NPPES file of Aug 9, 2026

Dennis Shing Der Chen, D.D.S.

Periodontics · Cupertino, CA

Dennis Shing Der Chen, D.D.S. is a periodontics with a practice address in Cupertino, California, and NPI 1871627943, issued on Mar 14, 2007. Check the license (California 34475, 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
1871627943
Name
Dennis Shing Der Chen
Credential
D.D.S.
Primary taxonomy
Periodontics 1223P0300X
License number
34475 CA
Self-reported in NPPES; status is on the state search
Practice location
10430 S DE Anza Blvd, Cupertino, CA 95014
Phone
(408) 996-3191
Enumerated
Mar 14, 2007
Record last updated
Mar 9, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(408) 996-3928
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 10430 S DE Anza Blvd

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

  1. Tiffany Chang, ODOptometrist1336176080
  2. Tsung Chang Chen, M.D.Pulmonary Disease Physician1669546651
  3. Jeffrey Ching, D.D.S.General Practice Dentistry1144318239
  4. Show Chu, D.D.S.Dentist1881863249
  5. Leon Davis, D.D.SGeneral Practice Dentistry1083718431
  6. Andrea Hirsch, PH.D.Clinical Psychologist1982748372

Verify Dennis Shing Der Chen 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 34475
    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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45% fewer Medicare Part D claims than the average periodontics in 2024

151 Medicare Part D claims for 60 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.

  1. Dennis Chen151
  2. Specialty average277

Most prescribed

  1. Chlorhexidine Gluconate69 claims
  2. Amoxicillin31 claims
  3. Amoxicillin-Clavulanate Potass29 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: $179.61

9 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.

  1. Dennis Chen$179.61
  2. Specialty average$1,338.41

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

Dennis Shing Der Chen among 929 periodontics records in California

Dennis Shing Der Chen, D.D.S. 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 2007, is newer than 29% of them.

  • NPI issued2007 · 29% of these records are older, 40% 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 updated2020 · 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.

The 8 periodontics records with the nearest ZIP codes

  1. Marilyn Jespersen, DDSCupertino, CA 950141003938242
  2. Richard Kao, D.D.S., PH.DCupertino, CA 950141235206442
  3. Thomas Legan, D.D.S.Capitola, CA 950101164643276
  4. Joyce Litch, DDS MSDCampbell, CA 950081366531378
  5. Ehsan Rezvan, DDS, MSGilroy, CA 950201902985492
  6. Ming Fai Tong, D.D.S., M.S.D.Gilroy, CA 950201346362274
  7. Jeremy Ueno, D.M.D.Campbell, CA 950081659507432
  8. John Avera, D.D.S.Aptos, CA 950031043301609

Common questions

What is Dennis Shing Der Chen, D.D.S.'s NPI number?

Dennis Shing Der Chen, D.D.S.'s National Provider Identifier (NPI) is 1871627943, issued on Mar 14, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Dennis Shing Der Chen, D.D.S. located?

The NPPES record lists a practice address at 10430 S DE Anza Blvd, Cupertino, CA, 95014. Phone: (408) 996-3191. Providers update this record themselves, so call before visiting.

How can I verify Dennis Shing Der Chen, D.D.S.'s license?

NPPES lists California license number 34475, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Dennis Shing Der Chen, D.D.S. prescribe under Medicare Part D?

In 2024, Dennis Shing Der Chen, D.D.S. had 151 Medicare Part D claims for 60 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.