1. Home
  2. Directory
  3. Illinois
  4. Tinley Park
  5. Family Medicine
  6. NPI Profile

DR. FELICIA S WILLIAMS M.D.
NPI 1851332993
Family Medicine in Tinley Park, IL

Active since June 09, 2006PECOS EnrolledAccepts Medicare Assignment
6701 159TH ST STE 103, TINLEY PARK, IL 60477(708) 915-3100(708) 342-3060 Get Directions Write a Review

NPPES record last updated: September 17, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 17, 2025, Jul 7, 2021, Jun 30, 2020 (3 updates tracked since 2020).

About Dr. Felicia S Williams M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. FELICIA S WILLIAMS M.D. (NPI 1851332993) is an individual family medicine provider in Tinley Park, Illinois, licensed in Illinois (036-107932) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, is affiliated with The University Of Chicago Medical Center, and is a graduate of Rush Medical College Of Rush University (1999).

NPPES Registry Identity

NPI1851332993
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. FELICIA S WILLIAMSCredential: M.D.
Location Address6701 159TH ST STE 103Tinley Park, IL 60477-1758
Mailing Address6701 159th St Ste 103Tinley Park, IL 60477-1758 · (708) 915-3100 · Fax (708) 342-3060
Phone(708) 915-3100
Fax(708) 342-3060
Sole ProprietorNo
Medical School CMSRush Medical College Of Rush UniversityGraduated 1999
Enumeration DateJune 9, 2006
Last NPPES UpdateSeptember 17, 20253 updates tracked since enumeration
NPPES CertifiedSeptember 17, 2025
✔ NPI 1851332993 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in IL · 036-107932
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
6701 159TH ST STE 103, Tinley Park, IL 60477
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.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. Felicia S Williams 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.

PECOS PAC ID8426215971
PECOS Enrollment IDI20120210000446
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Felicia Williams reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Family Christian Health Center
6.3 mi
Federally Qualified Health Center (FQHC)
15620 WOOD ST
Harvey, IL 60426
  • Reassigned Medicare billing, Illinois enrollment
  • 42 clinicians in this Medicare group
NPI 1487240016 (708) 596-5177
Ucm Medical Group Sub, LLC
6.8 mi
Family Medicine
71 W 156TH ST, 5TH FLOOR
Harvey, IL 60426
  • Reassigned Medicare billing, Illinois enrollment
  • 126 clinicians in this Medicare group
NPI 1467442293 (708) 915-6353
Advocate Health And Hospitals Corporation
8.5 mi
Mental Health (Including Community Mental Health Center)
4700 W 95TH ST, SUITE LOWER LEVEL 5
Oak Lawn, IL 60453
  • Reassigned Medicare billing, Illinois enrollment
  • 4,870 clinicians in this Medicare group
NPI 1174747075 (800) 216-1110

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare 2

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, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140088
Location5841 South MarylandChicago, IL 60637 · Cook County
Emergency services Birthing friendly

Ingalls Memorial Hospital

Acute Care Hospitals · Harvey, IL
2/5 CMS rating
OwnershipPhysician
CMS Certification Number140191
Location1 Ingalls DriveHarvey, IL 60426 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60477 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Felicia Williams's NPI number?

The NPI number for Felicia Williams is 1851332993. It was assigned to this individual provider in the NPPES registry on June 9, 2006.

Where is Felicia Williams located?

Felicia Williams practices at 6701 159th St Ste 103, Tinley Park, IL 60477. The listed phone number is (708) 915-3100.

What is Felicia Williams's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Felicia Williams enrolled in Medicare?

Yes. Felicia Williams 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 Felicia Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Felicia Williams reassigns Medicare benefits to 3 organizations: Family Christian Health Center (Harvey, IL), Ucm Medical Group Sub, LLC (Harvey, IL) and Advocate Health And Hospitals Corporation (Oak Lawn, 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 Felicia Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Felicia Williams accept?

Health plans from Oscar Health list Felicia Williams 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 Felicia Williams affiliated with any hospitals?

According to CMS data, Felicia Williams is affiliated with The University Of Chicago Medical Center and Ingalls Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Felicia Williams was last updated on September 17, 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.