JASON G. CHAMBERLIN DO
NPI 1831207349
Internal Medicine in Farmington, IL
About Jason G. Chamberlin Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JASON G. CHAMBERLIN DO (NPI 1831207349) is an individual internal medicine provider in Farmington, Illinois, licensed in Illinois (036101084) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Graham Hospital Association, and is a graduate of Des Moines University Of Osteopathic Medicine And Health Sciences (2001).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 10
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
Jason G. Chamberlin Do 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 Jason Chamberlin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Farmington, IL 61531
- Reassigned Medicare billing, Illinois enrollment
- 134 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 5
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Graham Hospital Association
Acute Care Hospitals · Canton, ILProctor Hospital
Acute Care Hospitals · Peoria, ILSaint Francis Medical Center
Acute Care Hospitals · Peoria, ILMethodist Medical Center Of Illinois
Acute Care Hospitals · Peoria, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 61531 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 23
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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Jason Chamberlin's NPI number?
The NPI number for Jason Chamberlin is 1831207349. It was assigned to this individual provider in the NPPES registry on August 25, 2006.
Where is Jason Chamberlin located?
Jason Chamberlin practices at 601 E Fort St, Farmington, IL 61531. The listed phone number is (309) 245-2406.
What is Jason Chamberlin's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Jason Chamberlin enrolled in Medicare?
Yes. Jason Chamberlin 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 Jason Chamberlin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jason Chamberlin reassigns Medicare benefits to Graham Hospital Association (Farmington, 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 Jason Chamberlin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Jason Chamberlin affiliated with any hospitals?
According to CMS data, Jason Chamberlin is affiliated with Graham Hospital Association, Proctor Hospital, Saint Francis Medical Center and Methodist Medical Center Of Illinois.
When was this NPI record last updated?
The NPPES record for Jason Chamberlin was last updated on April 14, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.