Joseph George Kovacic, DO
Emergency Medicine Physician · Janesville, WI
Joseph George Kovacic, DO is an emergency medicine physician with a practice address in Janesville, Wisconsin, and NPI 1144419896, issued on Oct 18, 2007. Check the license (Wisconsin 54193-21, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Joseph George Kovacic
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 54193-21 WI
5101023053 MI
036.119037 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Mineral Point Ave, Janesville, WI 53548
- Phone
- (608) 756-6611
- Enumerated
- Oct 18, 2007
- Record last updated
- Jun 13, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (608) 756-6177
- Medicaid IDs
- 1144419896 WI
036119037 4 IL - Medicare enrollment
- Enrolled (PECOS I20100818001084); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,464 in Wisconsin → Look up another NPI →
Also registered at 1000 Mineral Point Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Joseph George Kovacic in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 54193-21Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% fewer Medicare Part D claims than the average emergency medicine physician in 2024
220 Medicare Part D claims for 162 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 41 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen34 claims
- Cephalexin26 claims
- Prednisone25 claims
- Ondansetron Odt22 claims
- Amoxicillin-Clavulanate Potass19 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 one group practice
- Mercy Health System CorporationJanesville, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph George Kovacic among 1,464 emergency medicine physician records in Wisconsin
Joseph George Kovacic, DO 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. Its NPI, issued in 2007, is newer than 42% of them.
- NPI issued2007 · 42% of these records are older, 52% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2001 · median 2011 among the 844 with a school on file
- Record last updated2017 · 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).
40 emergency medicine physician records list a practice address in Janesville
They are 40 of the 1,538 NPPES records with a practice address in Janesville, and 1,464 emergency medicine physician records in Wisconsin.
All 1,464 in Wisconsin → Every provider in Janesville → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Rachel Allen, MDJanesville, WI 535481184823999
- Yone Amuka, MDJanesville, WI 535481790929693
- Kevin Dardis, DOJanesville, WI 535481609894526
- Martin FedkoJanesville, WI 535481134351430
- Franz Keilhauer, MDJanesville, WI 535481295817047
- Louis Kroot, M.D.Janesville, WI 535481649239658
- Sean Marquis, MDJanesville, WI 535481053554089
- Joseph Mastromarino, MDJanesville, WI 535481568471985
Common questions
What is Joseph George Kovacic, DO's NPI number?
Joseph George Kovacic, DO's National Provider Identifier (NPI) is 1144419896, issued on Oct 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Joseph George Kovacic, DO located?
The NPPES record lists a practice address at 1000 Mineral Point Ave, Janesville, WI, 53548. Phone: (608) 756-6611. Providers update this record themselves, so call before visiting.
How can I verify Joseph George Kovacic, DO's license?
NPPES lists Wisconsin license number 54193-21, 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 Joseph George Kovacic, DO prescribe under Medicare Part D?
In 2024, Joseph George Kovacic, DO had 220 Medicare Part D claims for 162 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.