiatry in Portland, ME

Active since April 19, 2016PECOS EnrolledAccepts Medicare Assignment
98.06/100
CMS Quality Rating
37 ANDOVER RD, PORTLAND, ME 04102(207) 661-3600(207) 761-0783 Get Directions Write a Review

NPPES record last updated: March 20, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 20, 2025, Sep 9, 2021 (2 updates tracked since 2021).

About Matthew E Nilsson Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MATTHEW E NILSSON MD (NPI 1881048502) is an individual child & adolescent psychiatry provider in Portland, Maine, licensed in Maine (MD24084) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS, is affiliated with Maine Medical Center, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1881048502
Entity TypeIndividualMale
Primary Taxonomy2084P0804X
Provider Legal NameMATTHEW E NILSSONCredential: MD
Location Address37 ANDOVER RDPortland, ME 04102-1936
Mailing Address37 Andover RdPortland, ME 04102-1936 · (207) 661-3600 · Fax (207) 761-0783
Phone(207) 661-3600
Fax(207) 761-0783
Sole ProprietorNo
Medical School CMSTufts University School Of MedicineGraduated 2016
Enumeration DateApril 19, 2016
Last NPPES UpdateMarch 20, 20252 updates tracked since enumeration
NPPES CertifiedMarch 20, 2025
✔ NPI 1881048502 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · Child & Adolescent PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0804X
License✔ Licensed in ME · MD24084
Definition

Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.

Also ListedPsychiatry & Neurology · PsychiatryTaxonomy 2084P0800X · License MD24084 (ME)
37 ANDOVER RD, Portland, ME 04102
Open in Google Maps ↗

Secondary Practice Locations 3

Location 166 Bramhall StPortland, ME 04102-3344 · Phone (207) 662-2160 · Fax (207) 662-6348
Location 222 Bramhall StPortland, ME 04102-3134 · Phone (781) 526-1317
Location 3123 Andover RdWestbrook, ME 04092-3848 · Phone (207) 761-2200 · Fax (207) 761-2108

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Matthew E Nilsson Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5597044461
PECOS Enrollment IDI20210819001123
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Maine Medical Center

Acute Care Hospitals · Portland, ME
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number200009
Location22 Bramhall StPortland, ME 04102 · Cumberland County
Emergency services Birthing friendly

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

98.06/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality86.13
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JAMES B LIVENGOOD SLP
Speech-Language Pathologist
37 ANDOVER RD
PORTLAND, ME 04102
Cumberland County (207) 661-3600
CARISSA D CAVALLARO LCSW
Social Worker (Clinical)
37 ANDOVER RD
PORTLAND, ME 04102
Cumberland County (207) 661-3600
MICHELLE SHAROOD BCBA
Behavior Analyst
37 ANDOVER RD
PORTLAND, ME 04102
Cumberland County (207) 661-3600
KERRI HOPE WATKOSKE BCBA
Behavior Analyst
37 ANDOVER RD
PORTLAND, ME 04102
Cumberland County (207) 661-3600
SPENSER M MARLEY OT
Occupational Therapist
37 ANDOVER RD
PORTLAND, ME 04102
Cumberland County (207) 661-3600
MERCEDEZ ELIZABETH JONES
Behavior Technician
37 ANDOVER RD
PORTLAND, ME 04102
Cumberland County (207) 661-3600
CHELSEA ANN OUELLETTE MS OTR/L
Occupational Therapist
37 ANDOVER RD
PORTLAND, ME 04102
Cumberland County (207) 661-3600
MILES PATRICK CLEARY LCSW
Social Worker (Clinical)
37 ANDOVER RD
PORTLAND, ME 04102
Cumberland County (207) 661-3600

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Matthew Nilsson's NPI number?

The NPI number for Matthew Nilsson is 1881048502. It was assigned to this individual provider in the NPPES registry on April 19, 2016.

Where is Matthew Nilsson located?

Matthew Nilsson practices at 37 Andover Rd, Portland, ME 04102. The listed phone number is (207) 661-3600.

What is Matthew Nilsson's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.

Is Matthew Nilsson enrolled in Medicare?

Yes. Matthew Nilsson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Matthew Nilsson accept?

Health plans from Anthem Blue Cross and Blue Shield list Matthew Nilsson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Matthew Nilsson affiliated with any hospitals?

According to CMS data, Matthew Nilsson is affiliated with Maine Medical Center.

When was this NPI record last updated?

The NPPES record for Matthew Nilsson was last updated on March 20, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.