Kathryn Grace Warren, APNP
Family Nurse Practitioner · Green Bay, WI
Kathryn Grace Warren, APNP is a family nurse practitioner with a practice address in Green Bay, Wisconsin, and NPI 1255747325, issued on Jul 9, 2014. Check the license (Wisconsin 5881-33, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kathryn Grace Warren
- Credential
- APNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 5881-33 WI
138209-30 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2714 Riverview Dr, Green Bay, WI 54313
- Phone
- (920) 430-4760
- Enumerated
- Jul 9, 2014
- Record last updated
- Dec 31, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (920) 430-4774
- Medicare enrollment
- Enrolled (PECOS I20140909001490); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 2,814 in Wisconsin → Look up another NPI →
Also registered at 2714 Riverview Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Izabela Ditchen, MDFamily Medicine Physician1104800911
- Tammy Durant, MDFamily Medicine Physician1184690448
- Teaghan EverardProfessional Counselor1629955158
- Cathy Freis, NPNurse Practitioner1467437830
- Loren Fuglestad, MDFamily Medicine Physician1669456463
- Donald Hartig, MDInternal Medicine Physician1073597803
Verify Kathryn Grace Warren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 5881-33Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.1 times the Medicare Part D claims of the average family nurse practitioner in 2024
5,294 Medicare Part D claims for 429 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 63 claims were for opioids.
Most prescribed
- Atorvastatin Calcium426 claims
- Losartan Potassium247 claims
- Omeprazole229 claims
- Levothyroxine Sodium185 claims
- Lisinopril155 claims
- Amlodipine Besylate146 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: $15.45
1 payment: food and beverage; the largest payer was Medtronic, Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Bellin Memorial Hospital IncGreen Bay, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathryn Grace Warren among 2,814 family nurse practitioner records in Wisconsin
Kathryn Grace Warren, APNP is one of 2,814 family nurse practitioner records with a practice address in Wisconsin. 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 2014, is newer than 29% of them.
- NPI issued2014 · 29% of these records are older, 66% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2014 · median 2019 among the 1,740 with a school on file
- Record last updated2019 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
215 family nurse practitioner records list a practice address in Green Bay
They are 215 of the 4,619 NPPES records with a practice address in Green Bay, and 2,814 family nurse practitioner records in Wisconsin.
All 2,814 in Wisconsin → Every provider in Green Bay → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Cindy AikenGreen Bay, WI 543131770729485
- Douglas Bartelt, APNPGreen Bay, WI 543131184956864
- Paula Ferron, APNPGreen Bay, WI 543131467888735
- Jenna Fredrick, APNPGreen Bay, WI 543131528347762
- Stephanie Hayes, APNP, FNPGreen Bay, WI 543131144654120
- Amy Hess, NURSE PRACTITIONERGreen Bay, WI 543131083827497
- Laura Klein, F-NPGreen Bay, WI 543131376984732
- Patti Marquardt, APNPGreen Bay, WI 543131306963962
Common questions
What is Kathryn Grace Warren, APNP's NPI number?
Kathryn Grace Warren, APNP's National Provider Identifier (NPI) is 1255747325, issued on Jul 9, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Kathryn Grace Warren, APNP located?
The NPPES record lists a practice address at 2714 Riverview Dr, Green Bay, WI, 54313. Phone: (920) 430-4760. Providers update this record themselves, so call before visiting.
How can I verify Kathryn Grace Warren, APNP's license?
NPPES lists Wisconsin license number 5881-33, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Kathryn Grace Warren, APNP prescribe under Medicare Part D?
In 2024, Kathryn Grace Warren, APNP had 5,294 Medicare Part D claims for 429 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.