James Bum-Suk Han, D.D.S, M.D.
Dentist · Pleasant Hill, CA
James Bum-Suk Han, D.D.S, M.D. is a dentist with a practice address in Pleasant Hill, California, and NPI 1013221324, issued on Jul 28, 2010. Check the license (California D100039, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- James Bum-Suk Han
- Credential
- D.D.S, M.D.
- Primary taxonomy
- Dentist 122300000X
- License number
- D100039 CA
Self-reported in NPPES; status is on the state search - Practice location
- 401 Gregory Lane, Pleasant Hill, CA 94523
- Phone
- (925) 689-8500
- Enumerated
- Jul 28, 2010
- Record last updated
- Jul 21, 2022
- Medicaid ID
- ENROLLED MN
- Entity
- Type 1 · individual
8 nearest dentist records → All 14,729 in California → Look up another NPI →
Also registered at 401 Gregory Lane
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mariela Gamboa, D.D.S.General Practice Dentistry1427076041
- Sebastian Lavino, DDSDentist1467541540
- Ellen Newman, PHD MFTMarriage & Family Therapist1265521439
Verify James Bum-Suk Han in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license D100039Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% more Medicare Part D claims than the average dentist in 2024
141 Medicare Part D claims for 80 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 53 claims were for opioids.
Most prescribed
- Amoxicillin61 claims
- Hydrocodone-Acetaminophen48 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: $37.34
1 payment: compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program; the largest payer was Septodont Inc. The 31,974 providers of this specialty with any payment received $540.36 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.
James Bum-Suk Han among 14,729 dentist records in California
James Bum-Suk Han, D.D.S, M.D. is one of 14,729 dentist records with a practice address in California. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 51% of them.
- NPI issued2010 · 51% of these records are older, 46% newer
- In a Medicare fileYes · 56% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2022 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
19 dentist records list a practice address in Pleasant Hill
They are 19 of the 843 NPPES records with a practice address in Pleasant Hill, and 14,729 dentist records in California.
All 14,729 in California → Every provider in Pleasant Hill → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Dia Basha, D.D.S.Pleasant Hill, CA 945231750404265
- Randy Bautista, D.D.S.Pleasant Hill, CA 945231548488695
- Monika Elek, D.D.S.Pleasant Hill, CA 945231851439772
- Ronald Grafton, D.D.S.Pleasant Hill, CA 945231255353116
- Mariam Hashoush, DDSPleasant Hill, CA 945231114130358
- Bessma Hayder, D.D.S.Pleasant Hill, CA 945231700191376
- Jean Kim, D.D.S.Pleasant Hill, CA 945231316145659
- Sebastian Lavino, DDSPleasant Hill, CA 945231467541540
Common questions
What is James Bum-Suk Han, D.D.S, M.D.'s NPI number?
James Bum-Suk Han, D.D.S, M.D.'s National Provider Identifier (NPI) is 1013221324, issued on Jul 28, 2010. An NPI identifies a provider in billing; it is not a license.
Where is James Bum-Suk Han, D.D.S, M.D. located?
The NPPES record lists a practice address at 401 Gregory Lane, Pleasant Hill, CA, 94523. Phone: (925) 689-8500. Providers update this record themselves, so call before visiting.
How can I verify James Bum-Suk Han, D.D.S, M.D.'s license?
NPPES lists California license number D100039, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does James Bum-Suk Han, D.D.S, M.D. prescribe under Medicare Part D?
In 2024, James Bum-Suk Han, D.D.S, M.D. had 141 Medicare Part D claims for 80 beneficiaries; the average among dentist prescribers was 86. 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.