NPPES file of Aug 9, 2026

Tessa Lucille Mersberger, APNP

Nurse Practitioner · Beloit, WI

Tessa Lucille Mersberger, APNP is a nurse practitioner with a practice address in Beloit, Wisconsin, and NPI 1689432783, issued on Mar 12, 2024. Check the license (Wisconsin 15148-33, 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
1689432783
Name
Tessa Lucille Mersberger
Credential
APNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
15148-33 WI
Self-reported in NPPES; status is on the state search
Practice location
1969 W Hart RD, Beloit, WI 53511
Phone
(405) 696-7932
Enumerated
Mar 12, 2024
Record last updated
Mar 12, 2024
Medicare enrollment
Enrolled (PECOS I20240522003241); 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 1969 W Hart RD

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

  1. Lindsey AndersonSocial Worker1841815594
  2. Libby Angileri, LPC, SAC-ITProfessional Counselor1245955996
  3. Maria Maria Anleu-Smith, M.D.Child & Adolescent Psychiatry Physician1447367248
  4. Ryan Arthur, MDEmergency Medicine Physician1316444771
  5. Emily Berquist, APNPFamily Nurse Practitioner1972487817
  6. Bradley Billeter, CNPNurse Practitioner1427902212

Verify Tessa Lucille Mersberger 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 15148-33
    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.

87% fewer Medicare Part D claims than the average nurse practitioner in 2024

139 Medicare Part D claims for 102 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.

  1. Tessa Mersberger139
  2. Specialty average1,109

Most prescribed

  1. Amoxicillin-Clavulanate Potass23 claims
  2. Cephalexin22 claims
  3. Prednisone15 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 4 group practices

  1. Edgerton Hospital And Health Services, IncEdgerton, WI
  2. Southern Wisconsin Emergency Associates SCBeloit, WI
  3. Stoughton Hospital AssociationStoughton, WI
  4. Swea Fort SCFort Atkinson, WI

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

Tessa Lucille Mersberger among 3,995 nurse practitioner records in Wisconsin

Tessa Lucille Mersberger, 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 2024, is newer than 90% of them.

  • NPI issued2024 · 90% of these records are older, 5% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2023 · median 2017 among the 2,701 with a school on file
  • Record last updated2024 · 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).

37 nurse practitioner records list a practice address in Beloit

They are 37 of the 706 NPPES records with a practice address in Beloit, and 3,995 nurse practitioner records in Wisconsin.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Angela Besaw, NPBeloit, WI 535111508016817
  2. Indira Bhagwandin, APNPBeloit, WI 535111952574394
  3. Tammy Boxleitner, APNBeloit, WI 535111104903061
  4. Maureen Cain, APNBeloit, WI 535111457416752
  5. Cindy Damon, APNPBeloit, WI 535111073628269
  6. Terra Green, N.P.Beloit, WI 535111366875908
  7. Madelene Hamann, N.P.Beloit, WI 535111023485059
  8. Bridget Harcus-Wickersham, DNP, APNPBeloit, WI 535111437258589

Common questions

What is Tessa Lucille Mersberger, APNP's NPI number?

Tessa Lucille Mersberger, APNP's National Provider Identifier (NPI) is 1689432783, issued on Mar 12, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Tessa Lucille Mersberger, APNP located?

The NPPES record lists a practice address at 1969 W Hart RD, Beloit, WI, 53511. Phone: (405) 696-7932. Providers update this record themselves, so call before visiting.

How can I verify Tessa Lucille Mersberger, APNP's license?

NPPES lists Wisconsin license number 15148-33, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Tessa Lucille Mersberger, APNP prescribe under Medicare Part D?

In 2024, Tessa Lucille Mersberger, APNP had 139 Medicare Part D claims for 102 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.