NPPES file of Aug 9, 2026

Joseph W. Leach, M.D.

Medical Oncology Physician · Maple Grove, MN

Joseph W. Leach, M.D. is a medical oncology physician with a practice address in Maple Grove, Minnesota, and NPI 1922083336, issued on Dec 8, 2005. Check the license (Minnesota 41971, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1922083336
Name
Joseph W. Leach
Credential
M.D.
Primary taxonomy
Medical Oncology Physician 207RX0202X
License number
41971 MN
Self-reported in NPPES; status is on the state search
Practice location
14500 99TH Ave N Ste 100, Maple Grove, MN 55369
Phone
(763) 898-1000
Enumerated
Dec 8, 2005
Record last updated
Feb 29, 2024
Medicare enrollment
Enrolled (PECOS I20100302000311); accepts Medicare assignment
Medical or professional school
University Of Minnesota Medical School, 1993
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 14500 99TH Ave N Ste 100

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

  1. Shawn Alderman, MDFamily Medicine Physician1760498414
  2. Heather Beckwith, M.D.Medical Oncology Physician1780879940
  3. Kimberly Jacobsen, M.D.Orthopaedic Trauma Physician1386945004
  4. Christopher Jones, MDVascular & Interventional Radiology Physician1841610326
  5. Vanessa Lange, PA-CPhysician Assistant1407307077
  6. Kristin McBeath, D.OGastroenterology Physician1073855367

Verify Joseph W. Leach 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 41971
    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

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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51% fewer Medicare Part D claims than the average medical oncology physician in 2024

346 Medicare Part D claims for 78 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims. 13 claims were for opioids.

  1. Joseph Leach346
  2. Specialty average703

Most prescribed

  1. Tagrisso47 claims
  2. Prochlorperazine Maleate30 claims
  3. Tamoxifen Citrate18 claims
  4. Anastrozole17 claims
  5. Prednisone17 claims
  6. Ondansetron Hcl16 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 81.7 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score69.9
  2. Costout of 100 · 30%59.7
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $32.50

1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Joseph Leach$33
  2. Specialty average$11,773

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. Allina Health SystemMinneapolis, MN

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

Joseph W. Leach among 159 medical oncology physician records in Minnesota

Joseph W. Leach, M.D. is one of 159 medical oncology physician records with a practice address in Minnesota. 82% 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, 87% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated1993 · median 2004 among the 119 with a school on file
  • Record last updated2024 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Oncology Physician providers in Minnesota

There are 159 medical oncology physician records in Minnesota.

The 8 medical oncology physician records with the nearest ZIP codes

  1. Heather Beckwith, M.D.Maple Grove, MN 553691780879940
  2. Robert Schneidewend, D.O.Hutchinson, MN 553501699065946
  3. Lee Newcomer, M.D.Minnetonka, MN 553451093160368
  4. Rena Shah, MDBurnsville, MN 553371750670667
  5. Dean Gesme, M.D., F.A.C.P.EMinneapolis, MN 554041760467427
  6. Danielle Tippit, MDMinneapolis, MN 554041811382625
  7. Evidio Domingo Musibay, MDMinneapolis, MN 554071831321785
  8. Lee Drinkard, MDMinneapolis, MN 554071487757084

Common questions

What is Joseph W. Leach, M.D.'s NPI number?

Joseph W. Leach, M.D.'s National Provider Identifier (NPI) is 1922083336, issued on Dec 8, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Joseph W. Leach, M.D. located?

The NPPES record lists a practice address at 14500 99TH Ave N Ste 100, Maple Grove, MN, 55369. Phone: (763) 898-1000. Providers update this record themselves, so call before visiting.

How can I verify Joseph W. Leach, M.D.'s license?

NPPES lists Minnesota license number 41971, 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 Joseph W. Leach, M.D. prescribe under Medicare Part D?

In 2024, Joseph W. Leach, M.D. had 346 Medicare Part D claims for 78 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.

What is Joseph W. Leach, M.D.'s MIPS final score?

The 2023 MIPS final score is 81.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.