KERI M WILLIAMS LCSW
NPI 1497993752
Social Worker - Clinical in Mc Lean, VA
About Keri M Williams Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KERI M WILLIAMS LCSW (NPI 1497993752) is an individual clinical provider in Mc Lean, Virginia, licensed in Virginia (0904006926) and active in the NPI registry since January 2009. She is enrolled in Medicare PECOS, maintains a secondary practice location in Springfield, and is a graduate of Virginia Commonwealth University, School Of Medicine (2005).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Keri M Williams Lcsw 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 Reassignment
Medicare enrollment records show Keri Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fairfax, VA 22031
- Reassigned Medicare billing, Virginia and District of Columbia enrollments
- Also billed through NPI 1952320061 (District of Columbia)
- 2,379 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 22101 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Keri Williams's NPI number?
The NPI number for Keri Williams is 1497993752. It was assigned to this individual provider in the NPPES registry on January 25, 2009.
Where is Keri Williams located?
Keri Williams practices at 6845 Elm St Ste 710, Mc Lean, VA 22101. The listed phone number is (703) 848-8515.
What is Keri Williams's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Keri Williams enrolled in Medicare?
Yes. Keri 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 organization bills Medicare for Keri Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Keri Williams reassigns Medicare benefits to Inova Health Care Services (Fairfax, VA). The 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 Keri Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Keri Williams accept?
Health plans from Oscar Health list Keri 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.
When was this NPI record last updated?
The NPPES record for Keri Williams was last updated on July 12, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Keri M Williams, LCSW · NPI 1497993752
Clinical provider in Mc Lean, Virginia. Individual provider, active in the CMS NPPES registry since January 25, 2009.
## Identity
- **NPI:** 1497993752 (Entity type: Individual)
- **Enumerated:** January 25, 2009
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 0904006926 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 6845 ELM ST STE 710, Mc Lean, VA 22101-3851
- **Phone:** (703) 848-8515 · **Fax:** (703) 848-8515
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Inova Health Care Services (NPI 1669511051, Fairfax, VA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Virginia Commonwealth University, School Of Medicine, class of 2005
## Record status
- **NPPES last updated:** July 12, 2021
---
Source: [NPI Profile](https://npiprofile.com/npi/1497993752) · Data from the CMS NPPES public registry.