NPPES file of Aug 9, 2026

Jason Ronald Oilar, O.D.

Optometrist · Springfield, OR

Jason Ronald Oilar, O.D. is an optometrist with a practice address in Springfield, Oregon, and NPI 1922333913, issued on Oct 8, 2009. Check the license (Oregon 3595AT, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1922333913
Name
Jason Ronald Oilar
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License numbers
3595AT OR
3274 MN
Self-reported in NPPES; status is on the state search
Practice location
1611 J St, Springfield, OR 97477
Phone
(541) 726-5055
Enumerated
Oct 8, 2009
Record last updated
Jun 8, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(541) 747-5440
Medicare enrollment
Enrolled (PECOS I20150908001345); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1611 J St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Claude Brist, O.D.Optometrist1427098755
  2. Erin Estep, DMDPediatric Dentistry1811204233

Verify Jason Ronald Oilar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oregon board licenses this profession
    Search for license 3595AT    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Oregon license search

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8% fewer Medicare Part D claims than the average optometrist in 2024

256 Medicare Part D claims for 76 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.

  1. Jason Oilar256
  2. Specialty average277

Most prescribed

  1. Latanoprost145 claims
  2. Dorzolamide-Timolol18 claims
  3. Neomycin-Polymyxin-Dexameth17 claims
  4. Timolol Maleate17 claims
  5. Prednisolone Acetate16 claims
  6. Xiidra11 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.

Optometrist providers in Oregon

There are 944 optometrist records in Oregon.

All 944 in Oregon → Every provider in Springfield →

Other optometrist records in Oregon

  1. James Adamek, ODEagle Point, OR1568660199
  2. Brittany Adams, O.D.Albany, OR1265732978
  3. Makayla Adams, ODMyrtle Creek, OR1790461911
  4. Shelly Adams, O.D.White City, OR1396908075
  5. Samuel Adelman, O.D.Happy Valley, OR1043545122
  6. Brett Agost, O.D.Gresham, OR1326030883
  7. Dane AgostGresham, OR1376461657
  8. Andrew Aker, O.D.Portland, OR1154520906
  9. Joseph An, O.D.Gresham, OR1235271511
  10. Anna Anderson, O.D.Portland, OR1376707984

Common questions

What is Jason Ronald Oilar, O.D.'s NPI number?

Jason Ronald Oilar, O.D.'s National Provider Identifier (NPI) is 1922333913, issued on Oct 8, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Jason Ronald Oilar, O.D. located?

The NPPES record lists a practice address at 1611 J St, Springfield, OR, 97477. Phone: (541) 726-5055. Providers update this record themselves, so call before visiting.

How can I verify Jason Ronald Oilar, O.D.'s license?

NPPES lists Oregon license number 3595AT, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.

How much does Jason Ronald Oilar, O.D. prescribe under Medicare Part D?

In 2024, Jason Ronald Oilar, O.D. had 256 Medicare Part D claims for 76 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.