John Ambrose Mihelcic, MD
Family Medicine Physician · Peoria, IL
John Ambrose Mihelcic, MD is a family medicine physician with a practice address in Peoria, Illinois, and NPI 1134582521, issued on Apr 1, 2016. Check the license (Illinois 036.153454, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- John Ambrose Mihelcic
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036.153454 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2321 N Wisconsin Ave, Peoria, IL 61603
- Phone
- (309) 680-7600
- Enumerated
- Apr 1, 2016
- Record last updated
- Jul 31, 2026
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 2321 N Wisconsin Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Ambrose Mihelcic in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036.153454Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% fewer Medicare Part D claims than the average family medicine physician in 2024
2,512 Medicare Part D claims for 381 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 57 claims were for opioids.
Most prescribed
- Atorvastatin Calcium145 claims
- Gabapentin93 claims
- Lisinopril90 claims
- Amlodipine Besylate84 claims
- Omeprazole81 claims
- Albuterol Sulfate Hfa70 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.
Industry payments in 2024: $757.07
35 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
John Ambrose Mihelcic among 6,215 family medicine physician records in Illinois
John Ambrose Mihelcic, MD is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 70% of them.
- NPI issued2016 · 70% of these records are older, 27% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2026 · 54% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
134 family medicine physician records list a practice address in Peoria
They are 134 of the 4,621 NPPES records with a practice address in Peoria, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Peoria → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- James Barnett, MDPeoria, IL 616031730103722
- Elizabeth Gabel, M.D.Peoria, IL 616031932587797
- David Gregory, M.D.Peoria, IL 616031871599522
- Towanda Harris, M.D.Peoria, IL 616031871507939
- David Holden, M.D.Peoria, IL 616031720094816
- Renaldo Jacques, M.D.Peoria, IL 616031477528974
- Nicole Kerner, APRNPeoria, IL 616031558969964
- Michael Koeppen, MDPeoria, IL 616031679535728
Common questions
What is John Ambrose Mihelcic, MD's NPI number?
John Ambrose Mihelcic, MD's National Provider Identifier (NPI) is 1134582521, issued on Apr 1, 2016. An NPI identifies a provider in billing; it is not a license.
Where is John Ambrose Mihelcic, MD located?
The NPPES record lists a practice address at 2321 N Wisconsin Ave, Peoria, IL, 61603. Phone: (309) 680-7600. Providers update this record themselves, so call before visiting.
How can I verify John Ambrose Mihelcic, MD's license?
NPPES lists Illinois license number 036.153454, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Ambrose Mihelcic, MD prescribe under Medicare Part D?
In 2024, John Ambrose Mihelcic, MD had 2,512 Medicare Part D claims for 381 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.