NPPES file of Aug 9, 2026

John Richard Lake, MD

Gastroenterology Physician · Minneapolis, MN

John Richard Lake, MD is a gastroenterology physician with a practice address in Minneapolis, Minnesota, and NPI 1740360619, issued on Oct 16, 2006. Check the license (Minnesota 40739, 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
1740360619
Name
John Richard Lake
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
40739 MN
Self-reported in NPPES; status is on the state search
Practice location
University OF Minnesota Physicians, Minneapolis, MN 55454
Phone
(612) 626-6100
Enumerated
Oct 16, 2006
Record last updated
Oct 26, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicaid IDs
0506741 IA
480019200 MN
32420100 WI
Medicare enrollment
Enrolled (PECOS I20040910000652); accepts Medicare assignment
Medical or professional school
University Of Minnesota Medical School, 1979
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 University OF Minnesota Physicians

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

  1. Deanna Bass, M.D.Psychiatry Physician1275577371
  2. Michael Bloomquist, PHD, LPClinical Psychologist1265478473
  3. Edward Cheng, M.D.Orthopaedic Surgery Physician1447287610
  4. Rosalie Drechnik, CPNPObstetrics & Gynecology Nurse Practitioner1578599460
  5. Seyyed Fatemi, M.D., PHDPsychiatry Physician1477582765
  6. Mary Freitag, PSYD, LPPsychologist1265463137

Verify John Richard Lake 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 40739
    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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2.8 times the Medicare Part D claims of the average gastroenterology physician in 2024

2,281 Medicare Part D claims for 296 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. John Lake2,281
  2. Specialty average811

Most prescribed

  1. Ursodiol337 claims
  2. Tacrolimus321 claims
  3. Prednisone195 claims
  4. Mycophenolate Mofetil193 claims
  5. Cyclosporine Modified94 claims
  6. Tenofovir Disoproxil Fumarate86 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 2 group practices

  1. Fairview Express CareMinneapolis, MN
  2. The Duluth Clinic LtdDuluth, MN

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

John Richard Lake among 457 gastroenterology physician records in Minnesota

John Richard Lake, MD is one of 457 gastroenterology physician records with a practice address in Minnesota. 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 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 55% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated1979 · median 2006 among the 334 with a school on file
  • Record last updated2012 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Minnesota

There are 457 gastroenterology physician records in Minnesota.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Michael LongMinneapolis, MN 554541821071317
  2. Stuart Amateau, MD, PHDMinneapolis, MN 554551083769855
  3. Nabeel AzeemMinneapolis, MN 554551225261480
  4. Petrus De Groen, M.D.Minneapolis, MN 554551811977028
  5. Mohamed Hassan, M.D.Minneapolis, MN 554551992739494
  6. Justin Howard, M.D.Minneapolis, MN 554551134360704
  7. Timothy Kinney, MDMinneapolis, MN 554551407895139
  8. Thomas Leventhal, M.D.Minneapolis, MN 554551275720898

Common questions

What is John Richard Lake, MD's NPI number?

John Richard Lake, MD's National Provider Identifier (NPI) is 1740360619, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Richard Lake, MD located?

The NPPES record lists a practice address at University OF Minnesota Physicians, Minneapolis, MN, 55454. Phone: (612) 626-6100. Providers update this record themselves, so call before visiting.

How can I verify John Richard Lake, MD's license?

NPPES lists Minnesota license number 40739, 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 John Richard Lake, MD prescribe under Medicare Part D?

In 2024, John Richard Lake, MD had 2,281 Medicare Part D claims for 296 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.