NPPES file of Aug 9, 2026

Ronald C. Harrison, O.D.

Optometrist · Santa Rosa, CA

Ronald C. Harrison, O.D. is an optometrist with a practice address in Santa Rosa, California, and NPI 1588653752, issued on Oct 19, 2005. Check the license (California OPT 6943 TPA, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1588653752
Name
Ronald C. Harrison
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License numbers
OPT 6943 TPA CA
2000145741 MO
2555T TX
Self-reported in NPPES; status is on the state search
Practice location
2320 Midway Dr, Santa Rosa, CA 95405
Phone
(707) 526-2020
Enumerated
Oct 19, 2005
Record last updated
May 29, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(707) 526-2032
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2320 Midway Dr

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

  1. Peter Disalvo, ODOptometrist1114088796
  2. Kristen Glasgow, O.D.Optometrist1699047530
  3. Felix KaranjaOptician1891081287

Verify Ronald C. Harrison 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 OPT 6943 TPA    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 California license search

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Optometrist providers in California

There are 8,308 optometrist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 8,308 in California → Every provider in Santa Rosa →

Other optometrist records in California

  1. Douglas Aaseby, O.D.El Dorado Hills, CA1962715961
  2. Saloumeh Abadi, ODSanta Monica, CA1699258756
  3. Davoud AbbasiFillmore, CA1902361678
  4. Christopher Abbott, O.D.Santee, CA1417936220
  5. Sara Abboud, ODAlbany, CA1649052846
  6. Ghezal Abdali, O.D.Tustin, CA1770688640
  7. Nahid Abdali, O.D.San Ramon, CA1700210242
  8. Yasmeen AbdelfattahIrvine, CA1417786617
  9. Marina Abdou, ODUpland, CA1356017321
  10. Angela Abe, OPTModesto, CA1336108885

Common questions

What is Ronald C. Harrison, O.D.'s NPI number?

Ronald C. Harrison, O.D.'s National Provider Identifier (NPI) is 1588653752, issued on Oct 19, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Ronald C. Harrison, O.D. located?

The NPPES record lists a practice address at 2320 Midway Dr, Santa Rosa, CA, 95405. Phone: (707) 526-2020. Providers update this record themselves, so call before visiting.

How can I verify Ronald C. Harrison, O.D.'s license?

NPPES lists California license number OPT 6943 TPA, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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. 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.