John J. Maher, MD
Emergency Medicine Physician · Beloit, WI
John J. Maher, MD is an emergency medicine physician with a practice address in Beloit, Wisconsin, and NPI 1588762819, issued on Sep 20, 2006. Check the license (Wisconsin 026681, as entered in NPPES) on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John J. Maher
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 026681 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1969 W Hart RD, Beloit, WI 53511
- Phone
- (608) 758-7215
- Enumerated
- Sep 20, 2006
- Record last updated
- May 5, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (608) 758-3216
- Medicaid ID
- 306490000 WI
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,464 in Wisconsin → Look up another NPI →
Also registered at 1969 W Hart RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Maria Maria Anleu-Smith, M.D.Child & Adolescent Psychiatry Physician1447367248
- Ryan Arthur, MDEmergency Medicine Physician1316444771
- Emily Berquist, APNPFamily Nurse Practitioner1972487817
- Bradley Billeter, CNPNurse Practitioner1427902212
Verify John J. Maher in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 026681Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John J. Maher among 1,464 emergency medicine physician records in Wisconsin
John J. Maher, MD is one of 1,464 emergency medicine physician records with a practice address in Wisconsin. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 58% newer
- In a Medicare fileNo · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2011 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Wisconsin
There are 1,464 emergency medicine physician records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,464 in Wisconsin → Every provider in Beloit → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Ryan Arthur, MDBeloit, WI 535111316444771
- Mary Ann Bertuso, PACBeloit, WI 535111689866840
- Steven Diebold, MDBeloit, WI 535111487724019
- David Drum, PACBeloit, WI 535111306037056
- James Frey, MDBeloit, WI 535111588769392
- Liana Meffert, MDBeloit, WI 535111265179915
- Richard Radak, MDBeloit, WI 535111609912161
- Warren Tripp, MDBeloit, WI 535111174621411
Common questions
What is John J. Maher, MD's NPI number?
John J. Maher, MD's National Provider Identifier (NPI) is 1588762819, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John J. Maher, MD located?
The NPPES record lists a practice address at 1969 W Hart RD, Beloit, WI, 53511. Phone: (608) 758-7215. Providers update this record themselves, so call before visiting.
How can I verify John J. Maher, MD's license?
NPPES lists Wisconsin license number 026681, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.