DR. JOHN AMBROSE MIHELCIC MD
NPI 1134582521
Family Medicine in Peoria, IL
About Dr. John Ambrose Mihelcic Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN AMBROSE MIHELCIC MD (NPI 1134582521) is an individual family medicine provider in Peoria, Illinois, licensed in Illinois (036.153454) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. John Ambrose Mihelcic Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Mihelcic reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Litchfield, IL 62056
- Reassigned Medicare billing, Illinois enrollment
- 30 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 61603 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 22
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 17
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PEORIA, IL 61603
PEORIA, IL 61603
PEORIA, IL 61603
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Mihelcic's NPI number?
The NPI number for John Mihelcic is 1134582521. It was assigned to this individual provider in the NPPES registry on April 1, 2016.
Where is John Mihelcic located?
John Mihelcic practices at 2321 N Wisconsin Ave, Peoria, IL 61603. The listed phone number is (309) 680-7600.
What is John Mihelcic's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is John Mihelcic enrolled in Medicare?
Yes. John Mihelcic is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Mihelcic's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Mihelcic reassigns Medicare benefits to Litchfield Family Practice Center (Litchfield, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Mihelcic's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for John Mihelcic was last updated on July 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. John Ambrose Mihelcic, MD · NPI 1134582521
Family Medicine physician in Peoria, Illinois. Individual provider, active in the CMS NPPES registry since April 1, 2016.
## Identity
- **NPI:** 1134582521 (Entity type: Individual)
- **Enumerated:** April 1, 2016
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 036.153454 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 2321 N WISCONSIN AVE, Peoria, IL 61603-5613
- **Phone:** (309) 680-7600
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Litchfield Family Practice Center (NPI 1235189499, Litchfield, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 31, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1134582521) · Data from the CMS NPPES public registry.