NPPES file of Aug 9, 2026

Gregory Chan, DDS

Periodontics · Sacramento, CA

Gregory Chan, DDS is a periodontics with a practice address in Sacramento, California, and NPI 1508419797, issued on Jul 17, 2019. Check the license (California DDS107368, 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
1508419797
Name
Gregory Chan
Credential
DDS
Primary taxonomy
Periodontics 1223P0300X
License numbers
DDS107368 CA
DN1858442 MA
Self-reported in NPPES; status is on the state search
Practice location
8211 Bruceville RD Ste 155, Sacramento, CA 95823
Phone
(916) 525-7635
Enumerated
Jul 17, 2019
Record last updated
Aug 9, 2022
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 8211 Bruceville RD Ste 155

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

  1. Alice Chun, DDSGeneral Practice Dentistry1922521814
  2. Supreet Dhillon, B.D.S., DMDGeneral Practice Dentistry1134580541
  3. Shakiba Feroz, D.D.SDentist1487037776
  4. Svetlana Guevara-Lara, DDSGeneral Practice Dentistry1225504574
  5. Harjot Kaur, DDSDentist1255162491
  6. Grace Min, DMDGeneral Practice Dentistry1881755791

Verify Gregory Chan 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 DDS107368    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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18% fewer Medicare Part D claims than the average periodontics in 2024

226 Medicare Part D claims for 76 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. 11 claims were for opioids.

  1. Gregory Chan226
  2. Specialty average277

Most prescribed

  1. Chlorhexidine Gluconate85 claims
  2. Amoxicillin49 claims
  3. Ibuprofen44 claims
  4. Azithromycin21 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: $150.00

1 payment: education; 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. Gregory Chan$150.00
  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.

Periodontics providers in California

There are 929 periodontics records in California.

All 929 in California → Every provider in Sacramento →

Other periodontics records in California

  1. Bruce Abe, D.D.S.San Diego, CA1235104688
  2. Kenneth Abe, DDSLos Altos, CA1912039967
  3. Michael Abelson, D.D.S.,M.S.Valencia, CA1225235617
  4. Marwa Abulhasan, DMD, MS, MMMLos Angeles, CA1932453198
  5. Sonali Acharya, BDS, MDS, DMDSanta Rosa, CA1396418604
  6. Christopher Acone, DDSTorrance, CA1659576551
  7. Mustafa AdamiRedlands, CA1750739983
  8. Thomas Adamich, DDSHuntington Beach, CA1063579670
  9. Bijan Afar, DDSLos Angeles, CA1700954385
  10. Caitlyn Affrunti, D.D.S., M.S.Redlands, CA1316316938

Common questions

What is Gregory Chan, DDS's NPI number?

Gregory Chan, DDS's National Provider Identifier (NPI) is 1508419797, issued on Jul 17, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Chan, DDS located?

The NPPES record lists a practice address at 8211 Bruceville RD Ste 155, Sacramento, CA, 95823. Phone: (916) 525-7635. Providers update this record themselves, so call before visiting.

How can I verify Gregory Chan, DDS's license?

NPPES lists California license number DDS107368, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Gregory Chan, DDS prescribe under Medicare Part D?

In 2024, Gregory Chan, DDS had 226 Medicare Part D claims for 76 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.