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DR. MATTHEW CLAY WILLIAMS
NPI 1821084005
Chiropractor - Neurology in Winsted, CT

Active since September 23, 2005
88 ELM ST, WINSTED, CT 06098(860) 379-7875(860) 379-3171 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Matthew Clay Williams NPPES

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

DR. MATTHEW CLAY WILLIAMS (NPI 1821084005) is an individual neurology provider in Winsted, Connecticut, licensed in Connecticut (000796) and active in the NPI registry since September 2005. He is a graduate of National College Of Chiropractic (1987).

NPPES Registry Identity

NPI1821084005
Entity TypeIndividualMale
Primary Taxonomy111NN0400X
Provider Legal NameDR. MATTHEW CLAY WILLIAMS
Location Address88 ELM STWinsted, CT 06098-1657
Mailing Address88 Elm StWinsted, CT 06098-1657 · (860) 379-7875 · Fax (860) 379-3171
Phone(860) 379-7875
Fax(860) 379-3171
Sole ProprietorNo
Medical School CMSNational College Of ChiropracticGraduated 1987
Enumeration DateSeptember 23, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1821084005 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractor · NeurologyChiropractic Providers
Taxonomy Code111NN0400X
License✔ Licensed in CT · 000796
Definition
Chiropractic Neurology is defined as the field of functional neurology that engages the internal - and external environment of the individual in a structured and targeted approach to affect positive changes in the nervous system and consequently the physiology and behavior of an individual. Chiropractic Neurologists are board-certified specialists in non-drug, non-surgical care for those with neurologically based health problems. There are many conditions people suffer from that are in this broad category: learning and attention disorders, headaches, vertigo, pain syndromes, developmental disorders, nerve injury, spinal cord injury, head injury or stroke, movement disorders, and many other conditions.
88 ELM ST, Winsted, CT 06098
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Matthew Clay Williams is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4981656923
PECOS Enrollment IDI20130626000072

Medicare Billing Reassignment

Medicare enrollment records show Matthew Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Williams Chiropractic Center LLC
Same address
Chiropractor
88 ELM ST
Winsted, CT 06098
  • Reassigned Medicare billing, Connecticut enrollment
  • 2 clinicians in this Medicare group
NPI 1528189974 (860) 379-7875

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

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.

Chiropractic manipulative treatment, 3-4 spinal regions 98941
Chiropractic manipulative treatment for 3-4 spinal regions involves a trained professional applying controlled force to specific areas of your spine. This can help alleviate pain, improve physical function, and support your body's natural healing process.
300 services19 patients

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. KIMBERLY KOS-WILLIAMS D.C.
Chiropractor
88 ELM ST
WINSTED, CT 06098
Northwest Hills Planning Region (860) 379-7875
WILLIAMS CHIROPRACTIC CENTER LLC
Chiropractor
88 ELM ST
WINSTED, CT 06098
Northwest Hills Planning Region (860) 379-7875

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 Matthew Williams's NPI number?

The NPI number for Matthew Williams is 1821084005. It was assigned to this individual provider in the NPPES registry on September 23, 2005.

Where is Matthew Williams located?

Matthew Williams practices at 88 Elm St, Winsted, CT 06098. The listed phone number is (860) 379-7875.

What is Matthew Williams's specialty?

The primary specialty registered for this NPI is Chiropractor, specializing in Neurology, with taxonomy code 111NN0400X.

Is Matthew Williams enrolled in Medicare?

Yes. Matthew Williams is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Matthew Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Williams reassigns Medicare benefits to Williams Chiropractic Center LLC (Winsted, CT). 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 Matthew Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Matthew Williams accept?

Health plans from Anthem Blue Cross and Blue Shield list Matthew 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 Matthew Williams was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.