Katherine Anna Ritsche, APRN, CNP
Adult Health Nurse Practitioner · Duluth, MN
Katherine Anna Ritsche, APRN, CNP is an adult health nurse practitioner with a practice address in Duluth, Minnesota, and NPI 1881081248, issued on Apr 22, 2015. Check the license (Minnesota CNP6959, as entered in NPPES) with the Minnesota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Anna Ritsche
- Credential
- APRN, CNP
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License numbers
- CNP6959 MN
206564 NC
Self-reported in NPPES; status is on the state search - Practice location
- 400 E 3RD St, Duluth, MN 55805
- Phone
- (218) 786-4000
- Enumerated
- Apr 22, 2015
- Record last updated
- Sep 27, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20191104000111); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest adult health nurse practitioner records → All 601 in Minnesota → Look up another NPI →
Also registered at 400 E 3RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Peter Aas, MDHospitalist Physician1063455848
- Amina Adil, MDCardiovascular Disease Physician1336482314
- Rahul Aggarwal, M.D.Pediatric Critical Care Medicine Physician1336198332
- Olubisi Akinseloyin, MDHospitalist Physician1619309010
- Glenn Albin, M.DCardiovascular Disease Physician1902851116
- David AlexanderDiagnostic Radiology Physician1932135936
Verify Katherine Anna Ritsche in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Minnesota board licenses this profession
Search for license CNP6959Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024
954 Medicare Part D claims for 301 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. 42 claims were for opioids.
Most prescribed
- Eliquis170 claims
- Metoprolol Succinate129 claims
- Amiodarone Hcl92 claims
- Metoprolol Tartrate92 claims
- Flecainide Acetate82 claims
- Diltiazem 24hr Er (Cd)56 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
- St Marys Medical CenterDuluth, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Anna Ritsche among 601 adult health nurse practitioner records in Minnesota
Katherine Anna Ritsche, APRN, CNP is one of 601 adult health nurse practitioner records with a practice address in Minnesota. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 68% of them.
- NPI issued2015 · 68% of these records are older, 25% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2014 · median 2014 among the 310 with a school on file
- Record last updated2019 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Health Nurse Practitioner providers in Minnesota
There are 601 adult health nurse practitioner records in Minnesota.
All 601 in Minnesota → Every provider in Duluth → Adult Health Nurse Practitioner nationwide →
The 8 adult health nurse practitioner records with the nearest ZIP codes
- Janet Bennett, APRN, CNPDuluth, MN 558051134122799
- Roberta CookDuluth, MN 558051871533919
- Sherry Fuller, APRN, CNPDuluth, MN 558051740452044
- Margaret Hoberg, NPDuluth, MN 558051982854782
- Sandra Jungers, RN, CNPDuluth, MN 558051720260391
- Robin KetchenDuluth, MN 558051134144652
- Karen Koshere, RN, CNPDuluth, MN 558051720006893
- Jill LuccaDuluth, MN 558051578590840
Common questions
What is Katherine Anna Ritsche, APRN, CNP's NPI number?
Katherine Anna Ritsche, APRN, CNP's National Provider Identifier (NPI) is 1881081248, issued on Apr 22, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Anna Ritsche, APRN, CNP located?
The NPPES record lists a practice address at 400 E 3RD St, Duluth, MN, 55805. Phone: (218) 786-4000. Providers update this record themselves, so call before visiting.
How can I verify Katherine Anna Ritsche, APRN, CNP's license?
NPPES lists Minnesota license number CNP6959, as entered by the provider. Search the Minnesota board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine Anna Ritsche, APRN, CNP prescribe under Medicare Part D?
In 2024, Katherine Anna Ritsche, APRN, CNP had 954 Medicare Part D claims for 301 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.