Pamela S. Mahaffey, APNP
Nurse Practitioner · Janesville, WI
Pamela S. Mahaffey, APNP is a nurse practitioner with a practice address in Janesville, Wisconsin, and NPI 1124436118, issued on Jul 23, 2014. Check the license (Wisconsin 5944-33, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Pamela S. Mahaffey
- Credential
- APNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- 5944-33 WI
143303-30 WI
Self-reported in NPPES; status is on the state search - Practice location
- 3200 E Racine St, Janesville, WI 53546
- Phone
- (608) 371-8000
- Enumerated
- Jul 23, 2014
- Record last updated
- Aug 25, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (608) 371-8939
- Medicaid ID
- 1124436118 WI
- Medicare enrollment
- Enrolled (PECOS I20141002000863); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,995 in Wisconsin → Look up another NPI →
Also registered at 3200 E Racine St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Molly ArttusPhysician Assistant1366233041
- Brittany Austin, PA-CMedical Physician Assistant1013226968
- Timothy Axe, DPMPodiatrist1619932621
- Susan Baird, DNP, APRN, FNP-BCNurse Practitioner1225305758
Verify Pamela S. Mahaffey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 5944-33Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% more Medicare Part D claims than the average nurse practitioner in 2024
1,440 Medicare Part D claims for 139 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 182 claims were for opioids.
Most prescribed
- Oxycodone Hcl118 claims
- Furosemide107 claims
- Pantoprazole Sodium69 claims
- Lisinopril56 claims
- Amlodipine Besylate45 claims
- Hydrocodone-Acetaminophen42 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
- Dean Health Systems IncJanesville, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Pamela S. Mahaffey among 3,995 nurse practitioner records in Wisconsin
Pamela S. Mahaffey, 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 2014, is newer than 43% of them.
- NPI issued2014 · 43% of these records are older, 54% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2014 · median 2017 among the 2,701 with a school on file
- Record last updated2021 · 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).
43 nurse practitioner records list a practice address in Janesville
They are 43 of the 1,538 NPPES records with a practice address in Janesville, and 3,995 nurse practitioner records in Wisconsin.
All 3,995 in Wisconsin → Every provider in Janesville → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Susan Baird, DNP, APRN, FNP-BCJanesville, WI 535461225305758
- Erika BrownJanesville, WI 535461013652536
- Miranda Coplien, APNPJanesville, WI 535461336804640
- Mark Dantuma, APNPJanesville, WI 535461407322084
- Leann Derungs, APNPJanesville, WI 535461073577607
- Ellen Ettlie, APNPJanesville, WI 535461679128771
- Amanda GreeneJanesville, WI 535461235656976
- Teresa NehlsJanesville, WI 535461235682964
Common questions
What is Pamela S. Mahaffey, APNP's NPI number?
Pamela S. Mahaffey, APNP's National Provider Identifier (NPI) is 1124436118, issued on Jul 23, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Pamela S. Mahaffey, APNP located?
The NPPES record lists a practice address at 3200 E Racine St, Janesville, WI, 53546. Phone: (608) 371-8000. Providers update this record themselves, so call before visiting.
How can I verify Pamela S. Mahaffey, APNP's license?
NPPES lists Wisconsin license number 5944-33, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Pamela S. Mahaffey, APNP prescribe under Medicare Part D?
In 2024, Pamela S. Mahaffey, APNP had 1,440 Medicare Part D claims for 139 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.