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

Mark Sheiko, MD

Individual provider Cytopathology Physician · NPI 1275612616

Mark Sheiko, MD is a Cytopathology Physician in Billings, Montana. Licensed in Montana. Registered with an NPI since 2006.

Licensed in
MT
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.

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Practice location Address checks out

2800 10th Ave N
Billings, MT 59101-0703
Phone: (406) 238-2500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence 4653 (MT)
Cytopathology Physician Taxonomy 207ZC0500X · Licence 4653 (MT)

Record details

NPI number1275612616
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 5, 2006
Last updated in NPPESDecember 15, 2014
Mailing addressPo Box 35100, Billings, MT 59107-5100

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