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

Marcus Henry Birky, DO

Individual provider Anesthesiology Physician · NPI 1871836528

Marcus Henry Birky, DO is an Anesthesiology in Billings, Montana. Qualified in 2013, 13 years ago. Practices with Missoula Anesthesiology PC, a 46-clinician group and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
13
Licensed in
MT
In the registry since
2013
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

2800 10th Ave N
Billings, MT 59101-0703
Phone: (406) 945-4195
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence MED-PHYS-LIC-55120 (MT)

Record details

NPI number1871836528
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 1, 2013
Last updated in NPPESJanuary 29, 2020
Certification dateJanuary 29, 2020
Mailing addressPo Box 1155, Billings, MT 59103-1155

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Missoula Anesthesiology Pc — 46 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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