Young Sun Chao, O.D.
Corneal and Contact Management Optometrist · Oakland, CA
Young Sun Chao, O.D. is a corneal and contact management optometrist with a practice address in Oakland, California, and NPI 1649465774, issued on Sep 11, 2007. Check the license (California 13325, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Young Sun Chao
- Credential
- O.D.
- Primary taxonomy
- Corneal and Contact Management Optometrist 152WC0802X
- License number
- 13325 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3060 E 9TH St, Oakland, CA 94601
- Phone
- (510) 535-4141
- Enumerated
- Sep 11, 2007
- Record last updated
- Feb 11, 2022
- Entity
- Type 1 · individual
Also registered at 3060 E 9TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karen Chester, ODOptometrist1003919309
- Joel Munoz, ODOptometrist1952032971
- Jennifer ParkOptometrist1467879791
- Kresta Ria TabaranzaOptometrist1730812926
Verify Young Sun Chao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 13325Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average corneal and contact management optometrist in 2024
53 Medicare Part D claims for 29 beneficiaries, against an average of 225 among the 585 providers of this specialty who prescribed in Part D.
Most prescribed
- Latanoprost16 claims
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.
Corneal and Contact Management Optometrist providers in California
There are 161 corneal and contact management optometrist records in California.
Other corneal and contact management optometrist records in California
- Sanaz Aboutalebi-Simon, O.D.Antioch, CA1033319215
- Michael Adey, O.D.Mountain View, CA1427108026
- Mariam Alkawally, ODBakersfield, CA1710597240
- M. Linda Arboleda, O.D.Huntington Beach, CA1073632741
- Steven Arnquist, O. D.Hemet, CA1376673889
- John Arvizu, O.D.Gilroy, CA1326195538
- Paul Atwal, PAUL ATWAL, O.D.Merced, CA1457542540
- Lilia BabakhanStevenson Ranch, CA1033636766
- Charles Bailey, O.D.Berkeley, CA1407993017
- Alisa Barnes, O.D.Los Angeles, CA1275503476
Common questions
What is Young Sun Chao, O.D.'s NPI number?
Young Sun Chao, O.D.'s National Provider Identifier (NPI) is 1649465774, issued on Sep 11, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Young Sun Chao, O.D. located?
The NPPES record lists a practice address at 3060 E 9TH St, Oakland, CA, 94601. Phone: (510) 535-4141. Providers update this record themselves, so call before visiting.
How can I verify Young Sun Chao, O.D.'s license?
NPPES lists California license number 13325, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Young Sun Chao, O.D. prescribe under Medicare Part D?
In 2024, Young Sun Chao, O.D. had 53 Medicare Part D claims for 29 beneficiaries; the average among corneal and contact management optometrist prescribers was 225. 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.