Doctor profile · Federal record

Dr. Mark Ozog, MD

Ophthalmology Physician (CMS: Ophthalmology) · Ophthalmology Physician · Great Falls, MT

  • NPI 1124106786
  • Accepts Medicare
  • MIPS 80.3 / 100 · 2023
  • 37 yrs in practice
  • Licensed in 2 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1417 9Th St S Ste 100
Great Falls, MT 594054509
(406) 453-1613
fax (406) 453-3717
Mailing address
1417 9Th St So, #100
Great Falls, MT 594054503

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
March 22, 2023
Year of graduation
1989 — 37 yrs since
Specialty taxonomy
207W00000X — NUCC code
State licenses (2)
Montana #7816 · Colorado #29408
Medicaid
MT #0014053

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1124106786. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
20,119
Distinct HCPCS
10
Medicare allowed
$1,456,883
HCPCS Description Services Patients Avg allowed
J2777 Injection, faricimab-svoa, 0.1 mg 16,200 62 $37
92134 Imaging of retina 944 299 $41
J0178 Injection, aflibercept, 1 mg 646 93 $867
92014 Established patient complete exam of visual system 627 611 $127
67028 Injection of drug into eye 564 153 $122
99212 Established patient office or other outpatient visit, 10-19 minutes 428 199 $57
92004 New patient complete exam of visual system 202 202 $151
92012 Established patient problem focused exam of visual system 165 113 $91
92136 Measurement of corneal curvature and depth of eye 105 35 $26
66984 Removal of cataract with insertion of prosthetic lens 50 34 $543

In context: peer comparison

Among 2 peers in this city , average services per provider: 924. This provider delivers 22× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$117
Transactions
3
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Regeneron Healthcare Solutions, Inc. 2 $69.97
Astellas Pharma US Inc 1 $46.64

By nature of payment

Food and Beverage
$117

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
638
Patients
231
Total drug cost
$36,713
Drug Type Claims Patients Total cost
Latanoprost Generic 181 35 $2,912
Prednisolone Acetate Generic 86 57 $4,617
Diclofenac Sodium Generic 81 74 $1,087
Timolol Maleate Generic 67 12 $1,588
Erythromycin (Erythromycin Base) Brand 50 25 $700
Brimonidine Tartrate Generic 36 0 $1,777
Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) Brand 31 0 $559
Neomycin-Polymyxin-Dexameth (Neomycin/Polymyxin B/Dexametha) Brand 30 28 $456
Valacyclovir (Valacyclovir Hcl) Brand 19 0 $719
Restasis (Cyclosporine) Brand 17 0 $10,849

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Ozog's medical specialty?
Dr. Mark Ozog practices Ophthalmology Physician in Great Falls, MT.
Where does Dr. Mark Ozog practice?
Dr. Mark Ozog practices at 1417 9Th St S Ste 100, Great Falls, MT 594054509. Office phone: 4064531613.
What is Dr. Mark Ozog's NPI?
Dr. Mark Ozog's National Provider Identifier (NPI) is 1124106786, issued by NPPES.
Does Dr. Mark Ozog accept Medicare assignment?
Yes. Dr. Mark Ozog accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Ozog commonly perform?
Top Medicare-reported procedures in 2023: Injection, faricimab-svoa, 0.1 mg (HCPCS J2777); Imaging of retina (HCPCS 92134); Injection, aflibercept, 1 mg (HCPCS J0178). Source: CMS Medicare Physician & Other Practitioners file.