Cathy Ong, O.D.
Optometrist · Tustin, CA
Cathy Ong, O.D. is an optometrist with a practice address in Tustin, California, and NPI 1801123518, issued on Nov 17, 2009. Check the license (California 13872, 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.
- Name
- Cathy Ong
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 13872 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15501 Sonora St, Tustin, CA 92782
- Phone
- (949) 654-2066
- Enumerated
- Nov 17, 2009
- Record last updated
- Nov 17, 2009 (not updated in 17 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Verify Cathy Ong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 13872Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Cathy Ong among 8,308 optometrist records in California
Cathy Ong, O.D. 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 not. Its NPI, issued in 2009, is newer than 57% of them.
- NPI issued2009 · 57% of these records are older, 41% newer
- In a Medicare fileNo · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2009 · 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).
33 optometrist records list a practice address in Tustin
They are 33 of the 2,221 NPPES records with a practice address in Tustin, and 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 Tustin → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Susan Chen, O.D.Tustin, CA 927821427101021
- Lulu Kim, ODTustin, CA 927821194878744
- Robert KleinbergTustin, CA 927821598815052
- Megan Lieu, O.D.Tustin, CA 927821851443998
- Negar Mosallanejad, ODTustin, CA 927821598652612
- Amy Ngo, ODTustin, CA 927821952886988
- Ann Nguyen, ODTustin, CA 927821831226497
- Yasmin Pishvaiy, ODTustin, CA 927821972340271
Common questions
What is Cathy Ong, O.D.'s NPI number?
Cathy Ong, O.D.'s National Provider Identifier (NPI) is 1801123518, issued on Nov 17, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Cathy Ong, O.D. located?
The NPPES record lists a practice address at 15501 Sonora St, Tustin, CA, 92782. Phone: (949) 654-2066. Providers update this record themselves, so call before visiting.
How can I verify Cathy Ong, O.D.'s license?
NPPES lists California license number 13872, 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.
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.