Christyn Mai, O.D.
Optometrist · Garden Grove, CA
Christyn Mai, O.D. is an optometrist with a practice address in Garden Grove, California, and NPI 1518043645, issued on Oct 31, 2006. Check the license (California 12640T, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Christyn Mai
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 12640T CA
Self-reported in NPPES; status is on the state search - Practice location
- 12082 Brookhurst St, Garden Grove, CA 92840
- Phone
- (714) 636-9200
- Enumerated
- Oct 31, 2006
- Record last updated
- Jul 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (714) 636-9424
- Medicaid ID
- SD0126400 CA
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Verify Christyn Mai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 12640TCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average optometrist in 2024
15 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Christyn Mai among 8,308 optometrist records in California
Christyn Mai, 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. 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 fileNo · 43% of these records are
- Record last updated2021 · 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).
48 optometrist records list a practice address in Garden Grove
They are 48 of the 4,572 NPPES records with a practice address in Garden Grove, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Garden Grove → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Long Do, O.D.Garden Grove, CA 928401528027273
- Ann Gaylord, O.D.Garden Grove, CA 928401851561930
- Joel Marutani, ODGarden Grove, CA 928401619025624
- Dawn Miller, O.D.Garden Grove, CA 928401760435580
- Thy Nguyen, O.D.Garden Grove, CA 928401750490413
- Nancy Nguyen, O.D.Garden Grove, CA 928401689786378
- Mindy Nguyen, ODGarden Grove, CA 928401366739617
- Vincent Uy, O.D.Garden Grove, CA 928401093881518
Common questions
What is Christyn Mai, O.D.'s NPI number?
Christyn Mai, O.D.'s National Provider Identifier (NPI) is 1518043645, issued on Oct 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Christyn Mai, O.D. located?
The NPPES record lists a practice address at 12082 Brookhurst St, Garden Grove, CA, 92840. Phone: (714) 636-9200. Providers update this record themselves, so call before visiting.
How can I verify Christyn Mai, O.D.'s license?
NPPES lists California license number 12640T, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Christyn Mai, O.D. prescribe under Medicare Part D?
In 2024, Christyn Mai, O.D. had 15 Medicare Part D claims; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions 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.