Zachary Oswald, O.D.
Optometrist · Dillon, MT
Zachary Oswald, O.D. is an optometrist with a practice address in Dillon, Montana, and NPI 1275810079, issued on Nov 8, 2011. Check the license (Montana OPT-OPT-LIC-3096, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Zachary Oswald
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- OPT-OPT-LIC-3096 MT
ODP-100231 ID
3437ATI OR
9885098-9934 UT
Self-reported in NPPES; status is on the state search - Practice location
- 25 Johnson Ave, Dillon, MT 59725
- Phone
- (406) 683-2020
- Enumerated
- Nov 8, 2011
- Entity
- Type 1 · individual
Also registered at 25 Johnson Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bradley Kepp, O.D.Optometrist1982786042
Verify Zachary Oswald in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license OPT-OPT-LIC-3096Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
22% more Medicare Part D claims than the average optometrist in 2024
338 Medicare Part D claims for 102 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.
Most prescribed
- Latanoprost101 claims
- Dorzolamide-Timolol50 claims
- Neomycin-Polymyxin-Dexameth43 claims
- Timolol Maleate37 claims
- Lumigan18 claims
- Prednisolone Acetate13 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 Medicare quality score for 2023: 93.7 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).
Industry payments in 2024: $15.26
1 payment, mostly food and beverage; the largest payer was Alcon Vision LLC. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
4 optometrist records list a practice address in Dillon
They are 4 of the 142 NPPES records with a practice address in Dillon, and 245 optometrist records in Montana.
All 4 in Dillon → All 245 in Montana → Every provider in Dillon →
Other optometrist records in Montana
- Fred Abraham, ODGreat Falls, MT1760441828
- John Anderson, O.D.Bozeman, MT1770031452
- Roger Anderson, ODSidney, MT1740345776
- Bret Argenbright, ODShelby, MT1922049469
- Peter Babcock, O.D.Missoula, MT1972696995
- Naomi Barnes, ODWhitefish, MT1851322648
- James Barney, ODLivingston, MT1982677787
- Johanna Barney, ODLivingston, MT1528554557
- David Bauer, O.D.Billings, MT1407807068
- Anthony Baumgartner, O.D.Butte, MT1215014535
Common questions
What is Zachary Oswald, O.D.'s NPI number?
Zachary Oswald, O.D.'s National Provider Identifier (NPI) is 1275810079, issued on Nov 8, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Zachary Oswald, O.D. located?
The NPPES record lists a practice address at 25 Johnson Ave, Dillon, MT, 59725. Phone: (406) 683-2020. Providers update this record themselves, so call before visiting.
How can I verify Zachary Oswald, O.D.'s license?
NPPES lists Montana license number OPT-OPT-LIC-3096, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.
How much does Zachary Oswald, O.D. prescribe under Medicare Part D?
In 2024, Zachary Oswald, O.D. had 338 Medicare Part D claims for 102 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
What is Zachary Oswald, O.D.'s Medicare quality score?
The 2023 MIPS final score is 93.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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) 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 27, 2026.