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

Individual provider Obstetrics & Gynecology Physician · NPI 1265465207

Dr. Shaun J. Gillis, MD practises Obstetrics/Gynecology in Bozeman, Montana. Graduated from University of Washington School of Medicine in 1999, 27 years ago. Practices with Bozeman Health Deaconess Hospital, a 313-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Montana.

Years since qualifying
27
Trained at
University of Washington School of Medicine
Licensed in
MT
In the registry since
2006
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

905 Highland Blvd Ste 4500
Bozeman, MT 59715-6903
Phone: (406) 414-5150
Fax: (406) 414-5175
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 10375 (MT)

Record details

NPI number1265465207
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 9, 2006
Last updated in NPPESApril 10, 2025
Certification dateApril 10, 2025

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 1999 (27 years in practice)
Group practice Bozeman Health Deaconess Hospital — 313 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of the uterus 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients79
Services billed 132 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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 Bozeman Health Deaconess Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 313 clinicians in the practice; 12 are shown here.

Other providers in Bozeman