NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1891437265
Verify on CMS → Sarah Hirner
Emergency Medicine Physician in Portland, Maine.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 64,463 in Emergency Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
73
Medicare Part D claims · 63 beneficiaries · Emergency Medicine Physician avg: 352
What the federal data shows
Sarah Hirner filed 73 Medicare Part D claims in 2023 as an Emergency Medicine Physician in Portland, Maine.
- 73
- Part D claims, 2023
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.
Sarah Hirner's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
73 0th percentile higher than 0% of 1,370,886 prescribers
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
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Board-eligible specialty (heuristic, not verified)
Sarah Hirner practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Sarah Hirner?
Quality data not reportedPrimary specialty
Emergency Medicine Physician
Medicare Part D claims
73 79% vs specialty avg
Specialty distribution in Maine
How Emergency Medicine Physician compares to other specialties among Maine providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Emergency Medicine Physician. Verify directly:
How MIPS and board certification work
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).
Sarah Hirner appears in the CMS NPPES registry as an Emergency Medicine Physician provider at MAINE MEDICAL CENTER, Portland, ME, 04102, with a listed phone of (207) 662-0111. NPI 1891437265 was issued on 04/07/2022.
Medicare Part D records for calendar year 2023 show 73 prescription claims written by this provider, covering 63 Medicare beneficiaries and totaling roughly $5K in drug spend, with an opioid prescribing rate of 15.1%.
Emergency Medicine Physician is a high-volume specialty nationwide, with 64,463 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
Provider Details
| NPI | 1891437265 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Gender | Female |
| NPI Issued | 04/07/2022 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
73
Total Claims
$5K
Total Drug Cost
63
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 75
- Total Day Supply
- 810
- Generic Drug Cost
- $2K
- Opioid Claims
- 11 (15.1% rate)
- Antibiotic Claims
- 30
Patient Demographics
- Average Patient Age
- 71.3 years
- Avg HCC Risk Score
- 1.44
- Gender Split
- 56% female / 44% male
Emergency Medicine Physician Overview
How Sarah Hirner fits within the Emergency Medicine Physician landscape nationally.
64,463
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider
Sarah Hirner's 73 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 Hirner.
Dr. Deep Acharya
M.D.
Waterville, ME
Dr. Ranjiv Advani
MD
Farmington, ME
Dr. Tari Advani
MD
Lewiston, ME
Dr. Jason Aines
MD
Biddeford, ME
Dr. Taibah Alabdrabalnabi
M.D
Bangor, ME
Compare Emergency Medicine Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Maine medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Emergency Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Maine
Frequently Asked Questions
What is Sarah Hirner's specialty? ▼
Sarah Hirner specializes in Emergency Medicine Physician and practices in Portland, Maine.
How much does Sarah Hirner prescribe under Medicare Part D? ▼
In 2023, Sarah Hirner wrote 73 Medicare Part D claims totaling $5K in drug costs for 63 beneficiaries.
Where is Sarah Hirner located? ▼
Sarah Hirner is located at MAINE MEDICAL CENTER, Portland, ME, 04102. Phone: (207) 662-0111.
What is Sarah Hirner's NPI number? ▼
Sarah Hirner's National Provider Identifier (NPI) is 1891437265, issued on 04/07/2022.
Does Sarah Hirner prescribe opioids? ▼
Yes, Sarah Hirner had 11 opioid claims in 2023 with an opioid prescribing rate of 15.1%.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 64,463 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
Does Sarah Hirner accept Medicare? ▼
Sarah Hirner appears in CMS Medicare data with 73 Part D claims and 63 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sarah Hirner's credentials? ▼
Sarah Hirner's NPI is 1891437265. 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
View source datasets and methodology notes
- 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.