Eric S. Tsai, D.M.D.
Periodontics · Walnut Creek, CA
Eric S. Tsai, D.M.D. is a periodontics with a practice address in Walnut Creek, California, and NPI 1841369386, issued on Nov 7, 2006. Check the license (California 47574, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Eric S. Tsai
- Credential
- D.M.D.
- Primary taxonomy
- Periodontics 1223P0300X
- License number
- 47574 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1855 San Miguel Drive, Walnut Creek, CA 94596
- Phone
- (925) 944-1033
- Enumerated
- Nov 7, 2006
- Record last updated
- Dec 21, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (925) 944-1039
- Entity
- Type 1 · individual
8 nearest periodontics records → All 929 in California → Look up another NPI →
Also registered at 1855 San Miguel Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Duane Spencer, DDSPediatric Dentistry1992847289
Verify Eric S. Tsai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 47574Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average periodontics in 2024
591 Medicare Part D claims for 145 beneficiaries, against an average of 277 among the 4,191 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 138 claims were for opioids.
Most prescribed
- Ibuprofen147 claims
- Chlorhexidine Gluconate145 claims
- Hydrocodone-Acetaminophen129 claims
- Amoxicillin101 claims
- Clindamycin Hcl24 claims
- Dexamethasone11 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: $32.13
2 payments; by number, the most common kind was food and beverage; the largest payer was Straumann USA LLC. The 2,966 providers of this specialty with any payment received $1,338.41 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.
Eric S. Tsai among 929 periodontics records in California
Eric S. Tsai, D.M.D. is one of 929 periodontics records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 71% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2009 · 78% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Periodontics providers in California
There are 929 periodontics records in California.
All 929 in California → Every provider in Walnut Creek → Periodontics nationwide →
The 8 periodontics records with the nearest ZIP codes
- Jane Jiao, DDSWalnut Creek, CA 945961407264591
- Etienne Lacrampe, D.M.D.Walnut Creek, CA 945961952529661
- Robert Marks, DDSWalnut Creek, CA 945961265467518
- Dwayne Martin, DDSWalnut Creek, CA 945961558446773
- Stephen Reid, D.D.S.Walnut Creek, CA 945961295872299
- Karl Engdahl, DDS. PRACTICE LIMITEWalnut Creek, CA 945951619302692
- John Bruns, D.D.S.Walnut Creek, CA 945981346452539
- Rose Dastmalchi, D.D.S.Walnut Creek, CA 945981487886214
Common questions
What is Eric S. Tsai, D.M.D.'s NPI number?
Eric S. Tsai, D.M.D.'s National Provider Identifier (NPI) is 1841369386, issued on Nov 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Eric S. Tsai, D.M.D. located?
The NPPES record lists a practice address at 1855 San Miguel Drive, Walnut Creek, CA, 94596. Phone: (925) 944-1033. Providers update this record themselves, so call before visiting.
How can I verify Eric S. Tsai, D.M.D.'s license?
NPPES lists California license number 47574, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Eric S. Tsai, D.M.D. prescribe under Medicare Part D?
In 2024, Eric S. Tsai, D.M.D. had 591 Medicare Part D claims for 145 beneficiaries; the average among periodontics 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.