Karin Irene Armstrong, M.D.
Hematology & Oncology Physician · Woodbury, MN
Karin Irene Armstrong, M.D. is a hematology & oncology physician with a practice address in Woodbury, Minnesota, and NPI 1730116088, issued on Jun 26, 2006. Check the license (Minnesota 50374, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Karin Irene Armstrong
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 50374 MN
Self-reported in NPPES; status is on the state search - Practice location
- 6025 Lake RD, Woodbury, MN 55125
- Phone
- (651) 735-7414
- Enumerated
- Jun 26, 2006
- Record last updated
- Feb 21, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (651) 735-7414
- Medicare enrollment
- Enrolled (PECOS I20080116000553); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 274 in Minnesota → Look up another NPI →
Also registered at 6025 Lake RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Christopher Duesman, PA-CPhysician Assistant1750379103
- Michael Ehlert, MDUrogynecology and Reconstructive Pelvic Surgery (Urology) Physician1649447368
- Patrick Flynn, M.D.Hematology & Oncology Physician1619938222
Verify Karin Irene Armstrong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 50374Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
862 Medicare Part D claims for 168 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 54 claims were for opioids.
Most prescribed
- Anastrozole102 claims
- Tamoxifen Citrate66 claims
- Hydroxyurea54 claims
- Acyclovir51 claims
- Calquence42 claims
- Oxycodone Hcl35 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 MIPS final score for 2023 (Medicare payment program): 90.8 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Minnesota Oncology Hematology PAWoodbury, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karin Irene Armstrong among 274 hematology & oncology physician records in Minnesota
Karin Irene Armstrong, M.D. is one of 274 hematology & 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 62% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2000 · median 2009 among the 208 with a school on file
- Record last updated2018 · 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 207RH0003X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Minnesota
There are 274 hematology & oncology physician records in Minnesota.
All 274 in Minnesota → Every provider in Woodbury → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Patrick Flynn, M.D.Woodbury, MN 551251619938222
- Girum Lemma, MDWoodbury, MN 551251093760290
- Syed Muhammed Bilal Naqvi, MDWoodbury, MN 551251598865818
- John Schwerkoske, M.D.Woodbury, MN 551251164491833
- Sunn Sunn Thaw, M.DWoodbury, MN 551251629277785
- Laxmidas Sawkar, M.D.Woodbury, MN 551291366691636
- Fatih Uckun, M.D.Roseville, MN 551131891978391
- Puneet Cheema, MDMaplewood, MN 551091841246246
Common questions
What is Karin Irene Armstrong, M.D.'s NPI number?
Karin Irene Armstrong, M.D.'s National Provider Identifier (NPI) is 1730116088, issued on Jun 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karin Irene Armstrong, M.D. located?
The NPPES record lists a practice address at 6025 Lake RD, Woodbury, MN, 55125. Phone: (651) 735-7414. Providers update this record themselves, so call before visiting.
How can I verify Karin Irene Armstrong, M.D.'s license?
NPPES lists Minnesota license number 50374, 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 Karin Irene Armstrong, M.D. prescribe under Medicare Part D?
In 2024, Karin Irene Armstrong, M.D. had 862 Medicare Part D claims for 168 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Karin Irene Armstrong, M.D.'s MIPS final score?
The 2023 MIPS final score is 90.8 of 100. 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.