Ronald F. Janda, OD
- Medicare patients, 2024
- 62
- Industry payments
- $84
- Affiliated sites
- 3
- Medical groups
- 3
- State license
- 1
- Practice address
- 1019 16th St, Modesto, CA 95354
- Practice phone
- Call (209) 526-2737
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hinkley Optometric Corporation
Modesto, California
Find Ronald Janda's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Ronald F. Janda is an optometrist in Modesto, California
Ronald Janda practices at Hinkley Optometric Corporation in Modesto, California.
Ronald Janda's NPI, 1003843087, was assigned on June 27, 2006. Ronald Janda graduated from University Alabama Birmingham - School of Optometry in 1987. Ronald Janda holds California license OPT8748T.
- NPI
- 1003843087NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7113929407
- NPI enumeration date
- June 27, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (209) 526-2737
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Ronald F. Janda practices at Hinkley Optometric Corporation in Modesto, California
Ronald Janda's primary practice is Hinkley Optometric Corporation, at 1019 16th St, Modesto, CA 95354 in Stanislaus County. The practice phone is (209) 526-2737.
- Hinkley Optometric Corporation1019 16th St, Modesto, CA 95354 · Stanislaus CountyPhone(209) 526-2737
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Ronald F. Janda is affiliated with 4 sites of care and 3 medical groups
Ronald Janda's primary practice is Hinkley Optometric Corporation in Modesto, California. Dmand AI also links Ronald Janda to 3 group practices and clinics and 3 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Ronald F. Janda's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Ronald Janda practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hinkley Optometric Corporation | Available with a free account |
| +3 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Ronald F. Janda is one of 7,206 optometrists in California
Optometrist is Ronald Janda's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Ronald Janda is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Ronald Janda
Counts of optometrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Ronald F. Janda treated 62 Medicare patients in 2024, average age 77
CMS counts 62 Medicare patients who saw Ronald Janda in 2024. The largest group is 75 to 84, with 29 patients. 75% of them have high blood pressure, and 74% have high cholesterol. Their average risk score is 1.24, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Ronald Janda's median patient age at 71, with 61% women.
Ronald Janda's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Ronald Janda's Medicare patients by sex, 2024
- Women3861%
- Men2439%
Chronic conditions among Ronald Janda's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Diabetes45%
- Arthritis44%
- Chronic kidney disease42%
- Ischemic heart disease26%
- Heart failure19%
Share of Medicare patients with each condition. A patient can have several.
Ronald Janda's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Ronald F. Janda takes part in Medicare
Ronald Janda accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Ronald F. Janda received $84 in industry payments in 2025
CMS Open Payments shows 1 general payment to Ronald Janda from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $84.
Companies that paid Ronald Janda the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Ronald F. Janda graduated from University Alabama Birmingham - School of Optometry
Ronald Janda graduated from University Alabama Birmingham - School of Optometry in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Ronald F. Janda's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Ronald F. Janda
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Ronald F. Janda's NPI number?
Ronald F. Janda's NPI number is 1003843087. It was assigned on June 27, 2006, and it is active in the NPI Registry.
What does Ronald F. Janda specialize in?
Ronald F. Janda is an optometrist in Modesto, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Ronald F. Janda practice?
Ronald Janda practices at 1019 16th St, Modesto, CA 95354. Ronald Janda's primary practice is Hinkley Optometric Corporation in Modesto, California. Dmand AI also links Ronald Janda to 3 group practices and clinics and 3 medical groups.
What is Ronald F. Janda's office phone number?
The practice phone on file for Ronald Janda is (209) 526-2737.
What is Ronald F. Janda's medical license number?
Ronald Janda holds California license OPT8748T.
Does Ronald F. Janda accept Medicare?
Yes. CMS lists Ronald Janda as accepting Medicare assignment.
How many Medicare patients does Ronald F. Janda see?
CMS counts 62 Medicare patients who saw Ronald Janda in 2024, with an average age of 77.
Where did Ronald F. Janda go to medical school?
Ronald Janda graduated from University Alabama Birmingham - School of Optometry in 1987.
Has Ronald F. Janda received payments from drug or device companies?
CMS Open Payments shows $84 in general payments to Ronald Janda from 1 company from 2025 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Ronald F. Janda been practicing?
Ronald Janda graduated from medical school in 1987, 39 years ago.
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