Dorothy Karen Ma
Optometrist · Palo Alto, CA
Dorothy Karen Ma is an optometrist with a practice address in Palo Alto, California, and NPI 1295301356, issued on May 31, 2021. Check the license (California 34848, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Dorothy Karen Ma
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 34848 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3801 Miranda Ave, Palo Alto, CA 94304
- Phone
- (650) 493-5000
- Enumerated
- May 31, 2021
- Record last updated
- Mar 20, 2022
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 3801 Miranda Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Dorothy Karen Ma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 34848Check 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: $146.82
1 payment: food and beverage; the largest payer was Tarsus Pharmaceuticals, 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.
Dorothy Karen Ma among 8,308 optometrist records in California
Dorothy Karen Ma 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 2021, is newer than 86% of them.
- NPI issued2021 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2022 · 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).
Optometrist providers in California
There are 8,308 optometrist records in California.
All 8,308 in California → Every provider in Palo Alto → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Steven Binder, O.D.Palo Alto, CA 943041225172182
- Heidi Flyg, O.D.Palo Alto, CA 943041891949830
- Kim Ho, O.D.Palo Alto, CA 943041679687982
- Heather Jonasson, O.D.Palo Alto, CA 943041043403017
- Zibya Karolia, O.D.Palo Alto, CA 943041659566065
- Jennine Kirby, O.D.Palo Alto, CA 943041366470874
- Mimi KwongPalo Alto, CA 943041154331957
- Tuyetha Mai, O.D.Palo Alto, CA 943041619939980
Common questions
What is Dorothy Karen Ma's NPI number?
Dorothy Karen Ma's National Provider Identifier (NPI) is 1295301356, issued on May 31, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Dorothy Karen Ma located?
The NPPES record lists a practice address at 3801 Miranda Ave, Palo Alto, CA, 94304. Phone: (650) 493-5000. Providers update this record themselves, so call before visiting.
How can I verify Dorothy Karen Ma's license?
NPPES lists California license number 34848, 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.