NPPES file of Aug 9, 2026

Stephen K. Leenay, M.D.

Internal Medicine Physician · Chanhassen, MN

Stephen K. Leenay, M.D. is an internal medicine physician with a practice address in Chanhassen, Minnesota, and NPI 1770568594, issued on Dec 14, 2005. Check the license (Minnesota 32181, as entered in NPPES) on the Minnesota Board of Medical Practice; 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
1770568594
Name
Stephen K. Leenay
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
32181 MN
Self-reported in NPPES; status is on the state search
Practice location
300 Lake Dr E, Chanhassen, MN 55317
Phone
(952) 993-4300
Enumerated
Dec 14, 2005
Record last updated
Mar 2, 2012 (not updated in 14 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.
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Also registered at 300 Lake Dr E

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

  1. Kelly Albers, PT, ATRAthletic Trainer1346321494
  2. Natalie Bauman, FNP-CFamily Nurse Practitioner1902589419
  3. Adam Blaschko, DPTPhysical Therapist1013804988
  4. Katherine Bohn, DOFamily Medicine Physician1700576451
  5. Kristine Braun, P.T.Physical Therapist1538248919
  6. Erin Butterfield, M.D.Pediatrics Physician1164651865

Verify Stephen K. Leenay in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMinnesota Board of Medical Practice
    Search for license 32181
    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 Minnesota license search

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47% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,681 Medicare Part D claims for 145 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 23 claims were for opioids.

  1. Stephen Leenay1,681
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium148 claims
  2. Amlodipine Besylate85 claims
  3. Losartan Potassium64 claims
  4. Simvastatin52 claims
  5. Omeprazole49 claims
  6. Metoprolol Succinate48 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.

Stephen K. Leenay among 2,632 internal medicine physician records in Minnesota

Stephen K. Leenay, M.D. is one of 2,632 internal medicine physician records with a practice address in Minnesota. 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 92% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 65% of these records are
  • Record last updated2012 · 57% 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 Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

8 internal medicine physician records list a practice address in Chanhassen

They are 8 of the 267 NPPES records with a practice address in Chanhassen, and 2,632 internal medicine physician records in Minnesota.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Taryn Boik, M.D.Chanhassen, MN 553171417142506
  2. Haizal Hamza, MDChanhassen, MN 553171831155928
  3. Rachael Harter, DOChanhassen, MN 553171033370622
  4. Jennifer Kumasaki, MDChanhassen, MN 553171407114390
  5. Vikesh Patel, M.D.Chanhassen, MN 553171679703284
  6. Peter Schultz, MDChanhassen, MN 553171851409098
  7. Jeffrey Sczublewski, MDChanhassen, MN 553171891772497
  8. Glen Carlson, MDChamplin, MN 553161245217231

Common questions

What is Stephen K. Leenay, M.D.'s NPI number?

Stephen K. Leenay, M.D.'s National Provider Identifier (NPI) is 1770568594, issued on Dec 14, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Stephen K. Leenay, M.D. located?

The NPPES record lists a practice address at 300 Lake Dr E, Chanhassen, MN, 55317. Phone: (952) 993-4300. Providers update this record themselves, so call before visiting.

How can I verify Stephen K. Leenay, M.D.'s license?

NPPES lists Minnesota license number 32181, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Stephen K. Leenay, M.D. prescribe under Medicare Part D?

In 2024, Stephen K. Leenay, M.D. had 1,681 Medicare Part D claims for 145 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.