NPPES file of Aug 9, 2026

Thomas Riggio, O.D.

Optometrist · Cool, CA

Thomas Riggio, O.D. is an optometrist with a practice address in Cool, California, and NPI 1104252147, issued on Sep 23, 2013. Check the license (California 14774, as entered in NPPES) with the California 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
1104252147
Name
Thomas Riggio
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
14774 CA
Self-reported in NPPES; status is on the state search
Practice location
5020 Ellinghouse Dr, Cool, CA 95614
Phone
(530) 887-8048
Enumerated
Sep 23, 2013
Record last updated
May 27, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(877) 721-2722
Medicaid ID
6121840 CA
Medicare enrollment
Enrolled (PECOS I20150108000175); may accept 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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Verify Thomas Riggio in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 14774
    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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5% more Medicare Part D claims than the average optometrist in 2024

290 Medicare Part D claims for 73 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.

  1. Thomas Riggio290
  2. Specialty average277

Most prescribed

  1. Latanoprost91 claims
  2. Timolol Maleate24 claims
  3. Cyclosporine23 claims
  4. Neomycin-Polymyxin-Dexameth20 claims
  5. Brimonidine Tartrate16 claims
  6. Lumigan16 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.

Thomas Riggio among 8,308 optometrist records in California

Thomas Riggio, O.D. is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 66% of them.

  • NPI issued2013 · 66% of these records are older, 32% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2013 · median 2008 among the 3,573 with a school on file
  • Record last updated2020 · 67% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2 optometrist records list a practice address in Cool

They are 2 of the 18 NPPES records with a practice address in Cool, and 8,308 optometrist records in California.

The 8 optometrist records with the nearest ZIP codes

  1. Janie Evans, O.D.Cool, CA 956141477508067
  2. Alex Baker, O.D.Davis, CA 956161427287598
  3. Christine Chao, O.D.Davis, CA 956161437125523
  4. Dena Davidson, ODDavis, CA 956161629090659
  5. Melissa Erickson, O.D.Davis, CA 956161730163601
  6. Dennis Guerrieri, O.D.Davis, CA 956161366436917
  7. Joann Helmus, O.D.Davis, CA 956161689656894
  8. Mark Helmus, O.D.Davis, CA 956161558343905

Common questions

What is Thomas Riggio, O.D.'s NPI number?

Thomas Riggio, O.D.'s National Provider Identifier (NPI) is 1104252147, issued on Sep 23, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Riggio, O.D. located?

The NPPES record lists a practice address at 5020 Ellinghouse Dr, Cool, CA, 95614. Phone: (530) 887-8048. Providers update this record themselves, so call before visiting.

How can I verify Thomas Riggio, O.D.'s license?

NPPES lists California license number 14774, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Thomas Riggio, O.D. prescribe under Medicare Part D?

In 2024, Thomas Riggio, O.D. had 290 Medicare Part D claims for 73 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.