2026 NPPES data Rheumatology Physician NPI 1356755672 M.D.
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Erin Penn, M.D.

Rheumatology Physician in Cleveland, Ohio.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,200 in Rheumatology 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
521
Medicare Part D claims · 84 beneficiaries · Rheumatology Physician avg: 2K
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
94.2/100
▲ 11 pts above national avg 83.1 · Exceptional
Industry payments
$114.03
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Erin Penn, M.D. reported a CMS MIPS final score of 94.2/100 - above the 83.1 national average - and filed 521 Medicare Part D claims in 2023.

94.2/100
MIPS score · +11 vs avg
521
Part D claims, 2023
80%
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.

Erin Penn, 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

94 Top 25% higher than 75% 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+: 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

Where Erin Penn, M.D. sits

This provider among rheumatology physician peers

Across the 2,181 rheumatology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Erin Penn, M.D. writes more Part D claims than 13% of them and scores higher on MIPS quality than 76% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.949.974.899.8Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 72Erin Penn, M.D.-Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 76
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one rheumatology physician peer from a representative sample of 60; the gold marker is Erin Penn, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Erin Penn, M.D. 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 Erin Penn, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 06/14/2014

NPI 1356755672

Primary specialty

Rheumatology Physician

Mid-sized

6,200 US NPIs in this specialty

Medicare Part D claims

521 75% vs specialty avg

2023 prescription claims

Specialty avg: 2,054

MIPS final score

94.2/100 11.1 pts vs avg

Exceptional band

vs 83.1 national avg

Specialty distribution in Ohio

How Rheumatology Physician compares to other specialties among Ohio providers

Ohio providers
Case Manager/Care Coordinator - 10.9%Case Manager/Care Coordinator10.9%Student in an Organized Health Care Education/Training Program - 4.7%Student in an Organized Health Care Education/Training Program4.7%Licensed Practical Nurse - 4%Licensed Practical Nurse4%Addiction (Substance Use Disorder) Counselor - 3.5%Addiction (Substance Use Disorder) Counselor3.5%Registered Nurse - 3.4%Registered Nurse3.4%Pharmacist - 3.4%Pharmacist3.4%Rheumatology Physician - 0.1%Rheumatology Physician0.1%
Largest specialties in Ohio (% of in-state providers)

Medicare quality performance, MIPS

Erin Penn, M.D.'s 2023 MIPS final score plotted against the Rheumatology Physician national average

High performer (top quartile)
MIPS Final Score
94.2/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Rheumatology Physician) - 94.2/100 vs national avg 83.1

0%100%National avg83%94.2%
MIPS final score (Rheumatology Physician) - 94.2/100 vs national avg 83.1
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).

Erin Penn, M.D. appears in the CMS NPPES registry as a Rheumatology Physician provider holding M.D. credentials at CLEVELAND CLINIC 9500 EUCLID AVENUE, Cleveland, OH, 44195, with a listed phone of (216) 444-5257. NPI 1356755672 was issued on 06/14/2014.

Medicare Part D records for calendar year 2023 show 521 prescription claims written by this provider, covering 84 Medicare beneficiaries and totaling roughly $547K in drug spend, split 20% brand-name and 80% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 94.2/100 for the 2023 performance year (Quality 78.3), compared with the national average of 83.1.

Rheumatology Physician is a mid-sized specialty nationwide, with 6,200 enrolled providers across 52 states and an average of 2,054 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

CLEVELAND CLINIC 9500 EUCLID AVENUE
Cleveland, OH 44195

Provider Details

NPI 1356755672
Specialty Rheumatology Physician
Credentials M.D.
Gender Female
NPI Issued 06/14/2014

CMS Quality Score (MIPS)

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

94.2464
Final Score
Avg: 83.1
78.2615
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where Erin Penn, 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.

Nuvance Health Medical Practice PC
Wappingers Falls, NY

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

Industry payments received (2024) - CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Erin Penn, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$114

Largest payer

Aurinia Pharma U.S., Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context - Ohio OMB 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~48K Ohio medical licensees in 2023 - they are NOT specific to Erin Penn, M.D.. To verify Erin Penn, M.D.'s current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases

OMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Ohio disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

Erin Penn, M.D. - brand share 20.0%
Rheumatology Physician average

20% brand-name claims vs 80% generic, on 521 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.

521
Total Claims
$547K
Total Drug Cost
84
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
907
Total Day Supply
26,014
Brand vs Generic
20% brand / 80% generic
Brand Drug Cost
$521K
Generic Drug Cost
$26K

Patient Demographics

Average Patient Age
71.9 years
Avg HCC Risk Score
1.73
Gender Split
73% female / 27% male

Top Prescribed Drugs (Medicare Part D)

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

What Erin Penn, 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
Hydroxychloroquine Sulfate
87
Prednisone
74
Methylprednisolone
41
Methotrexate
Methotrexate Sodium
33
Colchicine
26
Rinvoq
Upadacitinib
22
Gabapentin
21
Enbrel
Etanercept
16
Mycophenolate Mofetil
15
Clobetasol Propionate
13

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

Rheumatology Physician Overview

How Erin Penn, M.D. fits within the Rheumatology Physician landscape nationally.

6,200
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,054
Avg Claims per Provider

Erin Penn, M.D.'s 521 claims are below the specialty average of 2,054.

Nearby Rheumatology Physician Providers in Ohio

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

Compare Rheumatology 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 Ohio medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Rheumatology 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.

Frequently Asked Questions

What is Erin Penn, M.D.'s specialty?
Erin Penn, M.D. specializes in Rheumatology Physician and practices in Cleveland, Ohio. Credentials: M.D..
How much does Erin Penn, M.D. prescribe under Medicare Part D?
In 2023, Erin Penn, M.D. wrote 521 Medicare Part D claims totaling $547K in drug costs for 84 beneficiaries.
What is Erin Penn, M.D.'s Medicare quality score?
Erin Penn, M.D. has a CMS MIPS Final Score of 94.2/100 (Quality: 78.3). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Erin Penn, M.D. located?
Erin Penn, M.D. is located at CLEVELAND CLINIC 9500 EUCLID AVENUE, Cleveland, OH, 44195. Phone: (216) 444-5257.
What is Erin Penn, M.D.'s NPI number?
Erin Penn, M.D.'s National Provider Identifier (NPI) is 1356755672, issued on 06/14/2014.
Does Erin Penn, M.D. prescribe more brand-name or generic drugs?
Erin Penn, M.D.'s prescribing is 20% brand-name and 80% generic drugs by claim count, with $521K in brand drug costs.
How many Rheumatology Physician providers are there in the US?
There are 6,200 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,054 Medicare Part D claims per year.
What drugs does Erin Penn, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Erin Penn, M.D.'s most frequently prescribed drugs include Hydroxychloroquine Sulfate, Prednisone, Methylprednisolone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Erin Penn, M.D. accept Medicare?
Erin Penn, M.D. appears in CMS Medicare data with 521 Part D claims and 84 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Erin Penn, M.D.'s credentials?
Erin Penn, M.D.'s NPI is 1356755672 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

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.
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

Compiled from official public sources by the PlainDoctor editorial team.

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.