NPPES file of Aug 9, 2026

Katie J. Rettler, APNP

Nurse Practitioner · Marinette, WI

Katie J. Rettler, APNP is a nurse practitioner with a practice address in Marinette, Wisconsin, and NPI 1225301039, issued on Feb 10, 2012. Check the license (Wisconsin 6311-33, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1225301039
Name
Katie J. Rettler
Credential
APNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
6311-33 WI
Self-reported in NPPES; status is on the state search
Practice location
2820 Roosevelt RD, Marinette, WI 54143
Phone
(715) 735-5225
Enumerated
Feb 10, 2012
Record last updated
Oct 27, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(715) 735-5388
Medicare enrollment
Enrolled (PECOS I20150603001767); accepts Medicare assignment
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.
Download card Updates feed

Also registered at 2820 Roosevelt RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Thea Aguon, OTOccupational Therapist1285382556
  2. Mary Brandner, LCSWClinical Social Worker1235879834
  3. Ashley Bretl, D-PTPhysical Therapist1154813319
  4. John Briody, M.D., SCObstetrics & Gynecology Physician1346237666
  5. Morgan BrownSpeech-Language Pathologist1679407787
  6. Youssef Chami, MDInterventional Cardiology Physician1801875588

Verify Katie J. Rettler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 6311-33
    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 Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

3.4 times the Medicare Part D claims of the average nurse practitioner in 2024

3,746 Medicare Part D claims for 689 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.

  1. Katie Rettler3,746
  2. Specialty average1,109

Most prescribed

  1. Metoprolol Succinate415 claims
  2. Furosemide315 claims
  3. Bumetanide281 claims
  4. Eliquis254 claims
  5. Carvedilol245 claims
  6. Atorvastatin Calcium161 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.

Industry payments in 2024: $32.14

2 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Katie Rettler$32.14
  2. Specialty average$791.64

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 4 group practices

  1. Bellin Memorial Hospital IncGreen Bay, WI
  2. Froedtert Manitowoc Medical Group, LLCSheboygan, WI
  3. Oconto Hospital And Medical Center IncMarinette, WI
  4. St Francis HospitalEscanaba, MI

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

Katie J. Rettler among 3,995 nurse practitioner records in Wisconsin

Katie J. Rettler, APNP is one of 3,995 nurse practitioner records with a practice address in Wisconsin. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 35% of them.

  • NPI issued2012 · 35% of these records are older, 61% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2011 · median 2017 among the 2,701 with a school on file
  • Record last updated2020 · 41% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

32 nurse practitioner records list a practice address in Marinette

They are 32 of the 452 NPPES records with a practice address in Marinette, and 3,995 nurse practitioner records in Wisconsin.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Christy Brown, APNPMarinette, WI 541431740299387
  2. Katherine Callies, APNPMarinette, WI 541431063424257
  3. Sharon Fellion, RNC WHNPMarinette, WI 541431174511943
  4. Jennifer Friday, NPMarinette, WI 541431568750834
  5. Elaine Gavaras, NPMarinette, WI 541431518054030
  6. Dianna Langner, ARNP, MSN, RNMarinette, WI 541431528322849
  7. Kathleen Magnin, A.N.P.Marinette, WI 541431306821517
  8. Marianne Mainhardt, NPMarinette, WI 541431932290004

Common questions

What is Katie J. Rettler, APNP's NPI number?

Katie J. Rettler, APNP's National Provider Identifier (NPI) is 1225301039, issued on Feb 10, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Katie J. Rettler, APNP located?

The NPPES record lists a practice address at 2820 Roosevelt RD, Marinette, WI, 54143. Phone: (715) 735-5225. Providers update this record themselves, so call before visiting.

How can I verify Katie J. Rettler, APNP's license?

NPPES lists Wisconsin license number 6311-33, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Katie J. Rettler, APNP prescribe under Medicare Part D?

In 2024, Katie J. Rettler, APNP had 3,746 Medicare Part D claims for 689 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.