Mercy Mahaga, APNP, RN
Family Nurse Practitioner · Waukesha, WI
Mercy Mahaga, APNP, RN is a family nurse practitioner with a practice address in Waukesha, Wisconsin, and NPI 1760882229, issued on Sep 2, 2014. Check the license (Wisconsin 5803-33, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mercy Mahaga
- Credential
- APNP, RN
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 5803-33 WI
Self-reported in NPPES; status is on the state search - Practice location
- 514 Riverview Ave, Waukesha, WI 53188
- Phone
- (262) 548-7666
- Enumerated
- Sep 2, 2014
- Record last updated
- Apr 10, 2026
- Fax
- (262) 970-6696
- Medicare enrollment
- Enrolled (PECOS I20160225000189); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 2,814 in Wisconsin → Look up another NPI →
Also registered at 514 Riverview Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emily Alexander, RNRegistered Nurse1992292478
- Penny AllarSocial Worker1750781159
- Allison AnschutzCase Manager/Care Coordinator1134760341
- Madeline AttewellCase Manager/Care Coordinator1548884752
- Lydia AukampCase Manager/Care Coordinator1194456111
- Joanne AyersCase Manager/Care Coordinator1003412016
Verify Mercy Mahaga in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 5803-33Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average family nurse practitioner in 2024
3,313 Medicare Part D claims for 187 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Risperidone226 claims
- Quetiapine Fumarate209 claims
- Clozapine182 claims
- Fluoxetine Hcl179 claims
- Trazodone Hcl166 claims
- Aripiprazole152 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: $456.13
16 payments; by number, the most common kind was food and beverage; the largest payer was Alkermes, 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 3 group practices
- Abg Wellness Group IncMilwaukee, WI
- Minuteclinic Diagnostic OF Wisconsin LLCMilwaukee, WI
- Waukesha CountyWaukesha, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mercy Mahaga among 2,814 family nurse practitioner records in Wisconsin
Mercy Mahaga, APNP, RN 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
- Graduated2013 · median 2019 among the 1,740 with a school on file
- Record last updated2026 · 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).
93 family nurse practitioner records list a practice address in Waukesha
They are 93 of the 2,814 NPPES records with a practice address in Waukesha, and 2,814 family nurse practitioner records in Wisconsin.
All 2,814 in Wisconsin → Every provider in Waukesha → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Stephanie Breslow, APNPWaukesha, WI 531881972904522
- Jennifer Johnson, FNPWaukesha, WI 531881043615560
- Cari Kazik, NP-CWaukesha, WI 531881194002642
- Joan Kiely, NPWaukesha, WI 531881376759498
- Holly Maciejewski, APNPWaukesha, WI 531881679950513
- Barbara Murphy, NPWaukesha, WI 531881487608444
- Carolyn Palmer, FNPWaukesha, WI 531881407248651
- Dawn Pierson, MSN, APNPWaukesha, WI 531881427206010
Common questions
What is Mercy Mahaga, APNP, RN's NPI number?
Mercy Mahaga, APNP, RN's National Provider Identifier (NPI) is 1760882229, issued on Sep 2, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Mercy Mahaga, APNP, RN located?
The NPPES record lists a practice address at 514 Riverview Ave, Waukesha, WI, 53188. Phone: (262) 548-7666. Providers update this record themselves, so call before visiting.
How can I verify Mercy Mahaga, APNP, RN's license?
NPPES lists Wisconsin license number 5803-33, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Mercy Mahaga, APNP, RN prescribe under Medicare Part D?
In 2024, Mercy Mahaga, APNP, RN had 3,313 Medicare Part D claims for 187 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.