NPPES file of Aug 9, 2026

Thomas Yoon, M.D.

Internal Medicine Physician · Bethlehem, PA

Thomas Yoon, M.D. is an internal medicine physician with a practice address in Bethlehem, Pennsylvania, and NPI 1588157945, issued on Jun 11, 2018. Check the license (Pennsylvania MD474789, as entered in NPPES) on the Pennsylvania Department of State (PALS); 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
1588157945
Name
Thomas Yoon
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
MD474789 PA
MT214983 PA
Self-reported in NPPES; status is on the state search
Practice location
2649 Schoenersville RD Ste 201, Bethlehem, PA 18017
Phone
(484) 884-8110
Enumerated
Jun 11, 2018
Record last updated
Sep 14, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210910000216); 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 2649 Schoenersville RD Ste 201

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

  1. Melissa AuerInternal Medicine Physician1992063556
  2. Dalia Katrib, CRNPPrimary Care Nurse Practitioner1588310171
  3. Eric RadutmanInternal Medicine Physician1912435413
  4. Robert Theiss, M.D.Internal Medicine Physician1699174680
  5. Chandini Valeeswaran, MDInternal Medicine Physician1306098017

Verify Thomas Yoon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD474789
    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 Pennsylvania 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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56% more Medicare Part D claims than the average internal medicine physician in 2024

4,959 Medicare Part D claims for 602 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 79 claims were for opioids.

  1. Thomas Yoon4,959
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium302 claims
  2. Amlodipine Besylate257 claims
  3. Pantoprazole Sodium195 claims
  4. Lisinopril191 claims
  5. Levothyroxine Sodium171 claims
  6. Losartan Potassium137 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. Lehigh Valley Physician GroupBethlehem, PA

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

Thomas Yoon among 7,300 internal medicine physician records in Pennsylvania

Thomas Yoon, M.D. is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 71% of them.

  • NPI issued2018 · 71% of these records are older, 26% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2018 · median 2008 among the 4,208 with a school on file
  • Record last updated2021 · 56% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

157 internal medicine physician records list a practice address in Bethlehem

They are 157 of the 4,797 NPPES records with a practice address in Bethlehem, and 7,300 internal medicine physician records in Pennsylvania.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Linda Augelli-Hodor, DOBethlehem, PA 180171124077656
  2. Olusegun Bankole, M.DBethlehem, PA 180171285668269
  3. Michael Ehrig, MDBethlehem, PA 180171871544262
  4. Clinton Holumzer, MDBethlehem, PA 180171124078423
  5. A Howard, DOBethlehem, PA 180171831114206
  6. Mohamed Jamaldeen, M.D.Bethlehem, PA 180171871737643
  7. Erika Lahav, MDBethlehem, PA 180171245289867
  8. Larry Levin, MDBethlehem, PA 180171730130055

Common questions

What is Thomas Yoon, M.D.'s NPI number?

Thomas Yoon, M.D.'s National Provider Identifier (NPI) is 1588157945, issued on Jun 11, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Yoon, M.D. located?

The NPPES record lists a practice address at 2649 Schoenersville RD Ste 201, Bethlehem, PA, 18017. Phone: (484) 884-8110. Providers update this record themselves, so call before visiting.

How can I verify Thomas Yoon, M.D.'s license?

NPPES lists Pennsylvania license number MD474789, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Thomas Yoon, M.D. prescribe under Medicare Part D?

In 2024, Thomas Yoon, M.D. had 4,959 Medicare Part D claims for 602 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.