NPPES file of Aug 9, 2026

Casandra Jean Offersen, CNP

Neonatal Nurse Practitioner · Duluth, MN

Casandra Jean Offersen, CNP is a neonatal nurse practitioner with a practice address in Duluth, Minnesota, and NPI 1841509650, issued on Sep 28, 2010. Check the license (Minnesota R143340-1, as entered in NPPES) with the Minnesota board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1841509650
Name
Casandra Jean Offersen
Credential
CNP
Primary taxonomy
Neonatal Nurse Practitioner 363LN0000X
License number
R143340-1 MN
Self-reported in NPPES; status is on the state search
Practice location
400 E 3RD St, Duluth, MN 55805
Phone
(218) 786-4601
Enumerated
Sep 28, 2010
Record last updated
Sep 28, 2010 (not updated in 16 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest neonatal nurse practitioner records → All 128 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.

  1. Peter Aas, MDHospitalist Physician1063455848
  2. Amina Adil, MDCardiovascular Disease Physician1336482314
  3. Rahul Aggarwal, M.D.Pediatric Critical Care Medicine Physician1336198332
  4. Olubisi Akinseloyin, MDHospitalist Physician1619309010
  5. Glenn Albin, M.DCardiovascular Disease Physician1902851116
  6. David AlexanderDiagnostic Radiology Physician1932135936

Verify Casandra Jean Offersen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Minnesota board licenses this profession
    Search for license R143340-1    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
Find the Minnesota license search

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Casandra Jean Offersen among 128 neonatal nurse practitioner records in Minnesota

Casandra Jean Offersen, CNP is one of 128 neonatal nurse practitioner records with a practice address in Minnesota. 8% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2010, is newer than 59% of them.

  • NPI issued2010 · 59% of these records are older, 38% newer
  • In a Medicare fileNo · 8% of these records are
  • In the CMS Doctors and Clinicians fileNo · 5% of these records are
  • Record last updated2010 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LN0000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neonatal Nurse Practitioner providers in Minnesota

There are 128 neonatal nurse practitioner records in Minnesota. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 128 in Minnesota → Every provider in Duluth → Neonatal Nurse Practitioner nationwide →

The 8 neonatal nurse practitioner records with the nearest ZIP codes

  1. Hayley HansenDuluth, MN 558051124457486
  2. Stephanie Kantola, RN, CNPDuluth, MN 558051831519065
  3. Debbi Peters, APRN, CNPDuluth, MN 558051003890138
  4. Julie Fox, CNNPRochester, MN 559051356471098
  5. Craig Zlimen, NNP-BCRochester, MN 559051902187602
  6. Magdalene Broberg, APRN-NNP- BCMinneapolis, MN 554541790296606
  7. Brittany Conrad, CNPMinneapolis, MN 554541487311254
  8. Maddie Frederick, DNPMinneapolis, MN 554541760100424

Common questions

What is Casandra Jean Offersen, CNP's NPI number?

Casandra Jean Offersen, CNP's National Provider Identifier (NPI) is 1841509650, issued on Sep 28, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Casandra Jean Offersen, CNP located?

The NPPES record lists a practice address at 400 E 3RD St, Duluth, MN, 55805. Phone: (218) 786-4601. Providers update this record themselves, so call before visiting.

How can I verify Casandra Jean Offersen, CNP's license?

NPPES lists Minnesota license number R143340-1, as entered by the provider. Search the Minnesota board that licenses this profession; the NPPES record confirms identity 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.