NPPES file of Aug 9, 2026

Hyejin Kwak, DMD

Prosthodontics · Brookline, MA

Hyejin Kwak, DMD is a prosthodontics with a practice address in Brookline, Massachusetts, and NPI 1578723847, issued on Jun 11, 2008. Check the license (Massachusetts 21335, as entered in NPPES) with the Massachusetts 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
1578723847
Name
Hyejin Kwak
Credential
DMD
Primary taxonomy
Prosthodontics 1223P0700X
License number
21335 MA
Self-reported in NPPES; status is on the state search
Practice location
1203 Beacon St, Brookline, MA 02446
Phone
(617) 232-8113
Enumerated
Jun 11, 2008
Record last updated
Nov 1, 2013 (not updated in 13 years: call before relying on the address or phone)
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.
Download card Updates feed

Also registered at 1203 Beacon St

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

  1. Khaled El Rafie, DMDProsthodontics1649601311
  2. Aaron Styles, L.M.T.Mechanotherapist1114388584
  3. Kenneth Thomases, DMDGeneral Practice Dentistry1407968613

Verify Hyejin Kwak 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 21335
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

48% fewer Medicare Part D claims than the average prosthodontics in 2024

47 Medicare Part D claims for 31 beneficiaries, against an average of 90 among the 1,779 providers of this specialty who prescribed in Part D.

  1. Hyejin Kwak47
  2. Specialty average90

Most prescribed

  1. Azithromycin15 claims
  2. Amoxicillin12 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: $261.06

3 payments; by number, the most common kind was food and beverage; the largest payer was Align Technology, Inc. The 1,408 providers of this specialty with any payment received $3,465.28 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Hyejin Kwak$261.06
  2. Specialty average$3,465.28

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

Hyejin Kwak among 295 prosthodontics records in Massachusetts

Hyejin Kwak, DMD is one of 295 prosthodontics records with a practice address in Massachusetts. 53% 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 46% of them.

  • NPI issued2008 · 46% of these records are older, 44% newer
  • In a Medicare fileYes · 53% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2013 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0700X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

19 prosthodontics records list a practice address in Brookline

They are 19 of the 2,357 NPPES records with a practice address in Brookline, and 295 prosthodontics records in Massachusetts.

The 8 prosthodontics records with the nearest ZIP codes

  1. Barry Bessler, DMDBrookline, MA 024461225160112
  2. Ryan Blissett, D.M.D.Brookline, MA 024461972690691
  3. Marc Ehrlich, DMDBrookline, MA 024461205020260
  4. Khaled El Rafie, DMDBrookline, MA 024461649601311
  5. Igor LozadaBrookline, MA 024461134348006
  6. George Maryniuk, DDSBrookline, MA 024461295936086
  7. Billy Papadopoulos, DMDBrookline, MA 024461275730848
  8. Lawrence Phan, DMDBrookline, MA 024461083620819

Common questions

What is Hyejin Kwak, DMD's NPI number?

Hyejin Kwak, DMD's National Provider Identifier (NPI) is 1578723847, issued on Jun 11, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Hyejin Kwak, DMD located?

The NPPES record lists a practice address at 1203 Beacon St, Brookline, MA, 02446. Phone: (617) 232-8113. Providers update this record themselves, so call before visiting.

How can I verify Hyejin Kwak, DMD's license?

NPPES lists Massachusetts license number 21335, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Hyejin Kwak, DMD prescribe under Medicare Part D?

In 2024, Hyejin Kwak, DMD had 47 Medicare Part D claims for 31 beneficiaries; the average among prosthodontics prescribers was 90. 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.