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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JUSTIN YEE MAH AGACNP
NPI 1972212769
Nurse Practitioner - Acute Care in Portland, ME

Active since November 21, 2022PECOS Enrolled
22 BRAMHALL ST, PORTLAND, ME 04102(207) 662-2179(207) 662-6326 Get Directions Write a Review

NPPES record last updated: June 24, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 17, 2023, Nov 21, 2022 (2 updates tracked since 2022).

About Justin Yee Mah Agacnp NPPES

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

JUSTIN YEE MAH AGACNP (NPI 1972212769) is an individual acute care provider in Portland, Maine, licensed in Maine (CNP241763) and active in the NPI registry since November 2022. He is enrolled in Medicare PECOS and maintains a secondary practice location in Lynn.

NPPES Registry Identity

NPI1972212769
Entity TypeIndividualMale
Primary Taxonomy363LA2100X
Provider Legal NameJUSTIN YEE MAHCredential: AGACNP
Location Address22 BRAMHALL STPortland, ME 04102-3134
Mailing Address22 Bramhall StPortland, ME 04102-3134 · (207) 662-2179 · Fax (207) 662-6326
Phone(207) 662-2179
Fax(207) 662-6326
Sole ProprietorNo
Enumeration DateNovember 21, 2022
Last NPPES UpdateJune 24, 20262 updates tracked since enumeration
NPPES CertifiedJune 24, 2026
✔ NPI 1972212769 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2100X
Licenses✔ Licensed in ME · CNP241763✔ Licensed in MA · RN2324372
Also ListedRegistered Nurse · EmergencyTaxonomy 163WE0003X · License RN2324372 (MA)
22 BRAMHALL ST, Portland, ME 04102
Open in Google Maps ↗

Secondary Practice Location 1

Location 1292 Den Quarry RdLynn, MA 01904-1323 · Phone (781) 484-6582

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Justin Yee Mah Agacnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 04102 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$86.72 typical visit price
range $56.28 – $169.96
Typical copayment $21.68 (range $14.07 – $42.49)
Most-billed visit code 99203
Established Patient
$99.18 typical visit price
range $18.22 – $138.92
Typical copayment $24.79 (range $4.55 – $34.73)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

ABBY LYNN LABRECQUE PA-C
Physician Assistant (Medical)
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-8111
TEGAN SWIFT RD
Dietitian, Registered
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-4238
DEREK POULIN DO
Anesthesiology
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-2526
MATTHEW SCOTT AUSTIN CRNA
Nurse Anesthetist, Certified Registered
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-2526
MADELINE YOUNGBERG MD
Internal Medicine
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-0111
ERICA BRASLEY MD
Student in an Organized Health Care Education/Training Program
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-0111
REBECCA ROSE LIGHTMAN
Internal Medicine
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-7060
DR. LUKE PATRICK KEFFER MD, MBA
Student in an Organized Health Care Education/Training Program
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-0111

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 Justin Mah's NPI number?

The NPI number for Justin Mah is 1972212769. It was assigned to this individual provider in the NPPES registry on November 21, 2022.

Where is Justin Mah located?

Justin Mah practices at 22 Bramhall St, Portland, ME 04102. The listed phone number is (207) 662-2179.

What is Justin Mah's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Is Justin Mah enrolled in Medicare?

Yes. Justin Mah is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Justin Mah was last updated on June 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 45 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.