DR. SHANNON ERIN WITTY M.D.
NPI 1013354588
Family Medicine in Belleville, IL
About Dr. Shannon Erin Witty M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SHANNON ERIN WITTY M.D. (NPI 1013354588) is an individual family medicine provider in Belleville, Illinois, licensed in Illinois (125.062855) and active in the NPI registry since May 2013. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Washington, and is a graduate of Other (2013).
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
Dr. Shannon Erin Witty 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
4Medicare enrollment records show Shannon Witty reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63128
- Reassigned Medicare billing, Missouri enrollment
- Medicare enrollment name: St Anthonys Physician Organization Hospitalist Services Lc
- 340 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 326 clinicians in this Medicare group
Festus, MO 63028
- Reassigned Medicare billing, Missouri enrollment
- 299 clinicians in this Medicare group
Washington, MO 63090
- Reassigned Medicare billing, Missouri enrollment
- 261 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 3
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.
Mercy Hospital Washington
Acute Care Hospitals · Washington, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 62220 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
BELLEVILLE, IL 62220
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 Shannon Witty's NPI number?
The NPI number for Shannon Witty is 1013354588. It was assigned to this individual provider in the NPPES registry on May 23, 2013.
Where is Shannon Witty located?
Shannon Witty practices at 180 S 3rd St Ste 400, Belleville, IL 62220. The listed phone number is (618) 233-7880.
What is Shannon Witty's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Shannon Witty enrolled in Medicare?
Yes. Shannon Witty 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 Shannon Witty's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Shannon Witty reassigns Medicare benefits to 4 organizations: St Anthonys Physician Organization Hospitalist Services, L.C. (Saint Louis, MO), Mercy Clinic Adult Hospitalists - St. Louis, LLC (Saint Louis, MO), Mercy Clinic Adult Hospitalists- Jefferson, LLC (Festus, MO) and Mercy Clinic Adult Hospitalists - Washington, LLC (Washington, MO). 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 Shannon Witty's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Shannon Witty accept?
Health plans from Anthem Blue Cross and Blue Shield list Shannon Witty 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 Shannon Witty affiliated with any hospitals?
According to CMS data, Shannon Witty is affiliated with Mercy Hospital Washington.
When was this NPI record last updated?
The NPPES record for Shannon Witty was last updated on May 23, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.