2026 NPPES data Gastroenterology Physician NPI 1861422586 M.D.
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BRIAN BERBERIAN, M.D.

Gastroenterology Physician in BANGOR, Maine. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
550
Medicare Part D claims · 164 beneficiaries · Gastroenterology Physician avg: 833
Industry payments
$28.0K
132 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

BRIAN BERBERIAN, M.D. filed 550 Medicare Part D claims in 2023 as a Gastroenterology Physician in BANGOR, Maine.

550
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

BRIAN BERBERIAN, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

550 Top 34% higher than 66% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

BRIAN BERBERIAN, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 4 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about BRIAN BERBERIAN, M.D.?

Quality data not reported

NPI registry status

Active

Issued 07/05/2006

NPI 1861422586

Primary specialty

Gastroenterology Physician

Mid-sized

16,567 US NPIs in this specialty

Medicare Part D claims

550 34% vs specialty avg

2023 prescription claims

Specialty avg: 833

Specialty distribution in Maine

How Gastroenterology Physician compares to other specialties among Maine providers

Maine providers

Gastroenterology Physician share within Maine

1. Gastroenterology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Gastroenterology Physician share within Maine

Specialty board-certification context

Estimated specialty board-certified rate — Gastroenterology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Gastroenterology Physician ABMS/AOA estimate

Est. board-certified rate (Gastroenterology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Gastroenterology Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

BRIAN BERBERIAN, M.D. is a Gastroenterology Physician provider practicing in BANGOR, Maine, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1861422586. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

BRIAN BERBERIAN, M.D. appears in the CMS NPPES registry as a Gastroenterology Physician provider holding M.D. credentials at 360 BROADWAY STE 100, BANGOR, ME, 04401, with a listed phone of (207) 907-3550. NPI 1861422586 was issued on 07/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BERBERIAN most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 550 prescription claims written by this provider, covering 164 Medicare beneficiaries and totaling roughly $580K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Gastroenterology Physician is a mid-sized specialty nationwide, with 16,567 enrolled providers across 54 states and an average of 833 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

360 BROADWAY STE 100
BANGOR, ME 04401

Provider Details

NPI 1861422586
Specialty Gastroenterology Physician
Credentials M.D.
Gender Male
NPI Issued 07/05/2006

Hospital and facility affiliations

Facilities where BRIAN BERBERIAN, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

ADVANCED GASTROENTEROLOGY OF NORTHERN NJ LLC
Ocean City, NJ
BERGEN COUNTY IMPROVEMENT AUTHORITY
PARAMUS, NJ
PROSPECT HEALTH ACCESS NETWORK INC
CHESTER, PA
WELLSPAN MEDICAL GROUP
GETTYSBURG, PA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for BRIAN BERBERIAN, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$28.0K

Largest payer

Intra-Sana Laboratories

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

550
Total Claims
$580K
Total Drug Cost
164
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
811
Total Day Supply
21,131
Generic Drug Cost
$20K
Antibiotic Claims
17

Patient Demographics

Average Patient Age
67.4 years
Avg HCC Risk Score
1.35
Gender Split
62% female / 38% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Omeprazole
113
Linzess
Linaclotide
45
Metformin Hcl
33
Mounjaro
Tirzepatide
30
Ozempic
Semaglutide
28
Sucralfate
27
Pantoprazole Sodium
19
Loperamide
Loperamide Hcl
14
Creon
Lipase/Protease/Amylase
13
Famotidine
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Gastroenterology Physician Overview

How BRIAN BERBERIAN, M.D. fits within the Gastroenterology Physician landscape nationally.

16,567
Gastroenterology Physician Providers in US
54
States with Gastroenterology Physician
833
Avg Claims per Provider

BRIAN BERBERIAN, M.D.'s 550 claims are below the specialty average of 833.

Nearby Gastroenterology Physician Providers in Maine

Other clinicians with the same primary specialty enrolled in Maine, drawn from the same CMS NPPES roster as BERBERIAN.

Compare Gastroenterology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is BRIAN BERBERIAN, M.D.'s specialty?
BRIAN BERBERIAN, M.D. specializes in Gastroenterology Physician and practices in BANGOR, Maine. Credentials: M.D..
How much does BRIAN BERBERIAN, M.D. prescribe under Medicare Part D?
In 2023, BRIAN BERBERIAN, M.D. wrote 550 Medicare Part D claims totaling $580K in drug costs for 164 beneficiaries.
Where is BRIAN BERBERIAN, M.D. located?
BRIAN BERBERIAN, M.D. is located at 360 BROADWAY STE 100, BANGOR, ME, 04401. Phone: (207) 907-3550.
What is BRIAN BERBERIAN, M.D.'s NPI number?
BRIAN BERBERIAN, M.D.'s National Provider Identifier (NPI) is 1861422586, issued on 07/05/2006.
How many Gastroenterology Physician providers are there in the US?
There are 16,567 Gastroenterology Physician providers across 54 states in the US. The average Gastroenterology Physician provider writes 833 Medicare Part D claims per year.
What drugs does BRIAN BERBERIAN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, BRIAN BERBERIAN, M.D.'s most frequently prescribed drugs include Omeprazole, Linzess, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BRIAN BERBERIAN, M.D. accept Medicare?
BRIAN BERBERIAN, M.D. appears in CMS Medicare data with 550 Part D claims and 164 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BRIAN BERBERIAN, M.D.'s credentials?
BRIAN BERBERIAN, M.D.'s NPI is 1861422586 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology