NPPES file of Aug 9, 2026

Rebeka Lynn Mercker, MD

Family Medicine Physician · Belleville, WI

Rebeka Lynn Mercker, MD is a family medicine physician with a practice address in Belleville, Wisconsin, and NPI 1154174050, issued on Apr 9, 2024. Check the license (Wisconsin 86822-20, as entered in NPPES) on the Wisconsin Medical Examining Board; 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
1154174050
Name
Rebeka Lynn Mercker
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
86822-20 WI
Self-reported in NPPES; status is on the state search
Practice location
1121 Bellwest Blvd, Belleville, WI 53508
Phone
(608) 424-3384
Enumerated
Apr 9, 2024
Record last updated
Jan 23, 2026
Fax
(608) 424-6353
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1121 Bellwest Blvd

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

  1. Julia Beccue, MDFamily Medicine Physician1447945811
  2. Kathryn Breslin, MDStudent in an Organized Health Care Education/Training Program1265229264
  3. Jensena Carlson, MDFamily Medicine Physician1316259617
  4. Angela Clark, PAMedical Physician Assistant1235195835
  5. Catherine Cogley, DOStudent in an Organized Health Care Education/Training Program1316734320
  6. Julie Connor, MDStudent in an Organized Health Care Education/Training Program1982457859

Verify Rebeka Lynn Mercker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 86822-20
    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
Open 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.

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97% fewer Medicare Part D claims than the average family medicine physician in 2024

106 Medicare Part D claims for 31 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Rebeka Mercker106
  2. Specialty average3,544

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.

Rebeka Lynn Mercker among 3,765 family medicine physician records in Wisconsin

Rebeka Lynn Mercker, MD is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% 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 98% of them.

  • NPI issued2024 · 98% of these records are older, 1% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2026 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

17 family medicine physician records list a practice address in Belleville

They are 17 of the 88 NPPES records with a practice address in Belleville, and 3,765 family medicine physician records in Wisconsin.

The 8 family medicine physician records with the nearest ZIP codes

  1. Bruce Barrett, MD PHDBelleville, WI 535081427018720
  2. Jensena Carlson, MDBelleville, WI 535081316259617
  3. Byron Crouse, MDBelleville, WI 535081376595488
  4. George Gay, M.D.Belleville, WI 535081679597793
  5. Brenna Gibbons, MDBeleville, WI 535081083176861
  6. Brian Kenealy, MDBelleville, WI 535081043849540
  7. Jillian Landeck, M.D.Belleville, WI 535081912317181
  8. Jennifer Lochner, MDBelleville, WI 535081063420511

Common questions

What is Rebeka Lynn Mercker, MD's NPI number?

Rebeka Lynn Mercker, MD's National Provider Identifier (NPI) is 1154174050, issued on Apr 9, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Rebeka Lynn Mercker, MD located?

The NPPES record lists a practice address at 1121 Bellwest Blvd, Belleville, WI, 53508. Phone: (608) 424-3384. Providers update this record themselves, so call before visiting.

How can I verify Rebeka Lynn Mercker, MD's license?

NPPES lists Wisconsin license number 86822-20, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Rebeka Lynn Mercker, MD prescribe under Medicare Part D?

In 2024, Rebeka Lynn Mercker, MD had 106 Medicare Part D claims for 31 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.