Karin Woo Rardin, OD
Optometrist · Fremont, CA
Karin Woo Rardin, OD is an optometrist with a practice address in Fremont, California, and NPI 1457320921, issued on Mar 16, 2006. Check the license (California 12254T, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karin Woo Rardin
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 12254T CA
Self-reported in NPPES; status is on the state search - Practice location
- 39355 California St, Fremont, CA 94538
- Phone
- (510) 744-2010
- Enumerated
- Mar 16, 2006
- Record last updated
- Dec 16, 2024
- Fax
- (510) 744-2015
- Medicaid ID
- GR0022890 CA
- Medicare enrollment
- Enrolled (PECOS I20050825000651); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 39355 California St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gina Alexander, O.D.Optometrist1962870089
- Deborah Chew, ODOptometrist1821057951
- Brian Gin, O.D.Optometrist1902813322
- Kerry Huang, DCChiropractor1255888574
- Clifford Leong, O.D.Optometrist1851585624
- Cindy Sakihara, ODOptometrist1699734715
Verify Karin Woo Rardin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 12254TCheck 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: $311.30
6 payments; by number, the most common kind was food and beverage; the largest payer was Johnson & Johnson Vision Care, 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
- Stella Levin, O.D. A Professional CorporationFremont, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karin Woo Rardin among 8,308 optometrist records in California
Karin Woo Rardin, 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 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 fileYes · 43% of these records are
- Graduated2002 · median 2008 among the 3,573 with a school on file
- Record last updated2024 · 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).
75 optometrist records list a practice address in Fremont
They are 75 of the 4,749 NPPES records with a practice address in Fremont, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Fremont → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Harry Chan, O.D.Fremont, CA 945381750331237
- Deborah Chew, ODFremont, CA 945381821057951
- Sara Chiu, O.D.Fremont, CA 945381982701595
- Victor Gin, ODFremont, CA 945381972562098
- Brian Gin, O.D.Fremont, CA 945381902813322
- Robert Halupka, ODFremont, CA 945381821187956
- Katherine Harano, O.D.Fremont, CA 945381417947110
- Virginia Ko, O.D.Fremont, CA 945381982792651
Common questions
What is Karin Woo Rardin, OD's NPI number?
Karin Woo Rardin, OD's National Provider Identifier (NPI) is 1457320921, issued on Mar 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karin Woo Rardin, OD located?
The NPPES record lists a practice address at 39355 California St, Fremont, CA, 94538. Phone: (510) 744-2010. Providers update this record themselves, so call before visiting.
How can I verify Karin Woo Rardin, OD's license?
NPPES lists California license number 12254T, 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.