Carl L. Chojnacki, APNP
Nurse Practitioner · Milwaukee, WI
Carl L. Chojnacki, APNP is a nurse practitioner with a practice address in Milwaukee, Wisconsin, and NPI 1043551971, issued on Mar 1, 2013. Check the license (Wisconsin 5246, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Carl L. Chojnacki
- Credential
- APNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 5246 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2801 W Kinnickinnic River Pkwy, Milwaukee, WI 53215
- Phone
- (414) 649-6780
- Enumerated
- Mar 1, 2013
- Record last updated
- Nov 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 100028712 WI
- Medicare enrollment
- Enrolled (PECOS I20130405000345); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 2801 W Kinnickinnic River Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Carl L. Chojnacki in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 5246Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% more Medicare Part D claims than the average nurse practitioner in 2024
2,132 Medicare Part D claims for 407 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 60% of claims.
Most prescribed
- Lantus Solostar207 claims
- Levothyroxine Sodium147 claims
- Insulin Lispro Kwikpen U-100113 claims
- Humalog Kwikpen U-100110 claims
- Ozempic108 claims
- Metformin Hcl Er90 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 2 group practices
- Aurora Advanced Healthcare, Inc.New Berlin, WI
- Aurora Medical Group, Inc.Milwaukee, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
695 nurse practitioner records list a practice address in Milwaukee
They are 695 of the 18,389 NPPES records with a practice address in Milwaukee, and 3,995 nurse practitioner records in Wisconsin.
All 695 in Milwaukee → All 3,995 in Wisconsin → Every provider in Milwaukee →
Other nurse practitioner records in Wisconsin
- Caroline Aaberg, APNPMadison, WI1881384394
- Joyce Abbott, APNPOshkosh, WI1003824665
- Mohamed Abdelazim, APNPAppleton, WI1760266696
- Jacklyn Abel, AGACNP-BCMauston, WI1104631506
- Henrietta Abili, APNPGermantown, WI1174859524
- Jade Abts, NPGreen Bay, WI1992293708
- Karalyn Adam, DNP, RNMarshfield, WI1780933051
- Carol Adamczyk, MSNWauwatosa, WI1457502395
- Amanda Adams, NPMadison, WI1023366598
- Bernadette Adams, FNPWestby, WI1427047620
Common questions
What is Carl L. Chojnacki, APNP's NPI number?
Carl L. Chojnacki, APNP's National Provider Identifier (NPI) is 1043551971, issued on Mar 1, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Carl L. Chojnacki, APNP located?
The NPPES record lists a practice address at 2801 W Kinnickinnic River Pkwy, Milwaukee, WI, 53215. Phone: (414) 649-6780. Providers update this record themselves, so call before visiting.
How can I verify Carl L. Chojnacki, APNP's license?
NPPES lists Wisconsin license number 5246, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Carl L. Chojnacki, APNP prescribe under Medicare Part D?
In 2024, Carl L. Chojnacki, APNP had 2,132 Medicare Part D claims for 407 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.