Ellen Ong
Optometrist · Burlingame, CA
Ellen Ong is an optometrist with a practice address in Burlingame, California, and NPI 1639737166, issued on May 30, 2019. Check the license (California 34486TLG, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ellen Ong
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 34486TLG CA
Self-reported in NPPES; status is on the state search - Practice location
- 1720 EL Camino Real Ste 235, Burlingame, CA 94010
- Phone
- (650) 259-0300
- Enumerated
- May 30, 2019
- Record last updated
- Dec 9, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200716000367); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 1720 EL Camino Real Ste 235
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Barbara-Dinh Nguyen, ODOptometrist1548976988
- Suzanne Quo, O.D.Optometrist1639223753
Verify Ellen 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 34486TLGCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average optometrist in 2024
30 Medicare Part D claims for 14 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 43% of 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.
Industry payments in 2024: $259.45
2 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. 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
- Bay Area Community HealthFremont, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ellen Ong among 8,308 optometrist records in California
Ellen Ong 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 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).
18 optometrist records list a practice address in Burlingame
They are 18 of the 1,299 NPPES records with a practice address in Burlingame, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Burlingame → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Katherine Aquino, O.D.Burlingame, CA 940101770639825
- Lucy Asai, O.D.Burlingame, CA 940101639225766
- Mary Ellen Bailey, O.D.Burlingame, CA 940101033263058
- David Brew, O.D.Burlingame, CA 940101528151503
- Pamela Fong, O.D.Burlingame, CA 940101568469161
- Shirley Fong, O.D.Burlingame, CA 940101003959693
- Tetsuji Kita, O.D.Burlingame, CA 940101255366829
- Jennifer Lo, O.D.Burlingame, CA 940101326158320
Common questions
What is Ellen Ong's NPI number?
Ellen Ong's National Provider Identifier (NPI) is 1639737166, issued on May 30, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Ellen Ong located?
The NPPES record lists a practice address at 1720 EL Camino Real Ste 235, Burlingame, CA, 94010. Phone: (650) 259-0300. Providers update this record themselves, so call before visiting.
How can I verify Ellen Ong's license?
NPPES lists California license number 34486TLG, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Ellen Ong prescribe under Medicare Part D?
In 2024, Ellen Ong had 30 Medicare Part D claims for 14 beneficiaries; 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.