JASON GRIFFIN MD
NPI 1275551582
Internal Medicine in Hinsdale, IL
About Jason Griffin Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JASON GRIFFIN MD (NPI 1275551582) is an individual internal medicine provider in Hinsdale, Illinois, licensed in Illinois (036-092404) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Louisiana State University School Of Medicine In Shreveport (1992).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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 Griffin Md 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 Griffin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Downers Grove, IL 60515
- Reassigned Medicare billing, Illinois enrollment
- 1,061 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 29
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 60521 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
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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HINSDALE, IL 60521
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 Griffin's NPI number?
The NPI number for Jason Griffin is 1275551582. It was assigned to this individual provider in the NPPES registry on July 17, 2006.
Where is Jason Griffin located?
Jason Griffin practices at 40 S Clay St Ste 210E, Hinsdale, IL 60521. The listed phone number is (630) 323-3540.
What is Jason Griffin's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Jason Griffin enrolled in Medicare?
Yes. Jason Griffin 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 Griffin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jason Griffin reassigns Medicare benefits to Dupage Medical Group Ltd (Downers Grove, 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 Griffin'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 Jason Griffin was last updated on August 8, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.