2026 NPPES data Emergency Medicine Physician NPI 1285925537
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LEROY DANIELSON

Emergency Medicine Physician in MACHIAS, 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
230
Medicare Part D claims · 137 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

LEROY DANIELSON filed 230 Medicare Part D claims in 2023 as a Emergency Medicine Physician in MACHIAS, Maine, prescribing 91% generic.

230
Part D claims, 2023
91%
generic prescribing
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.

LEROY DANIELSON's Medicare Part D volume vs every U.S. prescriber

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

230 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 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)

LEROY DANIELSON practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 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 LEROY DANIELSON?

Quality data not reported

NPI registry status

Active

Issued 04/20/2011

NPI 1285925537

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

230 35% vs specialty avg

2023 prescription claims

Specialty avg: 352

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Emergency Medicine 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).

LEROY DANIELSON is a Emergency Medicine Physician provider practicing in MACHIAS, Maine, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1285925537. 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.

LEROY DANIELSON appears in the CMS NPPES registry as a Emergency Medicine Physician provider at 11 HOSPITAL DR, MACHIAS, ME, 04654, with a listed phone of (207) 255-3356. NPI 1285925537 was issued on 04/20/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DANIELSON 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 230 prescription claims written by this provider, covering 137 Medicare beneficiaries and totaling roughly $9K in drug spend, split 9% brand-name and 91% generic by claim count. 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.

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

11 HOSPITAL DR
MACHIAS, ME 04654

Provider Details

NPI 1285925537
Specialty Emergency Medicine Physician
Gender Male
NPI Issued 04/20/2011

Hospital and facility affiliations

Facilities where LEROY DANIELSON 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.

YORK HOSPITAL
★★★★☆ 4/5
YORK, ME
Acute Care Hospitals
CMS CCN: 200020
HOULTON REGIONAL HOSPITAL
★★★☆☆ 3/5
HOULTON, ME
Critical Access Hospitals
CMS CCN: 201308
BLUEWATER EMERGENCY PARTNERS OF BRUNSWICK, LLC
CALAIS, 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).

Brand vs generic prescribing mix · Generic-heavy

LEROY DANIELSON — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 230 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

230
Total Claims
$9K
Total Drug Cost
137
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
254
Total Day Supply
3,919
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$5K
Generic Drug Cost
$4K
Antibiotic Claims
94

Patient Demographics

Average Patient Age
71.1 years
Avg HCC Risk Score
1.44
Gender Split
58% female / 42% male
Age Distribution
<65: 24, 65-74: 60, 75-84: 37, 85+: 16

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Doxycycline Monohydrate
29
Prednisone
22
Cefdinir
19
Sucralfate
17

* 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 LEROY DANIELSON 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

LEROY DANIELSON's 230 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 DANIELSON.

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

Frequently Asked Questions

What is LEROY DANIELSON's specialty?
LEROY DANIELSON specializes in Emergency Medicine Physician and practices in MACHIAS, Maine.
How much does LEROY DANIELSON prescribe under Medicare Part D?
In 2023, LEROY DANIELSON wrote 230 Medicare Part D claims totaling $9K in drug costs for 137 beneficiaries.
Where is LEROY DANIELSON located?
LEROY DANIELSON is located at 11 HOSPITAL DR, MACHIAS, ME, 04654. Phone: (207) 255-3356.
What is LEROY DANIELSON's NPI number?
LEROY DANIELSON's National Provider Identifier (NPI) is 1285925537, issued on 04/20/2011.
Does LEROY DANIELSON prescribe more brand-name or generic drugs?
LEROY DANIELSON's prescribing is 9% brand-name and 91% generic drugs by claim count, with $5K in brand drug costs.
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 LEROY DANIELSON prescribe most often?
Based on 2023 Medicare Part D data, LEROY DANIELSON's most frequently prescribed drugs include Doxycycline Monohydrate, Prednisone, Cefdinir. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LEROY DANIELSON accept Medicare?
LEROY DANIELSON appears in CMS Medicare data with 230 Part D claims and 137 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LEROY DANIELSON's credentials?
LEROY DANIELSON's NPI is 1285925537. 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