2026 NPPES data Dermatology Physician NPI 1588641674 M.D.
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MARIAN MC EVOY, M.D.

Dermatology Physician in ROCHESTER, Minnesota. 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
176
Medicare Part D claims · 47 beneficiaries · Dermatology Physician avg: 729
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

MARIAN MC EVOY, M.D. filed 176 Medicare Part D claims in 2023 as a Dermatology Physician in ROCHESTER, Minnesota, prescribing 86% generic.

176
Part D claims, 2023
86%
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.

MARIAN MC EVOY, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

176 35th percentile higher than 35% of 1,370,886 prescribers

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

MARIAN MC EVOY, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — 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 MARIAN MC EVOY, M.D.?

Quality data not reported

NPI registry status

Active

Issued 12/29/2005

NPI 1588641674

Primary specialty

Dermatology Physician

Mid-sized

14,610 US NPIs in this specialty

Medicare Part D claims

176 76% vs specialty avg

2023 prescription claims

Specialty avg: 729

Specialty distribution in Minnesota

How Dermatology Physician compares to other specialties among Minnesota providers

Minnesota providers

Dermatology Physician share within Minnesota

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

Specialty board-certification context

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

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

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

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

MARIAN MC EVOY, M.D. appears in the CMS NPPES registry as a Dermatology Physician provider holding M.D. credentials at 200 1ST ST SW, ROCHESTER, MN, 55905, with a listed phone of (507) 284-2511. NPI 1588641674 was issued on 12/29/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MC EVOY 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 176 prescription claims written by this provider, covering 47 Medicare beneficiaries and totaling roughly $353K in drug spend, split 14% brand-name and 86% 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.

Dermatology Physician is a mid-sized specialty nationwide, with 14,610 enrolled providers across 53 states and an average of 729 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

200 1ST ST SW
ROCHESTER, MN 55905

Provider Details

NPI 1588641674
Specialty Dermatology Physician
Credentials M.D.
Gender Female
NPI Issued 12/29/2005

Hospital and facility affiliations

Facilities where MARIAN MC EVOY, 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.

MAYO CLINIC
ROCHESTER, MN

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 · Typical

MARIAN MC EVOY, M.D. — brand share 14.0%
Specialty average (est.)

14% brand-name claims vs 86% generic, on 176 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.

176
Total Claims
$353K
Total Drug Cost
47
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
257
Total Day Supply
6,941
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$343K
Generic Drug Cost
$10K
Antibiotic Claims
11

Patient Demographics

Average Patient Age
74.0 years
Avg HCC Risk Score
1.25
Gender Split
64% female / 36% male

Top Prescribed Drugs (Medicare Part D)

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

What MARIAN MC EVOY, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Triamcinolone Acetonide
21
Ketoconazole
20
Methotrexate
Methotrexate Sodium
19
Hydrocortisone
11

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

Dermatology Physician Overview

How MARIAN MC EVOY, M.D. fits within the Dermatology Physician landscape nationally.

14,610
Dermatology Physician Providers in US
53
States with Dermatology Physician
729
Avg Claims per Provider

MARIAN MC EVOY, M.D.'s 176 claims are below the specialty average of 729.

Nearby Dermatology Physician Providers in Minnesota

Other clinicians with the same primary specialty enrolled in Minnesota, drawn from the same CMS NPPES roster as MC EVOY.

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

Frequently Asked Questions

What is MARIAN MC EVOY, M.D.'s specialty?
MARIAN MC EVOY, M.D. specializes in Dermatology Physician and practices in ROCHESTER, Minnesota. Credentials: M.D..
How much does MARIAN MC EVOY, M.D. prescribe under Medicare Part D?
In 2023, MARIAN MC EVOY, M.D. wrote 176 Medicare Part D claims totaling $353K in drug costs for 47 beneficiaries.
Where is MARIAN MC EVOY, M.D. located?
MARIAN MC EVOY, M.D. is located at 200 1ST ST SW, ROCHESTER, MN, 55905. Phone: (507) 284-2511.
What is MARIAN MC EVOY, M.D.'s NPI number?
MARIAN MC EVOY, M.D.'s National Provider Identifier (NPI) is 1588641674, issued on 12/29/2005.
Does MARIAN MC EVOY, M.D. prescribe more brand-name or generic drugs?
MARIAN MC EVOY, M.D.'s prescribing is 14% brand-name and 86% generic drugs by claim count, with $343K in brand drug costs.
How many Dermatology Physician providers are there in the US?
There are 14,610 Dermatology Physician providers across 53 states in the US. The average Dermatology Physician provider writes 729 Medicare Part D claims per year.
What drugs does MARIAN MC EVOY, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MARIAN MC EVOY, M.D.'s most frequently prescribed drugs include Triamcinolone Acetonide, Ketoconazole, Methotrexate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARIAN MC EVOY, M.D. accept Medicare?
MARIAN MC EVOY, M.D. appears in CMS Medicare data with 176 Part D claims and 47 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARIAN MC EVOY, M.D.'s credentials?
MARIAN MC EVOY, M.D.'s NPI is 1588641674 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