JOHN ROBERT HARDWICK M.D
NPI 1912343658
Emergency Medicine in Chicago, IL
About John Robert Hardwick M.d NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN ROBERT HARDWICK M.D (NPI 1912343658) is an individual emergency medicine provider in Chicago, Illinois and active in the NPI registry since May 2013. 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)
John Robert Hardwick M.d is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show John Hardwick reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sparks, NV 89434
- Reassigned Medicare billing, Nevada enrollment
- 117 clinicians in this Medicare group
Reno, NV 89502
- Reassigned Medicare billing, Nevada enrollment
- 69 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60612 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHICAG, IL 60612
CHICAGO, IL 60612
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 Hardwick's NPI number?
The NPI number for John Hardwick is 1912343658. It was assigned to this individual provider in the NPPES registry on May 21, 2013.
Where is John Hardwick located?
John Hardwick practices at 1901 W Harrison St, Chicago, IL 60612. The listed phone number is (312) 864-6000.
What is John Hardwick's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is John Hardwick enrolled in Medicare?
Yes. John Hardwick is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for John Hardwick's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Hardwick reassigns Medicare benefits to 2 organizations: Sound Physicians Emergency Medicine Of Nevada Bessler PLLC (Sparks, NV) and Brown, Calvanese, Cameron Ltd (Reno, NV). Each 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 Hardwick'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 Hardwick was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.
# John Robert Hardwick, M.D · NPI 1912343658
Emergency Medicine physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since May 21, 2013.
## Identity
- **NPI:** 1912343658 (Entity type: Individual)
- **Enumerated:** May 21, 2013
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **Sole proprietor:** No
## Practice location
- **Address:** 1901 W HARRISON ST, Chicago, IL 60612-3714
- **Phone:** (312) 864-6000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Sound Physicians Emergency Medicine Of Nevada Bessler PLLC (NPI 1881151231, Sparks, NV); Brown, Calvanese, Cameron Ltd (NPI 1275568479, Reno, NV) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 21, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1912343658) · Data from the CMS NPPES public registry.