John J. Hayes, MD
Clinical Cardiac Electrophysiology Physician · Marshfield, WI
John J. Hayes, MD is a clinical cardiac electrophysiology physician with a practice address in Marshfield, Wisconsin, and NPI 1972613420, issued on Aug 30, 2006. Check the license (Wisconsin 32007, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- John J. Hayes
- Credential
- MD
- Primary taxonomy
- Clinical Cardiac Electrophysiology Physician 207RC0001X
- License number
- 32007 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1000 N Oak Ave, Marshfield, WI 54449
- Phone
- (715) 387-5511
- Enumerated
- Aug 30, 2006
- Record last updated
- Feb 28, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicaid ID
- 31719500 WI
- Entity
- Type 1 · individual
8 nearest clinical cardiac electrophysiology physician records → All 83 in Wisconsin → Look up another NPI →
Also registered at 1000 N Oak Ave
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Verify John J. Hayes in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 32007Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
John J. Hayes among 83 clinical cardiac electrophysiology physician records in Wisconsin
John J. Hayes, MD is one of 83 clinical cardiac electrophysiology physician records with a practice address in Wisconsin. 94% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 51% newer
- In a Medicare fileYes · 94% of these records are
- In the CMS Doctors and Clinicians fileNo · 84% of these records are
- Record last updated2011 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0001X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Cardiac Electrophysiology Physician providers in Wisconsin
There are 83 clinical cardiac electrophysiology physician records in Wisconsin.
All 83 in Wisconsin → Every provider in Marshfield → Clinical Cardiac Electrophysiology Physician nationwide →
The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes
- Param Sharma, MDMarshfield, WI 544491376653816
- Peter Smith, MDMarshfield, WI 544491477663912
- Weijia Wang, MDMarshfield, WI 544491790124360
- Glenn Dym, M.D.Weston, WI 544761346474806
- Sanjay Kumar, MDWeston, WI 544761063528867
- Mary Seidlitz, M.D.Weston, WI 544761285668731
- Andrew Mykytsey, MDWausau, WI 544011750547378
- Ronnie Ortiz, MDWausau, WI 544011245474410
Common questions
What is John J. Hayes, MD's NPI number?
John J. Hayes, MD's National Provider Identifier (NPI) is 1972613420, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John J. Hayes, MD located?
The NPPES record lists a practice address at 1000 N Oak Ave, Marshfield, WI, 54449. Phone: (715) 387-5511. Providers update this record themselves, so call before visiting.
How can I verify John J. Hayes, MD's license?
NPPES lists Wisconsin license number 32007, 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.
What is John J. Hayes, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.