NPPES file of Aug 9, 2026

Riley Williamson, O.D.

Optometrist · Green Valley, AZ

Riley Williamson, O.D. is an optometrist with a practice address in Green Valley, Arizona, and NPI 1407118169, issued on Jun 8, 2012. Check the license (Arizona 1887, as entered in NPPES) with the Arizona 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1407118169
Name
Riley Williamson
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
1887 AZ
Self-reported in NPPES; status is on the state search
Practice location
560 E Continental Road, Green Valley, AZ 85614
Phone
(520) 625-5673
Enumerated
Jun 8, 2012
Record last updated
Feb 7, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(520) 625-6259
Medicare enrollment
Enrolled (PECOS I20121121000378); accepts Medicare assignment
Medical or professional school
Southern College Of Optometry, 2012
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 Riley Williamson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license 1887
    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 Arizona license search

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2.3 times the Medicare Part D claims of the average optometrist in 2024

640 Medicare Part D claims for 203 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.

  1. Riley Williamson640
  2. Specialty average277

Most prescribed

  1. Latanoprost268 claims
  2. Timolol Maleate80 claims
  3. Dorzolamide-Timolol42 claims
  4. Brimonidine Tartrate40 claims
  5. Restasis36 claims
  6. Dorzolamide Hcl28 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 MIPS final score for 2023 (Medicare payment program): 97.5 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.

  1. Qualityout of 100 · 30% of the final score95.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $201.98

6 payments; by number, the most common kind was food and beverage; the largest payer was RxSight Inc. 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.

  1. Riley Williamson$201.98
  2. Specialty average$769.99

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Vista Eye Care, PLCGreen Valley, AZ

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

Riley Williamson among 1,336 optometrist records in Arizona

Riley Williamson, O.D. is one of 1,336 optometrist records with a practice address in Arizona. 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 2012, is newer than 59% of them.

  • NPI issued2012 · 59% of these records are older, 39% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2012 · median 2010 among the 746 with a school on file
  • Record last updated2017 · 62% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

9 optometrist records list a practice address in Green Valley

They are 9 of the 307 NPPES records with a practice address in Green Valley, and 1,336 optometrist records in Arizona.

The 8 optometrist records with the nearest ZIP codes

  1. Christine Bartoletti, O.D.Green Valley, AZ 856141992777197
  2. Thomas Bottoms, O.D.Green Valley, AZ 856141053308312
  3. Connor Christensen, ODGreen Valley, AZ 856141730762154
  4. Trinity Le, ODSahuarita, AZ 856141457984056
  5. Morgan Marquez, ODGreen Valley, AZ 856141265225148
  6. Tayla MeadeGreen Valley, AZ 856141609250885
  7. Samantha Nogales, O. D.Green Valley, AZ 856141629206859
  8. Dale Sarratt, ODGreen Valley, AZ 856141952412496

Common questions

What is Riley Williamson, O.D.'s NPI number?

Riley Williamson, O.D.'s National Provider Identifier (NPI) is 1407118169, issued on Jun 8, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Riley Williamson, O.D. located?

The NPPES record lists a practice address at 560 E Continental Road, Green Valley, AZ, 85614. Phone: (520) 625-5673. Providers update this record themselves, so call before visiting.

How can I verify Riley Williamson, O.D.'s license?

NPPES lists Arizona license number 1887, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Riley Williamson, O.D. prescribe under Medicare Part D?

In 2024, Riley Williamson, O.D. had 640 Medicare Part D claims for 203 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

What is Riley Williamson, O.D.'s MIPS final score?

The 2023 MIPS final score is 97.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.