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2026 NPPES data Physical Medicine & Rehabilitation Physician NPI 1477598142 MD
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Matthew Karshner, MD

Physical Medicine & Rehabilitation Physician in Cape Girardeau, Missouri.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 15,336 in Physical Medicine & Rehabilitation 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
1K
Medicare Part D claims · 211 beneficiaries · Physical Medicine & Rehabilitation Physician avg: 781
MIPS score
63.6/100
▼ 20 pts below national avg 83.5 · Mid-tier
Industry payments
$162.34
8 payments · CMS Open Payments (Sunshine Act)
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Matthew Karshner, MD reported a CMS MIPS final score of 63.6/100 - below the 83.5 national average - and filed 1,375 Medicare Part D claims in 2023.

63.6/100
MIPS score · -20 vs avg
1K
Part D claims, 2023
Likely
board-certified (heuristic)
≥6th
pct among measured MIPS (lower-bound band)

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.

CMS NPPES provider registry desk

NPI 1477598142 · Physical Medicine & Rehabilitation Physician

NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-LOW · RX-MID · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1477598142
  • ENUM-LEGACY 2006
  • TAX-MID 15K Physical Medicine
  • MIPS-LOW 63.6/100
  • RX-MID 1,375
  • BOOK-THIN 267 in Missouri
  • PHOTO-FINISH Virgilio Chan · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Matthew Karshner, MD's MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

64 ≥ 6th percentile 6% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). This entry sits in this band. 70–80: 94,570 measured providers (21%). Above this entry. 80–90: 129,887 measured providers (29%). Above this entry. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Matthew Karshner, MD sits

This provider among physical medicine & rehabilitation physician peers

Across the 2,483 physical medicine & rehabilitation physician providers who report both Medicare Part D prescribing and a MIPS quality score, Matthew Karshner, MD writes more Part D claims than 83% of them and scores higher on MIPS quality than 12% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100023.647.370.994.5Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 28Matthew Karshner, MD, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 12
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one physical medicine & rehabilitation physician peer from a representative sample of 60; the gold marker is Matthew Karshner, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Matthew Karshner, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 4 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 Matthew Karshner, MD?

Below national average

NPI registry status

Active

Issued 06/18/2006

NPI 1477598142

Primary specialty

Physical Medicine & Rehabilitation Physician

Mid-sized

15,336 US NPIs in this specialty

Medicare Part D claims

1,375 76% vs specialty avg

2023 prescription claims

Specialty avg: 781

MIPS final score

63.6/100 19.9 pts vs avg

Mid-tier band

vs 83.5 national avg

Specialty distribution in Missouri

How Physical Medicine & Rehabilitation Physician compares to other specialties among Missouri providers

Missouri providers
Pharmacist4.8%Professional Counselor4.8%Speech-Language Pathologist4.5%Clinical Social Worker4.5%Family Nurse Practitioner4.3%Physical Therapist4%Physical Medicine & Rehabili…0.2%
Largest specialties in Missouri (% of in-state providers)

Medicare quality performance, MIPS

Matthew Karshner, MD's 2023 MIPS final score plotted against the Physical Medicine & Rehabilitation Physician national average

Below national average
MIPS Final Score
63.6/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%63.6%
MIPS final score (Physical Medicine & Rehabilitation Physician) - 63.6/100 vs national avg 83.5
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).

Practice Address

2126 INDEPENDENCE ST
Cape Girardeau, MO 63703
(573) 986-4404

Provider Details

NPI 1477598142
Specialty Physical Medicine & Rehabilitation Physician
Credentials MD
Gender Male
NPI Issued 06/18/2006

CMS Quality Score (MIPS)

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

63.6378
Final Score
Measured-score avg: 83.5
20.1939
Quality
58.5987
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Matthew Karshner, 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.

According to CMS billing records, Matthew Karshner, MD is affiliated with 4 Medicare-billing facilities across 2 states.

Health Facilities Rehab Services Inc
Sikeston, MO
Madonna Rehabilitation Hospital
Lincoln, NE
Regional West Physicians Clinic
Scottsbluff, NE
Southeast Missouri Hospital Physicians LLC
Cape Girardeau, MO

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 Matthew Karshner, MD. Source: openpaymentsdata.cms.gov.

Total received

$162

Largest payer

ABBVIE 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.

