Doctor profile · Federal record
Dr. Curtis Frewin, M.D.
Ophthalmology Physician (CMS: Ophthalmology) · Billings, MT
- NPI 1790977262
- Accepts Medicare
- MIPS 92.8 / 100 · 2023
- 24 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
801 N 29Th St
Billings, MT 591010905
(406) 238-2500 - Mailing address
-
Po Box 35100
Billings, MT 591075100
Credentials & registration
- NPI registered
- August 2007 — 19 yrs on file
- Profile last updated
- March 16, 2017
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 207W00000X — NUCC code
- State license (1)
- Montana #11556
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1790977262. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,327
Distinct HCPCS
10
Medicare allowed
$294,201
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 670 | 297 | $98 | |
92134 |
Imaging of retina | 482 | 168 | $25 | |
67028 |
Injection of drug into eye | 285 | 54 | $107 | |
66984 |
Removal of cataract with insertion of prosthetic lens | 239 | 154 | $534 | |
92136 |
Measurement of corneal curvature and depth of eye | 157 | 127 | $30 | |
92083 |
Exam of visual field with extended testing | 98 | 76 | $27 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 92 | 50 | $66 | |
92014 |
Established patient complete exam of visual system | 89 | 70 | $76 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 39 | 39 | $134 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 37 | 37 | $143 |
In context: peer comparison
Among 3 peers in Billings Ophthalmology Physician, average services per provider: 140. This provider delivers 17× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
2,173
Patients
996
Total drug cost
$133,233
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ketorolac Tromethamine | Generic | 551 | 280 | $10,887 |
| Prednisolone Acetate | Generic | 547 | 294 | $20,066 |
| Moxifloxacin (Moxifloxacin Hcl) | Brand | 378 | 264 | $11,425 |
| Latanoprost | Generic | 244 | 62 | $4,339 |
| Brimonidine Tartrate | Generic | 89 | 29 | $1,093 |
| Timolol Maleate | Generic | 76 | 22 | $957 |
| Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) | Brand | 59 | 18 | $1,023 |
| Restasis (Cyclosporine) | Brand | 45 | 15 | $36,785 |
| Lumigan (Bimatoprost) | Brand | 40 | 0 | $13,575 |
| Rhopressa (Netarsudil Mesylate) | Brand | 37 | 0 | $23,948 |
Hospital affiliations
Frequently asked questions
What is Dr. Curtis Frewin's medical specialty?
Dr. Curtis Frewin practices Ophthalmology Physician in Billings, MT.
Where does Dr. Curtis Frewin practice?
Dr. Curtis Frewin practices at 801 N 29Th St, Billings, MT 591010905. Office phone: 4062382500.
What is Dr. Curtis Frewin's NPI?
Dr. Curtis Frewin's National Provider Identifier (NPI) is 1790977262, issued by NPPES.
Does Dr. Curtis Frewin accept Medicare assignment?
Yes. Dr. Curtis Frewin accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Curtis Frewin commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Imaging of retina (HCPCS 92134); Injection of drug into eye (HCPCS 67028). Source: CMS Medicare Physician & Other Practitioners file.