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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.

GREGORY DOUGLAS DUDZIK M.D.
NPI 1588058978
Preventive Medicine - Addiction Medicine in Portland, ME

Active since March 24, 2015PECOS Enrolled
22 BRAMHALL ST, PORTLAND, ME 04102(866) 600-2273 Get Directions Write a Review

NPPES record last updated: September 21, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

About Gregory Douglas Dudzik M.d. NPPES

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

GREGORY DOUGLAS DUDZIK M.D. (NPI 1588058978) is an individual addiction medicine provider in Portland, Maine, licensed in Maine (MD30603) and active in the NPI registry since March 2015. He is enrolled in Medicare PECOS and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1588058978
Entity TypeIndividualMale
Primary Taxonomy2083A0300X
Provider Legal NameGREGORY DOUGLAS DUDZIKCredential: M.D.
Location Address22 BRAMHALL STPortland, ME 04102-3134
Mailing Address18 Mollison WayLewiston, ME 04240-5811 · (708) 684-8000
Phone(866) 600-2273
Sole ProprietorNo
Enumeration DateMarch 24, 2015
Last NPPES UpdateSeptember 21, 2026
NPPES CertifiedSeptember 21, 2026
✔ NPI 1588058978 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPreventive Medicine · Addiction MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2083A0300X
License✔ Licensed in ME · MD30603
Definition
A physician engaged in the subspecialty practice of Addiction Medicine who specializes in the prevention, evaluation, diagnosis, treatment, and recovery of persons with the disease of addiction.
22 BRAMHALL ST, Portland, ME 04102
Open in Google Maps ↗

Secondary Practice Locations 3

Location 12300 Congress StPortland, ME 04102-1908 · Phone (207) 503-6746
Location 215 York StBiddeford, ME 04005-5532 · Phone (207) 893-0386
Location 386 Tandberg TrlWindham, ME 04062-5841 · Phone (207) 893-0386

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gregory Douglas Dudzik M.d. 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
$128.83 typical visit price
range $56.28 – $169.96
Typical copayment $32.20 (range $14.07 – $42.49)
Most-billed visit code 99204
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 Gregory Dudzik's NPI number?

The NPI number for Gregory Dudzik is 1588058978. It was assigned to this individual provider in the NPPES registry on March 24, 2015.

Where is Gregory Dudzik located?

Gregory Dudzik practices at 22 Bramhall St, Portland, ME 04102. The listed phone number is (866) 600-2273.

What is Gregory Dudzik's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Addiction Medicine, with taxonomy code 2083A0300X.

Is Gregory Dudzik enrolled in Medicare?

Yes. Gregory Dudzik is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Gregory Dudzik was last updated on September 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 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.