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

Dr. Mark Evan Demuth, DO

Individual provider Family Medicine Physician · NPI 1619031192

Dr. Mark Evan Demuth, DO is registered under Family Practice in Clarkson, Kentucky. Graduated from Mid West Medical College in 2001, 25 years ago. Practices with Owensboro Health, Inc, a 190-clinician group and accepts Medicare assignment. Licensed in Illinois and Kentucky.

Years since qualifying
25
Trained at
Mid West Medical College
Licensed in
IL, KY
In the registry since
2006
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

619 W Main St
Clarkson, KY 42726-7044 Not confirmed with CMS for 17 years — call before visiting
Phone: (186) 665-3823
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 03097 (KY)
Family Medicine Physician Taxonomy 207Q00000X · Licence 036110355 (IL)

Record details

NPI number1619031192
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedDecember 20, 2006
Last updated in NPPESMarch 9, 2009

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolMID WEST MEDICAL COLLEGE
Graduated 2001 (25 years in practice)
Group practice Owensboro Health, Inc — 190 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients182
Services billed 485 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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.

Colleagues at Owensboro Health, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 190 clinicians in the practice; 12 are shown here.