NPPES file of Aug 9, 2026

Christopher Tong, OD

Optometrist · San Francisco, CA

Christopher Tong, OD is an optometrist with a practice address in San Francisco, California, and NPI 1184269128, issued on Nov 13, 2019. Check the license (California 34369, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1184269128
Name
Christopher Tong
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
34369 CA
Self-reported in NPPES; status is on the state search
Practice location
899 Washington St Ste 6, San Francisco, CA 94108
Phone
(415) 781-4524
Enumerated
Nov 13, 2019
Record last updated
Apr 28, 2021 (not updated in 5 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Christopher Tong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 34369
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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94% fewer Medicare Part D claims than the average optometrist in 2024

18 Medicare Part D claims for 13 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.

  1. Christopher Tong18
  2. Specialty average277

Most prescribed

  1. Azelastine Hcl14 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: $90.12

3 payments; by number, the most common kind was food and beverage; the largest payer was CooperVision 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.

  1. Christopher Tong$90.12
  2. Specialty average$769.99

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Christopher Tong among 8,308 optometrist records in California

Christopher Tong, 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 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 fileNo · 43% of these records are
  • 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).

Optometrist providers in California

There are 8,308 optometrist records in California.

The 8 optometrist records with the nearest ZIP codes

  1. Rochelle Blumenfeld, O.D.San Francisco, CA 941081679640031
  2. Karen Brandreth, O.D.San Francisco, CA 941081548385412
  3. Alan Chan, O.D.San Francisco, CA 941081285758813
  4. Bradford Chang, O.D.San Francisco, CA 941081770658619
  5. Clifford Chang, O.D.San Francisco, CA 941081558539007
  6. Tina Cheung, O.D.San Francisco, CA 941081306213160
  7. Michael Lee, O.D.San Francisco, CA 941081841359684
  8. Jeffrey Lem, O.D.San Francisco, CA 941081336209733

Common questions

What is Christopher Tong, OD's NPI number?

Christopher Tong, OD's National Provider Identifier (NPI) is 1184269128, issued on Nov 13, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Christopher Tong, OD located?

The NPPES record lists a practice address at 899 Washington St Ste 6, San Francisco, CA, 94108. Phone: (415) 781-4524. Providers update this record themselves, so call before visiting.

How can I verify Christopher Tong, OD's license?

NPPES lists California license number 34369, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Christopher Tong, OD prescribe under Medicare Part D?

In 2024, Christopher Tong, OD had 18 Medicare Part D claims for 13 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.