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

Dr. Michael Zamostny, DO

Individual provider Internal Medicine Physician · NPI 1659819928

Dr. Michael Zamostny, DO practises Internal Medicine in Chillicothe, Ohio. Qualified in 2017, 9 years ago. Practices with Usacs Integrated Acute Care Services of Ohio LLC, a 234-clinician group and accepts Medicare assignment. Licensed in Florida, Ohio and Virginia.

Years since qualifying
9
Licensed in
FL, OH, VA
In the registry since
2017
Specialties on file
3
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

446 Hospital Rd
Chillicothe, OH 45601-9030
Phone: (740) 779-7070
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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 34.013630 (OH)
Internal Medicine Physician Taxonomy 207R00000X · Licence TPOS436 (FL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 0102207507 (VA)

Record details

NPI number1659819928
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedFebruary 7, 2017
Last updated in NPPESAugust 31, 2022
Certification dateAugust 31, 2022

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Usacs Integrated Acute Care Services Of Ohio Llc — 234 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 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 patients224
Services billed 246 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.

Colleagues at Usacs Integrated Acute Care Services of Ohio LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 234 clinicians in the practice; 12 are shown here.

Other providers in Chillicothe