DR. MACK E MCCAIN M.D.
NPI 1558321190
Internal Medicine - Gastroenterology in Herrin, IL
About Dr. Mack E Mccain M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MACK E MCCAIN M.D. (NPI 1558321190) is an individual gastroenterology provider in Herrin, Illinois, licensed in Illinois (36079027) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Carle Foundation Hospital, and maintains a secondary practice location in Carbondale.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Dr. Mack E Mccain 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 Reassignments
3Medicare enrollment records show Mack Mccain reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Marion, IL 62959
- Reassigned Medicare billing, Illinois enrollment
- 228 clinicians in this Medicare group
Carbondale, IL 62901
- Reassigned Medicare billing, Illinois enrollment
- 702 clinicians in this Medicare group
Urbana, IL 61801
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Carle Health Care Incorporated
- 2,516 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 14
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Carle Foundation Hospital
Acute Care Hospitals · Urbana, ILHeartland Regional Medical Center
Acute Care Hospitals · Marion, ILCrossroads Community Hospital
Acute Care Hospitals · Mount Vernon, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 62948 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.
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.
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 Mack Mccain's NPI number?
The NPI number for Mack Mccain is 1558321190. It was assigned to this individual provider in the NPPES registry on March 27, 2006.
Where is Mack Mccain located?
Mack Mccain practices at 404 Lincoln Dr, Herrin, IL 62948. The listed phone number is (618) 993-0056.
What is Mack Mccain's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Mack Mccain enrolled in Medicare?
Yes. Mack Mccain 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 organizations bill Medicare for Mack Mccain's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mack Mccain reassigns Medicare benefits to 3 organizations: Deaconess Illinois Specialty Clinic, Inc. (Marion, IL), Southern Illinois Medical Services, Nfp (Carbondale, IL) and Carle Health Medical Group (Urbana, IL). 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 Mack Mccain's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mack Mccain affiliated with any hospitals?
According to CMS data, Mack Mccain is affiliated with Carle Foundation Hospital, Heartland Regional Medical Center and Crossroads Community Hospital.
When was this NPI record last updated?
The NPPES record for Mack Mccain was last updated on September 27, 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.