2026 NPPES data Emergency Medicine Physician NPI 1801450598 MD
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GRETCHEN STUMHOFER, MD

Emergency Medicine Physician in FREDERICK, Maryland. 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
90
Medicare Part D claims · 71 beneficiaries · Emergency Medicine Physician avg: 352
MIPS score
90.0793/100
▲ 7 pts above national avg 83.1 · [object Object]

What the federal data shows

GRETCHEN STUMHOFER, MD reported a CMS MIPS final score of 90.0793/100 — above the 83.1 national average — and filed 90 Medicare Part D claims in 2023.

90.0793/100
MIPS score · +7 vs avg
90
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.

GRETCHEN STUMHOFER, MD's MIPS score vs every scored U.S. clinician

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

90 Top 40% higher than 60% 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%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. 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)

GRETCHEN STUMHOFER, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 GRETCHEN STUMHOFER, MD?

High performer (top quartile)

NPI registry status

Active

Issued 04/28/2019

NPI 1801450598

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

90 74% vs specialty avg

2023 prescription claims

Specialty avg: 352

MIPS final score

90.0793/100 6.979300000000009% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Maryland

How Emergency Medicine Physician compares to other specialties among Maryland providers

Maryland providers

Emergency Medicine Physician share within Maryland

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

Medicare quality performance — MIPS

GRETCHEN STUMHOFER, MD's 2023 MIPS final score plotted against the Emergency Medicine Physician national average

High performer (top quartile)
MIPS Final Score
90.0793/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Emergency Medicine Physician) — 90.0793/100 vs national avg 83.1

0%100%National avg83%90.1%
MIPS final score (Emergency Medicine Physician) — 90.0793/100 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).

GRETCHEN STUMHOFER, MD appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding MD credentials at 400 W 7TH ST, FREDERICK, MD, 21701, with a listed phone of (240) 566-3300. NPI 1801450598 was issued on 04/28/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what STUMHOFER 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 90 prescription claims written by this provider, covering 71 Medicare beneficiaries and totaling roughly $2K 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 90.0793/100 for the 2023 performance year (Quality 81.9623), 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

400 W 7TH ST
FREDERICK, MD 21701

Provider Details

NPI 1801450598
Specialty Emergency Medicine Physician
Credentials MD
Gender Female
NPI Issued 04/28/2019

CMS Quality Score (MIPS)

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

90.0793
Final Score
Avg: 83.1
81.9623
Quality
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where GRETCHEN STUMHOFER, MD 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.

CEP AMERICA - CALIFORNIA
SAN FRANCISCO, CA

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.

90
Total Claims
$2K
Total Drug Cost
71
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
90
Total Day Supply
739
Generic Drug Cost
$771
Antibiotic Claims
38

Patient Demographics

Average Patient Age
72.8 years
Avg HCC Risk Score
1.47
Gender Split
58% female / 42% 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
Cephalexin
14

* 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 GRETCHEN STUMHOFER, MD 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

GRETCHEN STUMHOFER, MD's 90 claims are below the specialty average of 352.

Nearby Emergency Medicine Physician Providers in Maryland

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

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

Frequently Asked Questions

What is GRETCHEN STUMHOFER, MD's specialty?
GRETCHEN STUMHOFER, MD specializes in Emergency Medicine Physician and practices in FREDERICK, Maryland. Credentials: MD.
How much does GRETCHEN STUMHOFER, MD prescribe under Medicare Part D?
In 2023, GRETCHEN STUMHOFER, MD wrote 90 Medicare Part D claims totaling $2K in drug costs for 71 beneficiaries.
What is GRETCHEN STUMHOFER, MD's Medicare quality score?
GRETCHEN STUMHOFER, MD has a CMS MIPS Final Score of 90.0793/100 (Quality: 81.9623). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is GRETCHEN STUMHOFER, MD located?
GRETCHEN STUMHOFER, MD is located at 400 W 7TH ST, FREDERICK, MD, 21701. Phone: (240) 566-3300.
What is GRETCHEN STUMHOFER, MD's NPI number?
GRETCHEN STUMHOFER, MD's National Provider Identifier (NPI) is 1801450598, issued on 04/28/2019.
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 GRETCHEN STUMHOFER, MD prescribe most often?
Based on 2023 Medicare Part D data, GRETCHEN STUMHOFER, MD's most frequently prescribed drugs include Cephalexin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GRETCHEN STUMHOFER, MD accept Medicare?
GRETCHEN STUMHOFER, MD appears in CMS Medicare data with 90 Part D claims and 71 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GRETCHEN STUMHOFER, MD's credentials?
GRETCHEN STUMHOFER, MD's NPI is 1801450598 with credentials MD. 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