NICHOLAS GUASTALLI DO
NPI 1275957334
Internal Medicine in Kankakee, IL
About Nicholas Guastalli Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NICHOLAS GUASTALLI DO (NPI 1275957334) is an individual internal medicine provider in Kankakee, Illinois, licensed in Illinois (036143561) and active in the NPI registry since February 2014. He is enrolled in Medicare PECOS, is affiliated with Presence St Marys Hospital, and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Nicholas Guastalli 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 Nicholas Guastalli reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Kankakee, IL 60901
- Reassigned Medicare billing, Illinois enrollment
- 381 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 11
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.
Presence St Marys Hospital
Acute Care Hospitals · Kankakee, ILRiverside Medical Center
Acute Care Hospitals · Kankakee, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60901 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 21
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 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
KANKAKEE, IL 60901
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 Nicholas Guastalli's NPI number?
The NPI number for Nicholas Guastalli is 1275957334. It was assigned to this individual provider in the NPPES registry on February 10, 2014.
Where is Nicholas Guastalli located?
Nicholas Guastalli practices at 401 N Wall St Ste 102, Kankakee, IL 60901. The listed phone number is (815) 928-5090.
What is Nicholas Guastalli's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Nicholas Guastalli enrolled in Medicare?
Yes. Nicholas Guastalli 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 Nicholas Guastalli's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nicholas Guastalli reassigns Medicare benefits to Riverside Health System (Kankakee, 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 Nicholas Guastalli's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nicholas Guastalli accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list Nicholas Guastalli as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Nicholas Guastalli affiliated with any hospitals?
According to CMS data, Nicholas Guastalli is affiliated with Presence St Marys Hospital and Riverside Medical Center.
When was this NPI record last updated?
The NPPES record for Nicholas Guastalli 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.