NPPES file of Aug 9, 2026

Mary Anne Baysac, D.D.S.

General Practice Dentistry · San Francisco, CA

Mary Anne Baysac, D.D.S. is a general practice dentistry with a practice address in San Francisco, California, and NPI 1699035444, issued on May 25, 2012. Check the license (California 52967, 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
1699035444
Name
Mary Anne Baysac
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
52967 CA
Self-reported in NPPES; status is on the state search
Practice location
4200 California St, San Francisco, CA 94118
Phone
(415) 668-0526
Enumerated
May 25, 2012
Record last updated
May 25, 2012 (not updated in 14 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 Mary Anne Baysac 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 52967
    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

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2.1 times the Medicare Part D claims of the average general practice dentistry in 2024

171 Medicare Part D claims for 77 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. 22 claims were for opioids.

  1. Mary Anne Baysac171
  2. Specialty average83

Most prescribed

  1. Amoxicillin74 claims
  2. Ibuprofen25 claims
  3. Azithromycin20 claims
  4. Acetaminophen-Codeine14 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: $563.36

57 payments; by number, the most common kind was food and beverage; the largest payer was Align Technology, 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. Mary Anne Baysac$563.36
  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.

Mary Anne Baysac among 17,852 general practice dentistry records in California

Mary Anne Baysac, D.D.S. is one of 17,852 general practice dentistry records with a practice address in California. 57% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 73% of them.

  • NPI issued2012 · 73% of these records are older, 25% newer
  • In a Medicare fileYes · 57% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2012 · 79% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

667 general practice dentistry records list a practice address in San Francisco

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

The 8 general practice dentistry records with the nearest ZIP codes

  1. Alla Alperin, DDSSan Francisco, CA 941181386772168
  2. Leonardo Arellano, D.D.S.San Francisco, CA 941181336169069
  3. Christina Chang, D.D.S.San Francisco, CA 941181669523775
  4. Michael Fox, DDSSan Francisco, CA 941181285722306
  5. Robert Ho, D.D.S.San Francisco, CA 941181962535310
  6. Shirley La, DDSSan Francisco, CA 941181891897930
  7. Roger Lee, DDSSan Francisco, CA 941181427176650
  8. Donald LimSan Francisco, CA 941181750463709

Common questions

What is Mary Anne Baysac, D.D.S.'s NPI number?

Mary Anne Baysac, D.D.S.'s National Provider Identifier (NPI) is 1699035444, issued on May 25, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Mary Anne Baysac, D.D.S. located?

The NPPES record lists a practice address at 4200 California St, San Francisco, CA, 94118. Phone: (415) 668-0526. Providers update this record themselves, so call before visiting.

How can I verify Mary Anne Baysac, D.D.S.'s license?

NPPES lists California license number 52967, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Mary Anne Baysac, D.D.S. prescribe under Medicare Part D?

In 2024, Mary Anne Baysac, D.D.S. had 171 Medicare Part D claims for 77 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), 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.