Dr. Stephen Frederick Gregorius, MD

Dr. Gregorius practices at Logan Health - Whitefish in Whitefish, Montana, part of Billings Clinic.

Dr. Gregorius' NPI, 1760660062, was assigned on February 8, 2008. Dr. Gregorius graduated from Loma Linda University School Of Medicine in 2006. Dr. Gregorius holds California license A100715.

Dr. Gregorius' primary practice is Logan Health - Whitefish, at 1600 Hospital Way, Whitefish, MT 59937 in Flathead County. The practice phone is (406) 863-3550.

Dr. Gregorius' primary practice is Logan Health - Whitefish in Whitefish, Montana, part of Billings Clinic. Dr. Gregorius is also affiliated with Logan Health Medical Center. The medical group on file is Logan Health Imaging. Dmand AI also links Dr. Gregorius to 1 more hospital, 4 group practices and clinics and 4 medical groups, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gregorius practices, 7 sites in all. Vendor and product names are available with a free account.

Orthopaedic surgery is Dr. Gregorius' primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Gregorius is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dmand AI has Dr. Gregorius' licenses on file in 3 states: California, Montana and Utah.

Dmand AI lists arm, wrist, hand fracture and dislocation, arthritis, bursitis, hip replacement, joint pain, knee injury, knee replacement and lower back pain among the conditions Dr. Gregorius treats.

CMS data shows 2,636 Medicare services from Dr. Gregorius across 11 procedure codes in 2024, for 323 Medicare patients. Medicare paid $156,849 for them.

CMS counts 323 Medicare patients who saw Dr. Gregorius in 2026. The largest group is 65 to 74, with 165 patients. 75% of them have arthritis, and 67% have high blood pressure. 8% are also on Medicaid. Their average risk score is 0.89, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Gregorius' median patient age at 71, with 55% women.

In 2026, Dr. Gregorius wrote 49 Medicare Part D claims for 32 patients. 100% of them were for generic drugs. CMS names the drug for 15 of them, across 1 drug with 11 or more claims each, at $27 in total drug cost. In 2023, CMS named 37 claims across 2 drugs.

Dr. Gregorius accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 65 procedures of hip replacement by Dr. Gregorius, more than 92% of the clinicians it reports for that procedure.

Dmand AI links 3 papers to Dr. Gregorius, published from 2015 to 2016. Dr. Gregorius' most frequent co-authors are Montri D. Wongworawat, MD, Alicia Rosa August, MD and David Downs, MD.

CMS Open Payments shows 13 general payments to Dr. Gregorius from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 93% of the total. Zimmer Biomet Holdings, Inc. paid the most, $350.

Dr. Gregorius graduated from Loma Linda University School Of Medicine in 2006.

Dr. Gregorius is in network with 15 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.