NPPES file of Aug 9, 2026

Ronald Ray Guiley, O.D., M.P.H.

Optometrist · Bend, OR

Ronald Ray Guiley, O.D., M.P.H. is an optometrist with a practice address in Bend, Oregon, and NPI 1619913944, issued on Jun 22, 2006. Check the license (Oregon 1537ATI, 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
1619913944
Name
Ronald Ray Guiley
Credential
O.D., M.P.H.
Primary taxonomy
Optometrist 152W00000X
License number
1537ATI OR
Self-reported in NPPES; status is on the state search
Practice location
63455 N Hwy 97 Ste 75, Bend, OR 97703
Phone
(541) 388-7906
Enumerated
Jun 22, 2006
Record last updated
Feb 17, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(541) 388-8190
Medicare enrollment
Enrolled (PECOS I20070705000638); may accept Medicare assignment
Medical or professional school
University Of California - School Of Optometry, 1981
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 63455 N Hwy 97 Ste 75

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

  1. Megan Riha, ODOptometrist1043940273

Verify Ronald Ray Guiley 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 1537ATI
    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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40% fewer Medicare Part D claims than the average optometrist in 2024

167 Medicare Part D claims for 28 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Ronald Guiley167
  2. Specialty average277

Most prescribed

  1. Latanoprost93 claims
  2. Dorzolamide-Timolol29 claims
  3. Dorzolamide Hcl12 claims
  4. Timolol Maleate12 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. Coffman Vision Clinic IncBend, OR

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

Ronald Ray Guiley among 944 optometrist records in Oregon

Ronald Ray Guiley, O.D., M.P.H. is one of 944 optometrist records with a practice address in Oregon. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.

  • NPI issued2006 · 11% of these records are older, 60% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1981 · median 2010 among the 552 with a school on file
  • Record last updated2016 · 65% 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 Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Oregon

There are 944 optometrist records in Oregon.

The 8 optometrist records with the nearest ZIP codes

  1. Erin Follen, O.D.Bend, OR 977031255683595
  2. Eric Hinds, ODBend, OR 977031093160269
  3. Brock Karben, O.D.Bend, OR 977031881841781
  4. Wenshan Liu, ODBend, OR 977031295162642
  5. Daniela Minnis, ODBend, OR 977031962787010
  6. Stephanie RettenmeierBend, OR 977031295197226
  7. Megan Riha, ODBend, OR 977031043940273
  8. Carl Ryan, O.D.Bend, OR 977031154435162

Common questions

What is Ronald Ray Guiley, O.D., M.P.H.'s NPI number?

Ronald Ray Guiley, O.D., M.P.H.'s National Provider Identifier (NPI) is 1619913944, issued on Jun 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ronald Ray Guiley, O.D., M.P.H. located?

The NPPES record lists a practice address at 63455 N Hwy 97 Ste 75, Bend, OR, 97703. Phone: (541) 388-7906. Providers update this record themselves, so call before visiting.

How can I verify Ronald Ray Guiley, O.D., M.P.H.'s license?

NPPES lists Oregon license number 1537ATI, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.

How much does Ronald Ray Guiley, O.D., M.P.H. prescribe under Medicare Part D?

In 2024, Ronald Ray Guiley, O.D., M.P.H. had 167 Medicare Part D claims for 28 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.