DR. JESSICA NICOLE WILLIAMS MD
NPI 1740661909
Internal Medicine - Rheumatology in Saint Louis, MO
About Dr. Jessica Nicole Williams Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JESSICA NICOLE WILLIAMS MD (NPI 1740661909) is an individual rheumatology provider in Saint Louis, Missouri, licensed in Missouri (2024018737) and active in the NPI registry since June 2015. She is enrolled in Medicare PECOS, is affiliated with Barnes Jewish Hospital, and is a graduate of Emory University School Of Medicine (2015).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
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. Jessica Nicole Williams Md 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 Jessica Williams reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 1,133 clinicians in this Medicare group
Atlanta, GA 30303
- Reassigned Medicare billing, Georgia enrollment
- 2,681 clinicians in this Medicare group
Atlanta, GA 30322
- Reassigned Medicare billing, Georgia enrollment
- 4,840 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.
Barnes Jewish Hospital
Acute Care Hospitals · Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63129 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT LOUIS, MO 63129
SAINT LOUIS, MO 63129
SAINT LOUIS, MO 63129
SAINT LOUIS, MO 63129
SAINT LOUIS, MO 63129
SAINT LOUIS, MO 63129
SAINT LOUIS, MO 63129
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 Jessica Williams's NPI number?
The NPI number for Jessica Williams is 1740661909. It was assigned to this individual provider in the NPPES registry on June 14, 2015.
Where is Jessica Williams located?
Jessica Williams practices at 5201 Mid America Plz Div Im Rheumatology, Ste 2300, Saint Louis, MO 63129. The listed phone number is (314) 286-2635.
What is Jessica Williams's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Jessica Williams enrolled in Medicare?
Yes. Jessica 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 Jessica Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jessica Williams reassigns Medicare benefits to 3 organizations: Washington University (Saint Louis, MO), Emory Medical Care Foundation Inc (Atlanta, GA) and The Emory Clinic Inc (Atlanta, GA). 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 Jessica Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jessica Williams accept?
Health plans from Cox HealthPlans and UnitedHealthcare list Jessica 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 Jessica Williams affiliated with any hospitals?
According to CMS data, Jessica Williams is affiliated with Barnes Jewish Hospital.
When was this NPI record last updated?
The NPPES record for Jessica Williams was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Dr. Jessica Nicole Williams, MD · NPI 1740661909
Rheumatology physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since June 14, 2015.
## Identity
- **NPI:** 1740661909 (Entity type: Individual)
- **Enumerated:** June 14, 2015
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** 2024018737 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 5201 MID AMERICA PLZ, DIV IM RHEUMATOLOGY, STE 2300, Saint Louis, MO 63129-0002
- **Phone:** (314) 286-2635 · **Fax:** (314) 286-2338
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Washington University (NPI 1992746903, Saint Louis, MO); Emory Medical Care Foundation Inc (NPI 1063452381, Atlanta, GA); The Emory Clinic Inc (NPI 1396798229, Atlanta, GA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Emory University School Of Medicine, class of 2015
## Record status
- **NPPES last updated:** April 17, 2025
- **Other identifiers:** Medicaid 200147488 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1740661909) · Data from the CMS NPPES public registry.