William H. Ridder, OD
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 5460 E La Palma Ave, Anaheim, CA 92807
- Practice phone
- Call (714) 463-7500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Marshall B. Ketchum University
Anaheim, California
Find William Ridder'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.
William H. Ridder is an optometrist in Anaheim, California
William Ridder practices at Marshall B. Ketchum University in Anaheim, California.
William Ridder's NPI, 1972606382, was assigned on September 7, 2006. William Ridder holds California license 9451TPA.
- NPI
- 1972606382NPI Registry (opens in a new tab)
- NPI enumeration date
- September 7, 2006
- NPI status
- Active
- Practice phone
- (714) 463-7500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
William H. Ridder practices at Marshall B. Ketchum University in Anaheim, California
William Ridder's primary practice is Marshall B. Ketchum University, at 5460 E La Palma Ave, Anaheim, CA 92807 in Orange County. The practice phone is (714) 463-7500.
- Marshall B. Ketchum University5460 E La Palma Ave, Anaheim, CA 92807 · Orange CountyPhone(714) 463-7500
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
William H. Ridder is affiliated with 2 sites of care and 1 medical group
William Ridder's primary practice is Marshall B. Ketchum University in Anaheim, California. Dmand AI also links William Ridder to 1 group practice or clinic and 1 medical group, 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 William H. Ridder's practice
Dmand AI tracks the electronic health record (EHR) system at each site where William Ridder practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Marshall B. Ketchum University | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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William H. Ridder is one of 7,206 optometrists in California
Optometrist is William Ridder's primary specialty in the NPI Registry, under taxonomy code 152W00000X. William Ridder is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near William Ridder
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
William H. Ridder's patients have a median age of 31
Across all payers, Dmand AI patient panel data puts William Ridder's median patient age at 31, with 75% women.
William Ridder's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 31
Patient panel by sex, all payers
- Women75%
- Men25%
Source: Dmand AI Patient Panel Data
Sources for William H. Ridder'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 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 William H. Ridder
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is William H. Ridder's NPI number?
William H. Ridder's NPI number is 1972606382. It was assigned on September 7, 2006, and it is active in the NPI Registry.
What does William H. Ridder specialize in?
William H. Ridder is an optometrist in Anaheim, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does William H. Ridder practice?
William Ridder practices at 5460 E La Palma Ave, Anaheim, CA 92807. William Ridder's primary practice is Marshall B. Ketchum University in Anaheim, California. Dmand AI also links William Ridder to 1 group practice or clinic and 1 medical group.
What is William H. Ridder's office phone number?
The practice phone on file for William Ridder is (714) 463-7500.
What is William H. Ridder's medical license number?
William Ridder holds California license 9451TPA.
How long has William H. Ridder been practicing?
William Ridder's NPI was assigned in 2006.
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