Karlyn Armbruster, MD
Family Medicine Physician · Sleepy Eye, MN
Karlyn Armbruster, MD is a family medicine physician with a practice address in Sleepy Eye, Minnesota, and NPI 1194953034, issued on Jun 30, 2009. Check the license (Minnesota 55208, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Karlyn Armbruster
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 55208 MN
7253 KS
Self-reported in NPPES; status is on the state search - Practice location
- 400 4TH Ave NW, Sleepy Eye, MN 56085
- Phone
- (507) 794-3691
- Enumerated
- Jun 30, 2009
- Record last updated
- Oct 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20121113000429); accepts Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 2009
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,985 in Minnesota → Look up another NPI →
Also registered at 400 4TH Ave NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Susan Ahlness, APRN, BCNurse Practitioner1720057193
- Adam Armbruster, MDFamily Medicine Physician1033370077
- Harmandeep Dhaliwal, MDFamily Medicine Physician1083810907
- Venkata Murthy, MDSurgery Physician1497724892
- John Pelzel, M.D.Family Medicine Physician1124319025
Verify Karlyn Armbruster in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 55208Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31% fewer Medicare Part D claims than the average family medicine physician in 2024
2,460 Medicare Part D claims for 109 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 28 claims were for opioids.
Most prescribed
- Lisinopril178 claims
- Levothyroxine Sodium175 claims
- Atorvastatin Calcium171 claims
- Gabapentin107 claims
- Amlodipine Besylate97 claims
- Metformin Hcl Er95 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
- City OF Sleepy EyeSleepy Eye, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karlyn Armbruster among 3,985 family medicine physician records in Minnesota
Karlyn Armbruster, MD is one of 3,985 family medicine physician records with a practice address in Minnesota. 74% 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 66% of them.
- NPI issued2009 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2009 · median 2006 among the 2,483 with a school on file
- Record last updated2021 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 family medicine physician records list a practice address in Sleepy Eye
They are 4 of the 24 NPPES records with a practice address in Sleepy Eye, and 3,985 family medicine physician records in Minnesota.
All 3,985 in Minnesota → Every provider in Sleepy Eye → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Adam Armbruster, MDSleepy Eye, MN 560851033370077
- Harmandeep Dhaliwal, MDSleepy Eye, MN 560851083810907
- John Pelzel, M.D.Sleepy Eye, MN 560851124319025
- Jennifer White, MDSpringfield, MN 560871437202108
- Mark Akland, MDSaint Peter, MN 560821992780548
- Kimberly Beecher, MDSaint Peter, MN 560821881679843
- Charles Butler, D.O.Saint Peter, MN 560821417058066
- Nicholas Devetter, DOSaint Peter, MN 560821114677671
Common questions
What is Karlyn Armbruster, MD's NPI number?
Karlyn Armbruster, MD's National Provider Identifier (NPI) is 1194953034, issued on Jun 30, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Karlyn Armbruster, MD located?
The NPPES record lists a practice address at 400 4TH Ave NW, Sleepy Eye, MN, 56085. Phone: (507) 794-3691. Providers update this record themselves, so call before visiting.
How can I verify Karlyn Armbruster, MD's license?
NPPES lists Minnesota license number 55208, 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 Karlyn Armbruster, MD prescribe under Medicare Part D?
In 2024, Karlyn Armbruster, MD had 2,460 Medicare Part D claims for 109 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.