Ronald F. Janda, OD
Optometrist · Modesto, CA
Ronald F. Janda, OD is an optometrist with a practice address in Modesto, California, and NPI 1003843087, issued on Jun 27, 2006. Check the license (California OPT8748T, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ronald F. Janda
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- OPT8748T CA
Self-reported in NPPES; status is on the state search - Practice location
- 1011 Sylvan Ave, Modesto, CA 95350
- Phone
- (209) 575-2020
- Enumerated
- Jun 27, 2006
- Record last updated
- Feb 14, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (209) 758-5693
- Medicare enrollment
- Enrolled (PECOS I20070215000769); accepts Medicare assignment
- Medical or professional school
- University Alabama Birmingham - School Of Optometry, 1987
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 1011 Sylvan Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Omar Al AzzawiInternal Medicine Physician1407581085
- Kevin Craig, MDOphthalmology Physician1912089061
- Brian Fechter, MDOphthalmology Physician1225181399
- Maria Garnica Albor, MDInternal Medicine Physician1922661024
- Anthony Guida, MDOphthalmology Physician1346239803
- Kerry Horner, O.D.Optometrist1467441931
Verify Ronald F. Janda in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license OPT8748TCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $151.48
3 payments; by number, the most common kind was food and beverage; the largest payer was Johnson & Johnson Vision Care, 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.
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
- Hinkley Optometric CorporationModesto, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ronald F. Janda among 8,308 optometrist records in California
Ronald F. Janda, OD 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 66% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated1987 · median 2008 among the 3,573 with a school on file
- Record last updated2013 · 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).
Optometrist providers in California
There are 8,308 optometrist records in California.
All 8,308 in California → Every provider in Modesto → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- James Bragno, O.D.Modesto, CA 953501588666382
- Mark Harder, ODModesto, CA 953501093787459
- Kerry Horner, O.D.Modesto, CA 953501467441931
- Keith Kajioka, O.D.Modesto, CA 953501053370825
- Eric Kramer, O.D.Modesto, CA 953501669493110
- Kathryn Larsson, O.D.Modesto, CA 953501750375440
- Stanley Martin, ODModesto, CA 953501093704264
- Brandie Medina, O.D.Modesto, CA 953501851302723
Common questions
What is Ronald F. Janda, OD's NPI number?
Ronald F. Janda, OD's National Provider Identifier (NPI) is 1003843087, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ronald F. Janda, OD located?
The NPPES record lists a practice address at 1011 Sylvan Ave, Modesto, CA, 95350. Phone: (209) 575-2020. Providers update this record themselves, so call before visiting.
How can I verify Ronald F. Janda, OD's license?
NPPES lists California license number OPT8748T, 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. 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.