Medicare Part D Prescribing Data

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

1,375
Total Claims
$83K
Total Drug Cost
211
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,471
Total Day Supply
40,412
Generic Drug Cost
$26K
Opioid Claims
85 (6.2% rate)
Antibiotic Claims
26

Patient Demographics

Average Patient Age
72.6 years
Avg HCC Risk Score
2.00
Gender Split
56% female / 44% male
Age Distribution
<65: 36, 65-74: 81, 75-84: 69, 85+: 25

Top Prescribed Drugs (Medicare Part D)

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

What Matthew Karshner, MD 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
Gabapentin
 138
Pregabalin
 88
Pantoprazole Sodium
 57
Atorvastatin Calcium
 54
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
48
Trazodone Hcl
 34
Nabumetone
 26
Levothyroxine Sodium
 25
Amitriptyline Hcl
 24
Amlodipine Besylate
 24

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

More Physical Medicine & Rehabilitation Physician in MO → All providers in Missouri → Compare specialties →

Physical Medicine & Rehabilitation Physician Overview

How Matthew Karshner, MD fits within the Physical Medicine & Rehabilitation Physician landscape nationally.

15,336
Physical Medicine & Rehabilitation Physician Providers in US
54
States with Physical Medicine & Rehabilitation Physician
781
Avg Claims per Provider

Matthew Karshner, MD's 1,375 claims are above the specialty average of 781.

Nationwide Physical Medicine & Rehabilitation Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Karshner, both outside Missouri so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (63.6 here).

Eric Hansen 63.6 KS Virgilio Chan 63.6 IN Ryan Dill 63.6 IN Vince Hume 63.6 IN

Same NPPES enumeration year (2006)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Kristen Barrett Mechanicsville, VA Murray Joiner Roanoke, VA William Hennessey Greensburg, PA James Kreshon Pittsburgh, PA

Nearby Physical Medicine & Rehabilitation Physician Providers in Missouri

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

One of 267 Physical Medicine & Rehabilitation Physician providers enrolled in Missouri, 5 are shown here.

Dr. Syed Abdul Khader
M.D.
Bridgeton, MO
Dr. Osvaldo Acosta-Rodriguez
MD
Jefferson City, MO
Dr. Michael Acuff
MD
Columbia, MO
Shraddha Adwalpalker
Saint Louis, MO
Dr. Ahmed Ali
M.D.
Florissant, MO

Compare Physical Medicine & Rehabilitation Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Matthew Karshner, MD's specialty? ▼
Matthew Karshner, MD specializes in Physical Medicine & Rehabilitation Physician and practices in Cape Girardeau, Missouri. Credentials: MD.
How much does Matthew Karshner, MD prescribe under Medicare Part D? ▼
In 2023, Matthew Karshner, MD wrote 1,375 Medicare Part D claims totaling $83K in drug costs for 211 beneficiaries.
What is Matthew Karshner, MD's Medicare quality score? ▼
Matthew Karshner, MD has a CMS MIPS Final Score of 63.6/100 (Quality: 20.2, Cost: 58.6). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Matthew Karshner, MD located? ▼
Matthew Karshner, MD is located at 2126 INDEPENDENCE ST, Cape Girardeau, MO, 63703. Phone: (573) 986-4404.
What is Matthew Karshner, MD's NPI number? ▼
Matthew Karshner, MD's National Provider Identifier (NPI) is 1477598142, issued on 06/18/2006.
Does Matthew Karshner, MD prescribe opioids? ▼
Yes, Matthew Karshner, MD had 85 opioid claims in 2023 with an opioid prescribing rate of 6.2%.
How many Physical Medicine & Rehabilitation Physician providers are there in the US? ▼
There are 15,336 Physical Medicine & Rehabilitation Physician providers across 54 states in the US. The average Physical Medicine & Rehabilitation Physician provider writes 781 Medicare Part D claims per year.
What drugs does Matthew Karshner, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Matthew Karshner, MD's most frequently prescribed drugs include Gabapentin, Pregabalin, Pantoprazole Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Matthew Karshner, MD accept Medicare? ▼
Matthew Karshner, MD appears in CMS Medicare data with 1,375 Part D claims and 211 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Matthew Karshner, MD's credentials? ▼
Matthew Karshner, MD's NPI is 1477598142 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

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 editorial process.

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.