NPPES file of Aug 9, 2026

Mark Linzer, MD

Internal Medicine Physician · Minneapolis, MN

Mark Linzer, MD is an internal medicine physician with a practice address in Minneapolis, Minnesota, and NPI 1245206267, issued on Feb 28, 2006. Check the license (Minnesota 52486, 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
1245206267
Name
Mark Linzer
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
52486 MN
Self-reported in NPPES; status is on the state search
Practice location
715 S 8TH St, Minneapolis, MN 55404
Phone
(612) 873-6963
Enumerated
Feb 28, 2006
Record last updated
Oct 18, 2024
Fax
(612) 873-1928
Medicare enrollment
Enrolled (PECOS I20091110000377); accepts Medicare assignment
Medical or professional school
Johns Hopkins University School Of Medicine, 1977
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 715 S 8TH St

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

  1. Anne Abel, MDOphthalmology Physician1659508331
  2. Stephanie Adamek, PA-CPhysician Assistant1104247030
  3. Kristin Adams, ODOptometrist1447779442
  4. Elizabeth Alabi, MDObstetrics & Gynecology Physician1225395114
  5. Timothy Allen, MDDermatology Physician1093203184
  6. Anna Altman, CNPAcute Care Nurse Practitioner1518530880

Verify Mark Linzer 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 52486
    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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98% fewer Medicare Part D claims than the average internal medicine physician in 2024

53 Medicare Part D claims for 17 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.

  1. Mark Linzer53
  2. Specialty average3,176

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): 91.4 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 score78.8
  2. Costout of 100 · 30%62.8
  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).

Bills Medicare through one group practice

  1. Hennepin Healthcare System IncMinneapolis, MN

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

Mark Linzer among 2,632 internal medicine physician records in Minnesota

Mark Linzer, MD 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 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 58% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated1977 · median 2008 among the 1,700 with a school on file
  • Record last updated2024 · 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).

653 internal medicine physician records list a practice address in Minneapolis

They are 653 of the 22,918 NPPES records with a practice address in Minneapolis, and 2,632 internal medicine physician records in Minnesota.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Frederick Arnason, M.D.Minneapolis, MN 554041477530004
  2. Michael Aylward, M.D.Minneapolis, MN 554041053366575
  3. Nina Bacaner, MDMinneapolis, MN 554041578576021
  4. Alan Divine, M.D.Minneapolis, MN 554041104825280
  5. Alison Eckhoff, M.D.Minneapolis, MN 554041326023771
  6. Sara Lindquist, M.D.Minneapolis, MN 554041083699813
  7. Paul Pentel, MDMinneapolis, MN 554041154368983
  8. Dale PetersenMinneapolis, MN 554041841274255

Common questions

What is Mark Linzer, MD's NPI number?

Mark Linzer, MD's National Provider Identifier (NPI) is 1245206267, issued on Feb 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Linzer, MD located?

The NPPES record lists a practice address at 715 S 8TH St, Minneapolis, MN, 55404. Phone: (612) 873-6963. Providers update this record themselves, so call before visiting.

How can I verify Mark Linzer, MD's license?

NPPES lists Minnesota license number 52486, 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 Mark Linzer, MD prescribe under Medicare Part D?

In 2024, Mark Linzer, MD had 53 Medicare Part D claims for 17 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Mark Linzer, MD's MIPS final score?

The 2023 MIPS final score is 91.4 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.