NPPES file of Aug 9, 2026

Catherine J. Olson, O.D.

Optometrist · Billings, MT

Catherine J. Olson, O.D. is an optometrist with a practice address in Billings, Montana, and NPI 1780725853, issued on Feb 9, 2007. Check the license (Montana 0765, as entered in NPPES) with the Montana 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
1780725853
Name
Catherine J. Olson
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
0765 MT
Self-reported in NPPES; status is on the state search
Practice location
795 King Park Dr, Billings, MT 59102
Phone
(406) 656-1565
Enumerated
Feb 9, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(406) 656-1753
Medicare enrollment
Enrolled (PECOS I20170411002344); accepts Medicare assignment
Medical or professional school
Southern California College Of Optometry, 1990
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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Verify Catherine J. Olson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Montana board licenses this profession
    Search for license 0765
    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
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38% fewer Medicare Part D claims than the average optometrist in 2024

172 Medicare Part D claims for 64 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.

  1. Catherine Olson172
  2. Specialty average277

Most prescribed

  1. Latanoprost78 claims
  2. Erythromycin31 claims
  3. Timolol Maleate18 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.

Bills Medicare through one group practice

  1. Ophthalmic Associates OF Billings LLCBillings, MT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Catherine J. Olson among 245 optometrist records in Montana

Catherine J. Olson, O.D. is one of 245 optometrist records with a practice address in Montana. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 42% of them.

  • NPI issued2007 · 42% of these records are older, 43% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated1990 · median 2008 among the 160 with a school on file
  • Record last updated2007 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

44 optometrist records list a practice address in Billings

They are 44 of the 4,035 NPPES records with a practice address in Billings, and 245 optometrist records in Montana.

The 8 optometrist records with the nearest ZIP codes

  1. David Bauer, O.D.Billings, MT 591021407807068
  2. Kevin Biegel, O.D.Billings, MT 591021427108836
  3. Robyn Clausen, ODBillings, MT 591021427046713
  4. Robert Currence, O.D.Billings, MT 591021275516742
  5. Tom Felstet, ODBillings, MT 591021992727903
  6. Robert Gaskill, O.D.Billings, MT 591021366468068
  7. Amanda Haber, O.D.Billings, MT 591021750349049
  8. Robert Kautz, O.D.Billings, MT 591021568432334

Common questions

What is Catherine J. Olson, O.D.'s NPI number?

Catherine J. Olson, O.D.'s National Provider Identifier (NPI) is 1780725853, issued on Feb 9, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Catherine J. Olson, O.D. located?

The NPPES record lists a practice address at 795 King Park Dr, Billings, MT, 59102. Phone: (406) 656-1565. Providers update this record themselves, so call before visiting.

How can I verify Catherine J. Olson, O.D.'s license?

NPPES lists Montana license number 0765, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.

How much does Catherine J. Olson, O.D. prescribe under Medicare Part D?

In 2024, Catherine J. Olson, O.D. had 172 Medicare Part D claims for 64 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.

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.