Tammy Liu Na, O.D.
Optometrist · Irvine, CA
Tammy Liu Na, O.D. is an optometrist with a practice address in Irvine, California, and NPI 1346801933, issued on Jun 24, 2019. Check the license (California 34240TLG, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tammy Liu Na
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 34240TLG CA
Self-reported in NPPES; status is on the state search - Practice location
- 15333 Culver Dr Ste 690, Irvine, CA 92604
- Phone
- (949) 552-4271
- Enumerated
- Jun 24, 2019
- Record last updated
- Jul 27, 2026
- Medicare enrollment
- Enrolled (PECOS I20191112002043); accepts Medicare assignment
- Medical or professional school
- Southern California College Of Optometry, 2019
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 15333 Culver Dr Ste 690
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Wesley NakaoOptometrist1326833740
- Diana Yan, ODOptometrist1417433582
- Mei-Chuan Yu, O.D.Optometrist1376956995
Verify Tammy Liu Na in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 34240TLGCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $1,205.32
28 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupGardena, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tammy Liu Na among 8,308 optometrist records in California
Tammy Liu Na, 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 2019, is newer than 81% of them.
- NPI issued2019 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2019 · median 2008 among the 3,573 with a school on file
- Record last updated2026 · 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).
84 optometrist records list a practice address in Irvine
They are 84 of the 7,778 NPPES records with a practice address in Irvine, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Irvine → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Lena Chang, O.D.Irvine, CA 926041932120540
- Gita Ghadimi, OPTOMETRISTIrvine, CA 926041609968130
- Virgil Holland, O.D.Irvine, CA 926041942361225
- Raymond Huang, ODIrvine, CA 926041821136565
- Rebecca Kammer, ODIrvine, CA 926041093818403
- Paul Kim, ODIrvine, CA 926041275654857
- Stanton Kim, O.D.,FOAAIrvine, CA 926041497978357
- Christopher Likens, O.D.Irvine, CA 926041497827935
Common questions
What is Tammy Liu Na, O.D.'s NPI number?
Tammy Liu Na, O.D.'s National Provider Identifier (NPI) is 1346801933, issued on Jun 24, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Tammy Liu Na, O.D. located?
The NPPES record lists a practice address at 15333 Culver Dr Ste 690, Irvine, CA, 92604. Phone: (949) 552-4271. Providers update this record themselves, so call before visiting.
How can I verify Tammy Liu Na, O.D.'s license?
NPPES lists California license number 34240TLG, 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.