Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Mark Louis Siefring, MD

Individual provider Internal Medicine Physician · NPI 1245729870

Dr. Mark Louis Siefring, MD is an Internal Medicine in Louisville, Kentucky. Graduated from University of Louisville School of Medicine in 1995, 31 years ago. Practices with Community Medical Associates Inc, a 1,365-clinician group and accepts Medicare assignment. Licensed in Kentucky and Oregon.

Years since qualifying
31
Trained at
University of Louisville School of Medicine
Licensed in
KY, OR
In the registry since
2018
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1250 Bardstown Rd Ste 8
Louisville, KY 40204-1333
Phone: (502) 456-7047
Fax: (502) 452-1491
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 34079 (KY)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD203727 (OR)

Record details

NPI number1245729870
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 9, 2018
Last updated in NPPESAugust 11, 2025
Certification dateAugust 11, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF LOUISVILLE SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Community Medical Associates Inc — 1365 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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