2026 NPPES data Emergency Medicine Physician NPI 1801098140 M.D.
Verify on CMS →

GARRETH DEBIEGUN, M.D.

Emergency Medicine Physician in PORTLAND, 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
204
Medicare Part D claims · 141 beneficiaries · Emergency Medicine Physician avg: 352
MIPS score
79.3772/100
▼ 4 pts below national avg 83.1 · [object Object]

What the federal data shows

GARRETH DEBIEGUN, M.D. reported a CMS MIPS final score of 79.3772/100 — below the 83.1 national average — and filed 204 Medicare Part D claims in 2023.

79.3772/100
MIPS score · -4 vs avg
204
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.

GARRETH DEBIEGUN, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

79 30th percentile higher than 30% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

GARRETH DEBIEGUN, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 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 GARRETH DEBIEGUN, M.D.?

Near national average

NPI registry status

Active

Issued 05/31/2007

NPI 1801098140

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

204 42% vs specialty avg

2023 prescription claims

Specialty avg: 352

MIPS final score

79.3772/100 3.7227999999999923% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Maine

How Emergency Medicine Physician compares to other specialties among Maine providers

Maine providers

Emergency Medicine Physician share within Maine

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

Medicare quality performance — MIPS

GARRETH DEBIEGUN, M.D.'s 2023 MIPS final score plotted against the Emergency Medicine Physician national average

Near national average
MIPS Final Score
79.3772/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Emergency Medicine Physician) — 79.3772/100 vs national avg 83.1

0%100%National avg83%79.4%
MIPS final score (Emergency Medicine Physician) — 79.3772/100 vs national avg 83.1

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).

GARRETH DEBIEGUN, M.D. is a Emergency Medicine Physician provider practicing in PORTLAND, Maine, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1801098140. 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.

GARRETH DEBIEGUN, M.D. appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding M.D. credentials at 22 BRAMHALL ST, PORTLAND, ME, 04102, with a listed phone of (207) 662-7010. NPI 1801098140 was issued on 05/31/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DEBIEGUN 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 204 prescription claims written by this provider, covering 141 Medicare beneficiaries and totaling roughly $9K in drug spend, with an opioid prescribing rate of 7.4%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.3772/100 for the 2023 performance year (Quality 57.662), compared with the national average of 83.1.

Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 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

22 BRAMHALL ST
PORTLAND, ME 04102

Provider Details

NPI 1801098140
Specialty Emergency Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 05/31/2007

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

79.3772
Final Score
Avg: 83.1
57.662
Quality
99
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where GARRETH DEBIEGUN, 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.

BLUEWATER EMERGENCY PARTNERS OF BRUNSWICK, LLC
RUMFORD, ME
MAINEHEALTH
PORTLAND, ME

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

Medicare Part D Prescribing Data

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

204
Total Claims
$9K
Total Drug Cost
141
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
214
Total Day Supply
2,681
Generic Drug Cost
$3K
Opioid Claims
15 (7.4% rate)
Antibiotic Claims
81

Patient Demographics

Average Patient Age
69.6 years
Avg HCC Risk Score
1.47
Gender Split
55% female / 45% male
Age Distribution
<65: 29, 65-74: 62, 75-84: 33, 85+: 17

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Prednisone
22
Ondansetron Odt
Ondansetron
14
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
13
Doxycycline Hyclate
13

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

Emergency Medicine Physician Overview

How GARRETH DEBIEGUN, M.D. fits within the Emergency Medicine Physician landscape nationally.

64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

GARRETH DEBIEGUN, M.D.'s 204 claims are below the specialty average of 352.

Nearby Emergency Medicine Physician Providers in Maine

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

Compare Emergency Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is GARRETH DEBIEGUN, M.D.'s specialty?
GARRETH DEBIEGUN, M.D. specializes in Emergency Medicine Physician and practices in PORTLAND, Maine. Credentials: M.D..
How much does GARRETH DEBIEGUN, M.D. prescribe under Medicare Part D?
In 2023, GARRETH DEBIEGUN, M.D. wrote 204 Medicare Part D claims totaling $9K in drug costs for 141 beneficiaries.
What is GARRETH DEBIEGUN, M.D.'s Medicare quality score?
GARRETH DEBIEGUN, M.D. has a CMS MIPS Final Score of 79.3772/100 (Quality: 57.662). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is GARRETH DEBIEGUN, M.D. located?
GARRETH DEBIEGUN, M.D. is located at 22 BRAMHALL ST, PORTLAND, ME, 04102. Phone: (207) 662-7010.
What is GARRETH DEBIEGUN, M.D.'s NPI number?
GARRETH DEBIEGUN, M.D.'s National Provider Identifier (NPI) is 1801098140, issued on 05/31/2007.
Does GARRETH DEBIEGUN, M.D. prescribe opioids?
Yes, GARRETH DEBIEGUN, M.D. had 15 opioid claims in 2023 with an opioid prescribing rate of 7.4%.
How many Emergency Medicine Physician providers are there in the US?
There are 64,398 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does GARRETH DEBIEGUN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, GARRETH DEBIEGUN, M.D.'s most frequently prescribed drugs include Prednisone, Ondansetron Odt, Amoxicillin-Clavulanate Potass. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GARRETH DEBIEGUN, M.D. accept Medicare?
GARRETH DEBIEGUN, M.D. appears in CMS Medicare data with 204 Part D claims and 141 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GARRETH DEBIEGUN, M.D.'s credentials?
GARRETH DEBIEGUN, M.D.'s NPI is 1801098140 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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