NPPES file of Aug 9, 2026

Seung Whan Han

Dentist · Springfield, MA

Seung Whan Han is a dentist with a practice address in Springfield, Massachusetts, and NPI 1104597251, issued on Sep 27, 2021. Check the license (Massachusetts DN1859490, as entered in NPPES) with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1104597251
Name
Seung Whan Han
Primary taxonomy
Dentist 122300000X
License number
DN1859490 MA
Self-reported in NPPES; status is on the state search
Practice location
555 State St, Springfield, MA 01109
Phone
(516) 697-6108
Enumerated
Sep 27, 2021
Record last updated
Jul 22, 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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8 nearest dentist records → All 2,934 in Massachusetts → Look up another NPI →

Also registered at 555 State St

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

  1. Ruchi AhujaDentist1194200451
  2. Soolmaz AjdariDentist1700121431
  3. Lakshmi Bethi, DMDDentist1053669473
  4. Chaiyoon Cho, D.D.S.Dentist1477993145
  5. Chang Youn Han, D.D.S.General Practice Dentistry1518269398
  6. Abida Hasnain, D.D.SGeneral Practice Dentistry1043597438

Verify Seung Whan Han in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license DN1859490    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 Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Seung Whan Han among 2,934 dentist records in Massachusetts

Seung Whan Han is one of 2,934 dentist records with a practice address in Massachusetts. 58% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2021, is newer than 71% of them.

  • NPI issued2021 · 71% of these records are older, 24% newer
  • In a Medicare fileNo · 58% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2022 · 63% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dentist providers in Massachusetts

There are 2,934 dentist records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,934 in Massachusetts → Every provider in Springfield → Dentist nationwide →

The 8 dentist records with the nearest ZIP codes

  1. Ruchi AhujaSpringfield, MA 011091194200451
  2. Soolmaz AjdariSpringfield, MA 011091700121431
  3. Lakshmi Bethi, DMDSpringfield, MA 011091053669473
  4. Chaiyoon Cho, D.D.S.Springfield, MA 011091477993145
  5. Roy Kim, D.M.DSpringfield, MA 011091306191051
  6. Ji Won KimSpringfield, MA 011091164004206
  7. Jessie Lee, DDSSpringfield, MA 011091821727298
  8. Krishnaprasanth MudusuSpringfield, MA 011091285960351

Common questions

What is Seung Whan Han's NPI number?

Seung Whan Han's National Provider Identifier (NPI) is 1104597251, issued on Sep 27, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Seung Whan Han located?

The NPPES record lists a practice address at 555 State St, Springfield, MA, 01109. Phone: (516) 697-6108. Providers update this record themselves, so call before visiting.

How can I verify Seung Whan Han's license?

NPPES lists Massachusetts license number DN1859490, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity 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. 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.