DR. MARK J. GARWIN M.D.
NPI 1326030396
Anesthesiology in Carbondale, IL
About Dr. Mark J. Garwin M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK J. GARWIN M.D. (NPI 1326030396) is an individual anesthesiology provider in Carbondale, Illinois, licensed in Illinois (036077675) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with St Joseph Memorial Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
Other Identifiers 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. Mark J. Garwin 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 Mark Garwin reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Carbondale, IL 62903
- Reassigned Medicare billing, Illinois enrollment
- 2 clinicians in this Medicare group
Carbondale, IL 62901
- Reassigned Medicare billing, Illinois enrollment
- 702 clinicians in this Medicare group
Arlington, TX 76006
- Reassigned Medicare billing, Illinois enrollment
- 735 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Joseph Memorial Hospital
Critical Access Hospitals · Murphysboro, ILMedicare 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 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CARBONDALE, IL 62903
CARBONDALE, IL 62903
CARBONDALE, IL 62903
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 Mark Garwin's NPI number?
The NPI number for Mark Garwin is 1326030396. It was assigned to this individual provider in the NPPES registry on August 16, 2005.
Where is Mark Garwin located?
Mark Garwin practices at 35 Albany Rd, Carbondale, IL 62903. The listed phone number is (888) 804-4330.
What is Mark Garwin's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Mark Garwin enrolled in Medicare?
Yes. Mark Garwin 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 Mark Garwin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Garwin reassigns Medicare benefits to 3 organizations: Albany Clinic LLC (Carbondale, IL), Southern Illinois Medical Services, Nfp (Carbondale, IL) and Northstar Anesthesia Of Illinois, LLC (Arlington, TX). 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 Mark Garwin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mark Garwin affiliated with any hospitals?
According to CMS data, Mark Garwin is affiliated with St Joseph Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Mark Garwin was last updated on June 14, 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.