Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Matthew W Karshner, MD

Individual provider Physical Medicine & Rehabilitation Physician · NPI 1477598142

Matthew W Karshner, MD is registered under Physical Medicine and Rehabilitation in Cape Girardeau, Missouri. Graduated from Ohio State University College of Medicine in 1988, 38 years ago. Practices with Southern Illinois Medical Services Nfp, a 332-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Illinois and Missouri.

Years since qualifying
38
Trained at
Ohio State University College of Medicine
Licensed in
IL, MO
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

2126 Independence St
Cape Girardeau, MO 63703
Phone: (573) 986-4404
Fax: (573) 986-4439
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 405 W Jackson St, Carbondale, IL 62901-1462 — (618) 549-0721
  • 201 S 14th St, Herrin, IL 62948-3631 — (618) 942-2171
  • 2 S Hospital Dr, Murphysboro, IL 62966-3333 — (618) 684-3156

Specialties & licences

Physical Medicine & Rehabilitation Physician (primary) Taxonomy 208100000X · Licence 102275 (MO)
Physical Medicine & Rehabilitation Physician Taxonomy 208100000X · Licence 036177987 (IL)

Record details

NPI number1477598142
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 18, 2006
Last updated in NPPESApril 2, 2026
Certification dateApril 2, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICAL MEDICINE AND REHABILITATION
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 1988 (38 years in practice)
Group practice Southern Illinois Medical Services Nfp — 332 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients350
Services billed 17,958 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Also affiliated with 4 inpatient rehabilitation facilities, which CMS identifies by certification number only.

Colleagues at Southern Illinois Medical Services Nfp

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 332 clinicians in the practice; 12 are shown here.

Other providers in Cape Girardeau