NPPES file of Aug 9, 2026

Samuel Seunghoon Yoon, M.D.

Endocrinology, Diabetes & Metabolism Physician · Hartland, WI

Samuel Seunghoon Yoon, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Hartland, Wisconsin, and NPI 1043692627, issued on Jun 19, 2015. Check the license (Wisconsin 73241, as entered in NPPES) on the Wisconsin Medical Examining Board; 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
1043692627
Name
Samuel Seunghoon Yoon
Credential
M.D.
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
73241 WI
Self-reported in NPPES; status is on the state search
Practice location
600 Walnut Ridge Dr, Hartland, WI 53029
Phone
(262) 369-7040
Enumerated
Jun 19, 2015
Record last updated
Nov 24, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(262) 369-7059
Medicaid ID
100101732 WI
Medicare enrollment
Enrolled (PECOS I20200730000102); accepts Medicare assignment
Medical or professional school
Albany Medical College Of Union University, 2015
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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8 nearest endocrinology, diabetes & metabolism physician records → All 187 in Wisconsin → Look up another NPI →

Also registered at 600 Walnut Ridge Dr

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

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  3. Thomas Derrig, MDSurgery Physician1588779771
  4. David Faust, DOFamily Medicine Physician1295840320
  5. Mary Geralts, MDInternal Medicine Physician1386759397
  6. Veena Gonuguntla, MDPediatrics Physician1598959967

Verify Samuel Seunghoon Yoon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 73241    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 Wisconsin license search

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11% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024

2,919 Medicare Part D claims for 381 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.

  1. Samuel Yoon2,919
  2. Specialty average2,630

Most prescribed

  1. Metformin Hcl Er321 claims
  2. Levothyroxine Sodium302 claims
  3. Ozempic245 claims
  4. Lantus Solostar151 claims
  5. Alendronate Sodium150 claims
  6. Jardiance94 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. Aurora Medical Group, Inc.Summit, WI

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

Samuel Seunghoon Yoon among 187 endocrinology, diabetes & metabolism physician records in Wisconsin

Samuel Seunghoon Yoon, M.D. is one of 187 endocrinology, diabetes & metabolism physician records with a practice address in Wisconsin. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 76% of them.

  • NPI issued2015 · 76% of these records are older, 20% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated2015 · median 2003 among the 134 with a school on file
  • Record last updated2021 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in Wisconsin

There are 187 endocrinology, diabetes & metabolism physician records in Wisconsin.

All 187 in Wisconsin → Every provider in Hartland → Endocrinology, Diabetes & Metabolism Physician nationwide →

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Justin Yoon, M.D.Grafton, WI 530241669815247
  2. Nicolas Mungo, MDBrookfield, WI 530451245627991
  3. James Findling, MDMenomonee Falls, WI 530511295803401
  4. Bradley Javorsky, M.D.Menomonee Falls, WI 530511568402139
  5. Steven Magill, MDMenomonee Falls, WI 530511508973066
  6. Tiffany Mork, MDMenomonee Falls, WI 530511376650671
  7. Joseph Shaker, MDMenomonee Falls, WI 530511164561247
  8. Bhavin Shastri, MDMenomonee Falls, WI 530511689875734

Common questions

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

Samuel Seunghoon Yoon, M.D.'s National Provider Identifier (NPI) is 1043692627, issued on Jun 19, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Samuel Seunghoon Yoon, M.D. located?

The NPPES record lists a practice address at 600 Walnut Ridge Dr, Hartland, WI, 53029. Phone: (262) 369-7040. Providers update this record themselves, so call before visiting.

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

NPPES lists Wisconsin license number 73241, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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

In 2024, Samuel Seunghoon Yoon, M.D. had 2,919 Medicare Part D claims for 381 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.

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.