Curtis FrewinM.D.
Curtis Frewin, M.D. is an Ophthalmology provider in Billings, MT affiliated with 3 ambulatory surgery centers in MT, as of July 2026.
- NPI1790977262
- Registered2007
- Centers3
- StateMT
- Class of2002
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Ambulatory surgery centers
Centers whose service lines match this provider’s. Affiliations change; verify independently.
Curtis Frewin at a glance
- Provider
- Curtis Frewin
- Credential
- M.D.
- Specialty
- Ophthalmology
- Procedures
- Ophthalmology CPT codes
- Location
- Billings, MT
- Medical school graduation
- 2002
- NPI registered
- 2007
- NPI
- 1790977262
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does Curtis Frewin practice?
Curtis Frewin, M.D. is based in Billings, MT and is affiliated with 3 ambulatory surgery centers: The Eye Clinic Surgicenter in Billings, MT, Vance Thompson Vision Surgery Center Billings LLC in Billings, MT, and Northern Rockies Surgery Center Lp in Billings, MT. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Curtis Frewin's NPI number?
Curtis Frewin's National Provider Identifier (NPI) is 1790977262, registered in 2007. Specialty on record: Ophthalmology; credential M.D.
How many Ophthalmology providers in Montana work at ambulatory surgery centers?
23 Ophthalmology surgeons and proceduralists in Montana are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Curtis Frewin among them. The Montana Ophthalmology directory lists each one by city with credential, NPI, and center affiliations.
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