GARBIS D KEUSSEYAN
NPI 1285389973
Physician Assistant - Medical in Millinocket, ME

Active since February 21, 2022PECOS EnrolledAccepts Medicare Assignment
50 SUMMER ST, MILLINOCKET, ME 04462(207) 538-3700(207) 528-2880 Get Directions Write a Review

NPPES record last updated: May 12, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: May 12, 2026, Sep 9, 2022, Feb 21, 2022 (3 updates tracked since 2022).

About Garbis D Keusseyan NPPES

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

GARBIS D KEUSSEYAN (NPI 1285389973) is an individual medical provider in Millinocket, Maine, licensed in Maine (PA2434) and active in the NPI registry since February 2022. He is enrolled in Medicare PECOS, is affiliated with Northern Light Eastern Maine Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1285389973
Entity TypeIndividualMale
Primary Taxonomy363AM0700X
Provider Legal NameGARBIS D KEUSSEYAN
Location Address50 SUMMER STMillinocket, ME 04462-1400
Mailing Address529 S Patten RdPatten, ME 04765-3007 · (207) 538-3700 · Fax (207) 528-2880
Fax(207) 528-2880
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateFebruary 21, 2022
Last NPPES UpdateMay 12, 20263 updates tracked since enumeration
NPPES CertifiedMay 12, 2026
NPI 1285389973 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AM0700X
License Licensed in ME · PA2434
50 SUMMER ST, Millinocket, ME 04462

Secondary Practice Locations 2

Location 1140 Academy StPresque Isle, ME 04769-3171 · Phone (207) 764-3142
Location 223 North St Ste 4Presque Isle, ME 04769-2295 · Phone (207) 764-3142

Accepted 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

Garbis D Keusseyan 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 ID9830565803
PECOS Enrollment IDI20221017000127
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.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
89 services76 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
88 services80 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
46 services44 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
39 services33 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
35 services32 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
25 services25 patients

Hospital Affiliations CMS Care Compare 2

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

Northern Light Eastern Maine Medical Center

Acute Care Hospitals · Bangor, ME
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number200033
Location489 State StreetBangor, ME 04401 · Penobscot County
Emergency services Birthing friendly

Millinocket Regional Hospital

Critical Access Hospitals · Millinocket, ME
OwnershipVoluntary non-profit - Private
CMS Certification Number201307
Location200 Somerset StreetMillinocket, ME 04462 · Penobscot County
Emergency services

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.

Clinic/Center (Federally Qualified Health Center (FQHC))
50 SUMMER ST
MILLINOCKET, ME 04462
Dental Hygienist
50 SUMMER ST
MILLINOCKET, ME 04462
Dental Hygienist
50 SUMMER ST
MILLINOCKET, ME 04462
Registered Nurse
50 SUMMER ST
MILLINOCKET, ME 04462
Dental Assistant
50 SUMMER ST
MILLINOCKET, ME 04462
Optometrist
50 SUMMER ST
MILLINOCKET, ME 04462
Nurse Practitioner (Family)
50 SUMMER ST
MILLINOCKET, ME 04462
Dental Assistant
50 SUMMER ST
MILLINOCKET, ME 04462

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 Garbis Keusseyan's NPI number?

The NPI number for Garbis Keusseyan is 1285389973. It was assigned to this individual provider in the NPPES registry on February 21, 2022.

Where is Garbis Keusseyan located?

Garbis Keusseyan practices at 50 Summer St, Millinocket, ME 04462. The listed phone number is (207) 538-3700.

What is Garbis Keusseyan's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Is Garbis Keusseyan enrolled in Medicare?

Yes. Garbis Keusseyan 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 Garbis Keusseyan accept?

Health plans from Anthem Blue Cross and Blue Shield list Garbis Keusseyan 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 Garbis Keusseyan affiliated with any hospitals?

According to CMS data, Garbis Keusseyan is affiliated with Northern Light Eastern Maine Medical Center and Millinocket Regional Hospital.

When was this NPI record last updated?

The NPPES record for Garbis Keusseyan was last updated on May 12, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.