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GWENDOLYN MARIE WALTHES
NPI 1235502907
Counselor - Professional in Williamsburg, VA

Active since November 03, 2015PECOS Enrolled
223 MCLAWS CIR, WILLIAMSBURG, VA 23185(757) 564-3100 Get Directions Write a Review

NPPES record last updated: March 19, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Gwendolyn Marie Walthes NPPES

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

GWENDOLYN MARIE WALTHES (NPI 1235502907) is an individual professional provider in Williamsburg, Virginia, licensed in Virginia (0701006367) and active in the NPI registry since November 2015. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1235502907
Entity TypeIndividualFemale
Primary Taxonomy101YP2500X
Provider Legal NameGWENDOLYN MARIE WALTHES
Location Address223 MCLAWS CIRWilliamsburg, VA 23185-5649
Mailing Address2202 Executive Dr Ste CHampton, VA 23666-6604 · (757) 827-7707
Phone(757) 564-3100
Sole ProprietorYes
Enumeration DateNovember 3, 2015
Last NPPES UpdateMarch 19, 2025
NPPES CertifiedMarch 19, 2025
✔ NPI 1235502907 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
License✔ Licensed in VA · 0701006367
223 MCLAWS CIR, Williamsburg, VA 23185
Open in Google Maps ↗

Other Names 1

Former Name (1)Gwendolyn Marie Mustard Lpc

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gwendolyn Marie Walthes is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

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

Genesis Counseling Center, Inc.
20 mi
Professional
2202 EXECUTIVE DR, SUITE C
Hampton, VA 23666
  • Reassigned Medicare billing, Virginia enrollment
  • 86 clinicians in this Medicare group
NPI 1164451399 (757) 827-7707

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 10

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

MARK A MORTIER
Counselor (Professional)
223 MCLAWS CIR
WILLIAMSBURG, VA 23185
York County (757) 564-3100
MEAGAN PLECKER WALKLEY LPC, NCC
Counselor (Professional)
223 MCLAWS CIR
WILLIAMSBURG, VA 23185
York County (757) 564-3100
REBECCA LECH LPC
Counselor (Professional)
223 MCLAWS CIR
WILLIAMSBURG, VA 23185
York County (757) 564-3100
MR. ERIC RUSSELL WARD MA
Marriage & Family Therapist
223 MCLAWS CIR
WILLIAMSBURG, VA 23185
York County (757) 564-3100
MR. HENRY L. HOPKINS LCSW
Social Worker (Clinical)
223 MCLAWS CIR
WILLIAMSBURG, VA 23185
York County (757) 564-3100
MISS TREASURE SHEREE WYNDER LCSW
Social Worker (Clinical)
223 MCLAWS CIR
WILLIAMSBURG, VA 23185
York County (757) 564-3100
MRS. DANICA AIMEE HENRICH ATR,LPC
Counselor (Professional)
223 MCLAWS CIR
WILLIAMSBURG, VA 23185
York County (757) 564-3100
MRS. DANA M LYON L.P.C.
Counselor (Professional)
223 MCLAWS CIR
WILLIAMSBURG, VA 23185
York County (757) 564-3100

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 Gwendolyn Walthes's NPI number?

The NPI number for Gwendolyn Walthes is 1235502907. It was assigned to this individual provider in the NPPES registry on November 3, 2015. The provider is also known as Gwendolyn Marie Mustard Lpc.

Where is Gwendolyn Walthes located?

Gwendolyn Walthes practices at 223 Mclaws Cir, Williamsburg, VA 23185. The listed phone number is (757) 564-3100.

What is Gwendolyn Walthes's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Is Gwendolyn Walthes enrolled in Medicare?

Yes. Gwendolyn Walthes is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gwendolyn Walthes's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gwendolyn Walthes reassigns Medicare benefits to Genesis Counseling Center, Inc. (Hampton, 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 Gwendolyn Walthes'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 Gwendolyn Walthes was last updated on March 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.