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

Dr. Gregory S Harrison, MD

Individual provider Neurological Surgery Physician · NPI 1104825892

Dr. Gregory S Harrison, MD practises Neurosurgery in Pocatello, Idaho. Graduated from Loyola University of Chicago, Stritch School of Medicine in 1995, 31 years ago. Practices with St Lukes Clinic-Treasure Valley LLC, a 1,150-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Idaho and Minnesota.

Years since qualifying
31
Trained at
Loyola University of Chicago, Stritch School of Medicine
Licensed in
ID, MN
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

777 Hospital Way Ste 115
Pocatello, ID 83201-5175 Not confirmed with CMS for 13 years — call before visiting
Phone: (208) 239-2260
Fax: (208) 239-3767
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurological Surgery Physician (primary) Taxonomy 207T00000X · Licence M11193 (ID)
Neurological Surgery Physician Taxonomy 207T00000X · Licence 44711 (MN)

Record details

NPI number1104825892
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 15, 2005
Last updated in NPPESFebruary 11, 2013

Medicare enrollment

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

Medicare specialtyNEUROSURGERY
Medical schoolLOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice St Lukes Clinic-Treasure Valley Llc — 1150 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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.

Laminectomy or laminotomy (partial removal of spine bones) 89 times · 92nd percentile
Spinal fusion 130 times · 80th percentile

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 patients182
Services billed 510 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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 St Lukes Clinic-Treasure Valley LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1150 clinicians in the practice; 12 are shown here.

Other providers in Pocatello