NPPES file of Aug 9, 2026

Seong Yoon Kim, MD

Internal Medicine Physician · Worcester, MA

Seong Yoon Kim, MD is an internal medicine physician with a practice address in Worcester, Massachusetts, and NPI 1558920652, issued on Jun 12, 2019. Check the license (Massachusetts 292895, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; 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
1558920652
Name
Seong Yoon Kim
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
292895 MA
Self-reported in NPPES; status is on the state search
Practice location
1 W Boylston St, Worcester, MA 01605
Phone
(508) 854-2636
Enumerated
Jun 12, 2019
Record last updated
Aug 30, 2022
Fax
(508) 854-1667
Medicare enrollment
Enrolled (PECOS I20220920000898); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1 W Boylston St

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

  1. Sheryn Angelis, M.D.Internal Medicine Physician1841238136
  2. Abraham Ballah, NPNurse Practitioner1578716338
  3. Edward Driscoll, M.D.Internal Medicine Physician1871569756
  4. Michael Galica, M.D.Internal Medicine Physician1972586733
  5. Paul Grenier, D.C.Chiropractor1962503938
  6. Thomas Hedstrom, D.D.S.General Practice Dentistry1609082346

Verify Seong Yoon Kim in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 292895
    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
Open 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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63% more Medicare Part D claims than the average internal medicine physician in 2024

5,171 Medicare Part D claims for 555 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 23 claims were for opioids.

  1. Seong Yoon Kim5,171
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium437 claims
  2. Losartan Potassium268 claims
  3. Amlodipine Besylate218 claims
  4. Lisinopril204 claims
  5. Omeprazole189 claims
  6. Metformin Hcl180 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.

Bills Medicare through one group practice

  1. Umass Memorial Medical Group IncWorcester, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Seong Yoon Kim among 6,825 internal medicine physician records in Massachusetts

Seong Yoon Kim, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 84% of them.

  • NPI issued2019 · 84% of these records are older, 13% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2004 · median 2004 among the 4,103 with a school on file
  • Record last updated2022 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

448 internal medicine physician records list a practice address in Worcester

They are 448 of the 13,166 NPPES records with a practice address in Worcester, and 6,825 internal medicine physician records in Massachusetts.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Maria Casal, M.D.Worcester, MA 016051609859503
  2. Paula Cullinane, M.D.Worcester, MA 016051952384950
  3. Michael Galica, M.D.Worcester, MA 016051972586733
  4. Maria Garcia, M.D.Worcester, MA 016051396726220
  5. Mary Hawthorne, M.D.Worcester, MA 016051013990787
  6. Gayatridevi Ika, M.D.Worcester, MA 016051124001102
  7. Jayanthi Kumar, M.D.Worcester, MA 016051528041423
  8. Christine Macginnis, D.O.Worcester, MA 016051952382772

Common questions

What is Seong Yoon Kim, MD's NPI number?

Seong Yoon Kim, MD's National Provider Identifier (NPI) is 1558920652, issued on Jun 12, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Seong Yoon Kim, MD located?

The NPPES record lists a practice address at 1 W Boylston St, Worcester, MA, 01605. Phone: (508) 854-2636. Providers update this record themselves, so call before visiting.

How can I verify Seong Yoon Kim, MD's license?

NPPES lists Massachusetts license number 292895, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Seong Yoon Kim, MD prescribe under Medicare Part D?

In 2024, Seong Yoon Kim, MD had 5,171 Medicare Part D claims for 555 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.