Curtis Lee Frewin, M.D.
Ophthalmology Physician · Billings, MT
Curtis Lee Frewin, M.D. is an ophthalmology physician with a practice address in Billings, Montana, and NPI 1790977262, issued on Aug 17, 2007. Check the license (Montana 11556, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Curtis Lee Frewin
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 11556 MT
Self-reported in NPPES; status is on the state search - Practice location
- 801 N 29TH St, Billings, MT 59101
- Phone
- (406) 238-2500
- Enumerated
- Aug 17, 2007
- Record last updated
- Mar 16, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080724000821); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 801 N 29TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kylie Abeson, MD, MPHPediatrics Physician1699334987
- Juan Adams, M.D.Allergy & Immunology Physician1144512096
- Daniel AlmeStudent in an Organized Health Care Education/Training Program1477349165
- Luis Alvarez, MDClinical Cardiac Electrophysiology Physician1417951922
- Annalee Anderson, MA, CCC-SLPSpeech-Language Pathologist1083047088
- Bijan Andrade, DPMFoot & Ankle Surgery Podiatrist1891059556
Verify Curtis Lee Frewin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 11556Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% more Medicare Part D claims than the average ophthalmology physician in 2024
2,193 Medicare Part D claims for 377 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.
Most prescribed
- Prednisolone Acetate514 claims
- Ketorolac Tromethamine490 claims
- Latanoprost257 claims
- Moxifloxacin251 claims
- Brimonidine Tartrate118 claims
- Ofloxacin94 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 94.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
One hospital affiliation
- Billings ClinicBillings, MT · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Ophthalmology Physician providers in Montana
There are 65 ophthalmology physician records in Montana.
Other ophthalmology physician records in Montana
- Aaron Alme, M.D.Kalispell, MT1245359223
- Roger Barth, M.D.Kalispell, MT1730195801
- Allen Beardsley, M.D.Havre, MT1366414823
- Jerald Bell, MDBillings, MT1003838236
- Thomas Berbos, MDHelena, MT1710963517
- Paul Berner, M.D.Fort Harrison, MT1447367651
- Jefferson BerrymanMissoula, MT1275995714
- David Boes, MDGreat Falls, MT1487655379
- Mark Calderwood, MDHamilton, MT1447353024
- Mark Comaratta, M.D.Bozeman, MT1144286121
Common questions
What is Curtis Lee Frewin, M.D.'s NPI number?
Curtis Lee Frewin, M.D.'s National Provider Identifier (NPI) is 1790977262, issued on Aug 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Curtis Lee Frewin, M.D. located?
The NPPES record lists a practice address at 801 N 29TH St, Billings, MT, 59101. Phone: (406) 238-2500. Providers update this record themselves, so call before visiting.
How can I verify Curtis Lee Frewin, M.D.'s license?
NPPES lists Montana license number 11556, as entered by the provider. Search the Montana Board of Medical Examiners at https://ebiz.mt.gov/POL/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Curtis Lee Frewin, M.D. prescribe under Medicare Part D?
In 2024, Curtis Lee Frewin, M.D. had 2,193 Medicare Part D claims for 377 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Curtis Lee Frewin, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.