KERRY-ANN WILLIAMS M.D.
NPI 1598961633
Psychiatry & Neurology - Child & Adolescent Psychiatry in Concord, MA
About Kerry-ann Williams M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KERRY-ANN WILLIAMS M.D. (NPI 1598961633) is an individual child & adolescent psychiatry provider in Concord, Massachusetts, licensed in Massachusetts (251727) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS and is a graduate of Creighton University School Of Medicine (2007).
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 and accepts Medicare assignment
Kerry-ann 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.
Medicare Billing Reassignment
Medicare enrollment records show Kerry-ann Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Salem, MA 01970
- Reassigned Medicare billing, Massachusetts enrollment
- 40 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 17
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CONCORD, MA 01742
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 Kerry-ann Williams's NPI number?
The NPI number for Kerry-ann Williams is 1598961633. It was assigned to this individual provider in the NPPES registry on June 25, 2007.
Where is Kerry-ann Williams located?
Kerry-ann Williams practices at 160 Walden St, Concord, MA 01742. The listed phone number is (781) 559-4900.
What is Kerry-ann Williams's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.
Is Kerry-ann Williams enrolled in Medicare?
Yes. Kerry-ann 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 Kerry-ann Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kerry-ann Williams reassigns Medicare benefits to Justice Resource Institute, Inc. (Salem, MA). 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 Kerry-ann 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 Kerry-ann Williams was last updated on September 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.