NPPES file of Aug 9, 2026

Katherine Mahoney, MD

Emergency Medicine Physician · St Louis Park, MN

Katherine Mahoney, MD is an emergency medicine physician with a practice address in St Louis Park, Minnesota, and NPI 1164658423, issued on Jun 1, 2009. Check the license (Minnesota 56980, 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
1164658423
Name
Katherine Mahoney
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
56980 MN
156995 NC
Self-reported in NPPES; status is on the state search
Practice location
3850 Park Nicollet Blvd, St Louis Park, MN 55416
Phone
(952) 883-1000
Enumerated
Jun 1, 2009
Record last updated
Jun 21, 2024
Medicare enrollment
Enrolled (PECOS I20130824000145); accepts Medicare assignment
Medical or professional school
Loyola University Of Chicago, Stritch School Of Medicine, 2009
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 3850 Park Nicollet Blvd

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

  1. Rachel Agneberg, DOFamily Medicine Physician1831453786
  2. Patti Albright, M.D.Internal Medicine Physician1467437368
  3. Shayla Anderson, M.D.Pediatrics Physician1679828461
  4. Elizabeth Angermeyr, M.D.Family Medicine Physician1669459293
  5. Claire Arnold, MDInternal Medicine Physician1780327825
  6. Ronneil Aviles, PA-CPhysician Assistant1194275552

Verify Katherine Mahoney 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 56980
    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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4% fewer Medicare Part D claims than the average emergency medicine physician in 2024

218 Medicare Part D claims for 80 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. Katherine Mahoney218
  2. Specialty average226

Most prescribed

  1. Levothyroxine Sodium21 claims
  2. Trazodone Hcl13 claims
  3. Cephalexin12 claims
  4. Furosemide11 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. Park Nicollet ClinicBurnsville, MN

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

Katherine Mahoney among 1,348 emergency medicine physician records in Minnesota

Katherine Mahoney, MD is one of 1,348 emergency medicine physician records with a practice address in Minnesota. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 49% of them.

  • NPI issued2009 · 49% of these records are older, 46% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2009 · median 2012 among the 818 with a school on file
  • Record last updated2024 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in Minnesota

There are 1,348 emergency medicine physician records in Minnesota.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Haleigh Bodeau, MDSt Louis Park, MN 554161598226144
  2. Graeme Browne, MDSaint Louis Park, MN 554161376515213
  3. Deborah Croker, MDSt Louis Park, MN 554161376510537
  4. Brooke Dugdale, MDSt Louis Park, MN 554161184115495
  5. Kathryn Layon, MDSt Louis Park, MN 554161124087275
  6. Yun Chau Lee, M.D.Minneapolis, MN 554161225323371
  7. Jonathan Lineer, MDSt Louis Park, MN 554161417914060
  8. James Moe, MDSt Louis Park, MN 554161952507501

Common questions

What is Katherine Mahoney, MD's NPI number?

Katherine Mahoney, MD's National Provider Identifier (NPI) is 1164658423, issued on Jun 1, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Mahoney, MD located?

The NPPES record lists a practice address at 3850 Park Nicollet Blvd, St Louis Park, MN, 55416. Phone: (952) 883-1000. Providers update this record themselves, so call before visiting.

How can I verify Katherine Mahoney, MD's license?

NPPES lists Minnesota license number 56980, 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 Katherine Mahoney, MD prescribe under Medicare Part D?

In 2024, Katherine Mahoney, MD had 218 Medicare Part D claims for 80 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.