JOHN F. HAMILTON M.D.
NPI 1457343931
Pathology - Anatomic Pathology & Clinical Pathology in Park Ridge, IL
About John F. Hamilton M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN F. HAMILTON M.D. (NPI 1457343931) is an individual anatomic pathology & clinical pathology provider in Park Ridge, Illinois, licensed in Illinois (036066429) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Advocate Trinity Hospital, and is a graduate of Baylor College Of Medicine (1980).
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 and accepts Medicare assignment
John F. Hamilton M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show John Hamilton reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Park Ridge, IL 60068
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Midwest Diagnostic Pathology, S.C.
- 54 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 2
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Advocate Trinity Hospital
Acute Care Hospitals · Chicago, ILAdvocate Christ Hospital & Medical Center
Acute Care Hospitals · Oak Lawn, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60068 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
PARK RIDGE, IL 60068
PARK RIDGE, IL 60068
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 Hamilton's NPI number?
The NPI number for John Hamilton is 1457343931. It was assigned to this individual provider in the NPPES registry on August 19, 2005.
Where is John Hamilton located?
John Hamilton practices at 1775 Dempster St Lutheran General Hospital / Pathology Department, Park Ridge, IL 60068. The listed phone number is (847) 723-2210.
What is John Hamilton's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.
Is John Hamilton enrolled in Medicare?
Yes. John Hamilton is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for John Hamilton's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Hamilton reassigns Medicare benefits to Midwest Diagnostic Pathology Sc (Park Ridge, 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 Hamilton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is John Hamilton affiliated with any hospitals?
According to CMS data, John Hamilton is affiliated with Advocate Trinity Hospital and Advocate Christ Hospital & Medical Center.
When was this NPI record last updated?
The NPPES record for John Hamilton was last updated on December 22, 2021. 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 F. Hamilton, M.D. · NPI 1457343931
Anatomic Pathology & Clinical Pathology physician in Park Ridge, Illinois. Individual provider, active in the CMS NPPES registry since August 19, 2005.
## Identity
- **NPI:** 1457343931 (Entity type: Individual)
- **Enumerated:** August 19, 2005
- **Primary specialty:** Pathology - Anatomic Pathology & Clinical Pathology · taxonomy 207ZP0102X
- **State license:** 036066429 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1775 DEMPSTER ST, LUTHERAN GENERAL HOSPITAL / PATHOLOGY DEPARTMENT, Park Ridge, IL 60068-1143
- **Phone:** (847) 723-2210
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Midwest Diagnostic Pathology Sc (NPI 1982606380, Park Ridge, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Baylor College Of Medicine, class of 1980
## Record status
- **NPPES last updated:** December 22, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1457343931) · Data from the CMS NPPES public registry.