ASHLEY JILLIAN WILLIAMSON M.D.
NPI 1548640386
Surgery - Vascular Surgery in Chicago, IL
About Ashley Jillian Williamson M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ASHLEY JILLIAN WILLIAMSON M.D. (NPI 1548640386) is an individual vascular surgery provider in Chicago, Illinois, licensed in Illinois (036143888) and active in the NPI registry since June 2015. She is enrolled in Medicare PECOS, is affiliated with The University Of Chicago Medical Center, and maintains a secondary practice location in Crown Point.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ashley Jillian Williamson 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.
Areas of Expertise CMS Part B claims 4
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.
The University Of Chicago Medical Center
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60637 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHICAGO, IL 60637
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 Ashley Williamson's NPI number?
The NPI number for Ashley Williamson is 1548640386. It was assigned to this individual provider in the NPPES registry on June 7, 2015.
Where is Ashley Williamson located?
Ashley Williamson practices at 5841 S Maryland Ave # Mc6040, Chicago, IL 60637. The listed phone number is (773) 753-1880.
What is Ashley Williamson's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.
Is Ashley Williamson enrolled in Medicare?
Yes. Ashley Williamson 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.
What insurance does Ashley Williamson accept?
Health plans from Anthem Blue Cross and Blue Shield and CareSource list Ashley Williamson 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 Ashley Williamson affiliated with any hospitals?
According to CMS data, Ashley Williamson is affiliated with The University Of Chicago Medical Center.
When was this NPI record last updated?
The NPPES record for Ashley Williamson was last updated on June 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.
