NPPES file of Aug 9, 2026

Yonghyun Lee, M.D.

Internal Medicine Physician · Framingham, MA

Yonghyun Lee, M.D. is an internal medicine physician with a practice address in Framingham, Massachusetts, and NPI 1104278027, issued on Jul 2, 2016. Check the license (Massachusetts 280251, 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
1104278027
Name
Yonghyun Lee
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
280251 MA
Self-reported in NPPES; status is on the state search
Practice location
571 Union Ave Ste 101, Framingham, MA 01702
Phone
(508) 820-8332
Enumerated
Jul 2, 2016
Record last updated
Mar 8, 2024
Fax
(508) 370-0229
Medicare enrollment
Enrolled (PECOS I20190920001291); 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 571 Union Ave Ste 101

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

  1. Stephen Buchanan, MDFamily Medicine Physician1104815398
  2. Patricio Cabral, MDInternal Medicine Physician1639465305
  3. Hannah Mathew, MDEndocrinology, Diabetes & Metabolism Physician1225371230
  4. Michelle Swire, M.D.Diagnostic Radiology Physician1417915471
  5. Jenna Yaggy, NPNurse Practitioner1407681075

Verify Yonghyun Lee 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 280251
    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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16% more Medicare Part D claims than the average internal medicine physician in 2024

3,686 Medicare Part D claims for 659 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. 44 claims were for opioids.

  1. Yonghyun Lee3,686
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium392 claims
  2. Lisinopril231 claims
  3. Amlodipine Besylate189 claims
  4. Omeprazole181 claims
  5. Simvastatin127 claims
  6. Metoprolol Succinate126 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: $24.73

1 payment: food and beverage; the largest payer was Abbott Laboratories. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Yonghyun Lee$24.73
  2. Specialty average$1,303.06

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

Bills Medicare through one group practice

  1. Charles River Medical Associates, PCFramingham, MA

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

Yonghyun Lee among 6,825 internal medicine physician records in Massachusetts

Yonghyun Lee, M.D. 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 2016, is newer than 77% of them.

  • NPI issued2016 · 77% of these records are older, 21% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2012 · median 2004 among the 4,103 with a school on file
  • Record last updated2024 · 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).

93 internal medicine physician records list a practice address in Framingham

They are 93 of the 3,069 NPPES records with a practice address in Framingham, and 6,825 internal medicine physician records in Massachusetts.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Michael Bean, MDFramingham, MA 017021447266408
  2. Joseph Harrington, MDFramingham, MA 017021346204419
  3. Stephen Hoffmann, MDFramingham, MA 017021295736494
  4. Li-Ming Hu, MDFramingham, MA 017021811952930
  5. Shahnaz Montague, M.D.Framingham, MA 017021457308249
  6. Timothy Odonnell, MDFramingham, MA 017021346206091
  7. Irma Rasmussen, MDFramingham, MA 017021144287236
  8. Eduardo Ribeiro, MDFramingham, MA 017021649256751

Common questions

What is Yonghyun Lee, M.D.'s NPI number?

Yonghyun Lee, M.D.'s National Provider Identifier (NPI) is 1104278027, issued on Jul 2, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Yonghyun Lee, M.D. located?

The NPPES record lists a practice address at 571 Union Ave Ste 101, Framingham, MA, 01702. Phone: (508) 820-8332. Providers update this record themselves, so call before visiting.

How can I verify Yonghyun Lee, M.D.'s license?

NPPES lists Massachusetts license number 280251, 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 Yonghyun Lee, M.D. prescribe under Medicare Part D?

In 2024, Yonghyun Lee, M.D. had 3,686 Medicare Part D claims for 659 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.