Wendy Kim Duncan, OD
Optometrist · Fontana, CA
Wendy Kim Duncan, OD is an optometrist with a practice address in Fontana, California, and NPI 1538152145, issued on Aug 30, 2005. Check the license (California 7522T, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Wendy Kim Duncan
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 7522T CA
Self-reported in NPPES; status is on the state search - Practice location
- 8190 Mango Ave, Fontana, CA 92335
- Phone
- (909) 350-2020
- Enumerated
- Aug 30, 2005
- Record last updated
- Aug 30, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (909) 350-2341
- Medicaid ID
- SD0075220 CA
- Medicare enrollment
- Enrolled (PECOS I20040324001777); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 8190 Mango Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Enos, O.D.Optometrist1134560477
- Cathy Nguyen, O.D.Optometrist1912260878
Verify Wendy Kim Duncan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 7522TCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Cathy Nguyen OD A Professional Optometric CorporationFontana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Wendy Kim Duncan among 8,308 optometrist records in California
Wendy Kim Duncan, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated1982 · 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).
52 optometrist records list a practice address in Fontana
They are 52 of the 3,012 NPPES records with a practice address in Fontana, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Fontana → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Christopher Albaugh, ODFontana, CA 923351720155567
- Arlene Arcega, ODFontana, CA 923351093882839
- Gary Byers, ODFontana, CA 923351629145479
- Kelly Delange, ODFontana, CA 923351285701029
- Michael Ferreri, ODFontana, CA 923351245307099
- Frank Grigsby, ODFontana, CA 923351902973746
- Gary Jacobson, ODFontana, CA 923351073680815
- Douglas Leo, O.D.Fontana, CA 923351215012869
Common questions
What is Wendy Kim Duncan, OD's NPI number?
Wendy Kim Duncan, OD's National Provider Identifier (NPI) is 1538152145, issued on Aug 30, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Wendy Kim Duncan, OD located?
The NPPES record lists a practice address at 8190 Mango Ave, Fontana, CA, 92335. Phone: (909) 350-2020. Providers update this record themselves, so call before visiting.
How can I verify Wendy Kim Duncan, OD's license?
NPPES lists California license number 7522T, 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.