Registry data as of Aug 27, 2026

Colin Au, D.D.S.

General Practice Dentistry · San Francisco, CA

Colin Au, D.D.S. is a general practice dentistry with a practice address in San Francisco, California, and NPI 1366689804, issued on Jan 20, 2009. Check the license (California 57804, 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1366689804
Name
Colin Au
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
57804 CA
Self-reported in NPPES; status is on the state search
Practice location
2460 Mission St, San Francisco, CA 94110
Phone
(415) 401-7380
Enumerated
Jan 20, 2009
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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Also registered at 2460 Mission St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Cristina Chavez, D.D.S.General Practice Dentistry1891941803
  2. Francis Chung, DDSOral and Maxillofacial Pathology Dentistry1205860665
  3. Stephanie Cowles, CMTMassage Therapist1376712711
  4. Vivien Golcwajg, CMTMassage Therapist1861766396
  5. Kara Romanko, L.AC., MSTCMAcupuncturist1982776043
  6. Jose Rosas, M.D.Internal Medicine Physician1699811323

Verify Colin Au 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 57804
    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
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

77% fewer Medicare Part D claims than the average general practice dentistry in 2024

19 Medicare Part D claims for 14 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.

  1. Colin Au19
  2. Specialty average83

Most prescribed

  1. Amoxicillin13 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: $61.42

3 payments, mostly food and beverage; the largest payer was A-dec, Inc.. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Colin Au$61.42
  2. Specialty average$597.01

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

667 general practice dentistry records list a San Francisco practice address

They are 667 of the 38,143 NPPES records with a San Francisco practice address, and 17,852 general practice dentistry records in California.

Other general practice dentistry records in California

  1. Ronald Aanerud, DDSSan Diego, CA1871752931
  2. Steven Aaronson, D.D.S.Santa Monica, CA1265455851
  3. Shahrzad Aarup, DDSPomona, CA1265784367
  4. Al Abad, DDSSan Jose, CA1104992148
  5. Erwin Abad, D.D.S.Canoga Park, CA1861590093
  6. Francine Abad, DDSSan Francisco, CA1942700810
  7. Maria Abad, D.D.S.Norwalk, CA1215006754
  8. Mark Ryan Abad, DDSDaly City, CA1770357394
  9. Sanaz Abadi, D.D.S.Los Angeles, CA1699934026
  10. Ernesto Abadilla, DDSPalm Desert, CA1508063801

Common questions

What is Colin Au, D.D.S.'s NPI number?

Colin Au, D.D.S.'s National Provider Identifier (NPI) is 1366689804, issued on Jan 20, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Colin Au, D.D.S. located?

The NPPES record lists a practice address at 2460 Mission St, San Francisco, CA, 94110. Phone: (415) 401-7380. Providers update this record themselves, so call before visiting.

How can I verify Colin Au, D.D.S.'s license?

NPPES lists California license number 57804, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Colin Au, D.D.S. prescribe under Medicare Part D?

In 2024, Colin Au, D.D.S. had 19 Medicare Part D claims for 14 beneficiaries; the average among general practice dentistry prescribers was 83. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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) 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 27, 2026.