DR. DEBORAH WILLIAMS PSY.D.
NPI 1649631326
Psychologist in Gaithersburg, MD
About Dr. Deborah Williams Psy.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DEBORAH WILLIAMS PSY.D. (NPI 1649631326) is an individual psychologist in Gaithersburg, Maryland, licensed in Maryland (05525) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Deborah Williams Psy.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Deborah Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Arlington, VA 22203
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- 1,534 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.
Other Providers at the Same Location NPPES 15
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GAITHERSBURG, MD 20878
GAITHERSBURG, MD 20878
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 Deborah Williams's NPI number?
The NPI number for Deborah Williams is 1649631326. It was assigned to this individual provider in the NPPES registry on March 9, 2016.
Where is Deborah Williams located?
Deborah Williams practices at 60 Market St Suite 213, Gaithersburg, MD 20878. The listed phone number is (240) 750-6467.
What is Deborah Williams's specialty?
The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.
Is Deborah Williams enrolled in Medicare?
Yes. Deborah Williams is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Deborah Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Deborah Williams reassigns Medicare benefits to Privia Medical Group, LLC (Arlington, 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 Deborah Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Deborah Williams was last updated on March 9, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.