NPPES file of Aug 9, 2026

Sean Cecil Lee, D.D.S.

General Practice Dentistry · Upland, CA

Sean Cecil Lee, D.D.S. is a general practice dentistry with a practice address in Upland, California, and NPI 1366614554, issued on Mar 27, 2008. Check the license (California 52750, 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
1366614554
Name
Sean Cecil Lee
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
52750 CA
Self-reported in NPPES; status is on the state search
Practice location
440 N Mountain Ave Ste 101, Upland, CA 91786
Phone
(909) 982-8891
Enumerated
Mar 27, 2008
Record last updated
Mar 27, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(909) 931-3284
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 440 N Mountain Ave Ste 101

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

  1. Rachel Johnson, D.D.SDentist1366696262

Verify Sean Cecil Lee 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 52750
    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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83% fewer Medicare Part D claims than the average general practice dentistry in 2024

14 Medicare Part D claims for 13 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Sean Lee14
  2. Specialty average83

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.

Sean Cecil Lee among 17,852 general practice dentistry records in California

Sean Cecil Lee, 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 2008, is newer than 60% of them.

  • NPI issued2008 · 60% of these records are older, 35% 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 updated2008 · 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).

59 general practice dentistry records list a practice address in Upland

They are 59 of the 1,846 NPPES records with a practice address in Upland, and 17,852 general practice dentistry records in California.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Elenor Aguilar, DDSUpland, CA 917861184727174
  2. Byron Bernstine, DDSUpland, CA 917861447323902
  3. Nelson Butay, DDSUpland, CA 917861992898498
  4. Rock Chapman, DDSUpland, CA 917861811060296
  5. Eric Chiang, D.D.S.Upland, CA 917861407956162
  6. William Domb, DMDUpland, CA 917861215901335
  7. Steven Fraker, DDSUpland, CA 917861538175781
  8. John Greenwood, DDSUpland, CA 917861891898201

Common questions

What is Sean Cecil Lee, D.D.S.'s NPI number?

Sean Cecil Lee, D.D.S.'s National Provider Identifier (NPI) is 1366614554, issued on Mar 27, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Sean Cecil Lee, D.D.S. located?

The NPPES record lists a practice address at 440 N Mountain Ave Ste 101, Upland, CA, 91786. Phone: (909) 982-8891. Providers update this record themselves, so call before visiting.

How can I verify Sean Cecil Lee, D.D.S.'s license?

NPPES lists California license number 52750, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Sean Cecil Lee, D.D.S. prescribe under Medicare Part D?

In 2024, Sean Cecil Lee, D.D.S. had 14 Medicare Part D claims for 13 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.