NPPES file of Aug 9, 2026

Karen Rose Armbrust, M.D.

Ophthalmology Physician · Minneapolis, MN

Karen Rose Armbrust, M.D. is an ophthalmology physician with a practice address in Minneapolis, Minnesota, and NPI 1124310735, issued on May 15, 2011. Check the license (Minnesota 59313, 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
1124310735
Name
Karen Rose Armbrust
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
59313 MN
Self-reported in NPPES; status is on the state search
Practice location
1 Veterans Dr # 2E, Minneapolis, MN 55417
Phone
(612) 725-2000
Enumerated
May 15, 2011
Record last updated
Oct 16, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20160811000429); accepts Medicare assignment
Medical or professional school
University Of Minnesota Medical School, 2011
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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Verify Karen Rose Armbrust 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 59313
    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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89% fewer Medicare Part D claims than the average ophthalmology physician in 2024

160 Medicare Part D claims for 21 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.

  1. Karen Armbrust160
  2. Specialty average1,518

Most prescribed

  1. Prednisolone Acetate27 claims
  2. Prednisone18 claims
  3. Difluprednate15 claims
  4. Brimonidine Tartrate11 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).

Bills Medicare through one group practice

  1. Fairview Express CareMinneapolis, MN

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

Karen Rose Armbrust among 434 ophthalmology physician records in Minnesota

Karen Rose Armbrust, M.D. is one of 434 ophthalmology 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 2011, is newer than 69% of them.

  • NPI issued2011 · 69% of these records are older, 29% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2011 · median 2006 among the 282 with a school on file
  • Record last updated2019 · 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 207W00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in Minnesota

There are 434 ophthalmology physician records in Minnesota.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Akshar Abbott, M.D.Minneapolis, MN 554171730459231
  2. Peter Arny, M.D.Minneapolis, MN 554171104923143
  3. Siya Huo, M.D.Minneapolis, MN 554171326480385
  4. Claire Mueller, MDMinneapolis, MN 554171881154342
  5. Morgan Pansegrau, M.D.Minneapolis, MN 554171013176254
  6. John RiceMinneapolis, MN 554171336244771
  7. Meghan Brown, MDSaint Louis Park, MN 554161407434681
  8. J Timothy DiegelSt Louis Park, MN 554161619951308

Common questions

What is Karen Rose Armbrust, M.D.'s NPI number?

Karen Rose Armbrust, M.D.'s National Provider Identifier (NPI) is 1124310735, issued on May 15, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Karen Rose Armbrust, M.D. located?

The NPPES record lists a practice address at 1 Veterans Dr # 2E, Minneapolis, MN, 55417. Phone: (612) 725-2000. Providers update this record themselves, so call before visiting.

How can I verify Karen Rose Armbrust, M.D.'s license?

NPPES lists Minnesota license number 59313, 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 Karen Rose Armbrust, M.D. prescribe under Medicare Part D?

In 2024, Karen Rose Armbrust, M.D. had 160 Medicare Part D claims for 21 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Karen Rose Armbrust, 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.