VA-Aligned Medical Disability Examinations

Clinical expertise and federal delivery, in one vehicle.

A joint venture of

Windsor Group LLC Zybs Medical Group LLC

WinZybs pairs Zybs Medical Group LLC’s VA-aligned medical disability examination capabilities with Windsor Group LLC’s proven program management expertise, workforce infrastructure, and experience as an established federal prime contractor.

Together, the joint venture brings the clinical expertise, operational discipline, and scalable infrastructure required to mobilize and manage large, geographically dispersed workforces while delivering compliant, audit-ready results at national scale.

Capability Statement Review contract access

200K+Veterans examined
in recent years

100+Healthcare providers
in network

$1B+In impact
delivered

100+Prime contracts
served

Core Services

Two disciplines, delivered as one contract.

Most agencies buy clinical examination capacity and professional services separately, then carry the coordination burden themselves. WinZybs was formed so that a single award covers both, with one accountable team behind the deliverable.

Clinical

VA-aligned examination
and medical review

VA-aligned Medical Disability Examination (MDE) clinical support
Acceptable Clinical Evidence (ACE) reviews
Independent Medical Opinions (IMOs)
Medical record reviews, summaries, and DBQ-aligned documentation
Clinical quality assurance, compliance, and audit-ready deliverables
Credentialed healthcare professionals across clinical specialties

Operational & Professional

Program delivery and
workforce infrastructure

Professional, technical, and non-technical staffing, temporary and permanent
Program and project management
IT support services
Human capital and HR management support
Training, professional development, and management consulting

The Joint Venture

Each partner brings what the other cannot.

WinZybs is not a referral arrangement. It is a formed joint venture between a federal prime with an established contract portfolio and a clinical group that has been performing disability examinations since 2016.

Federal contracting and delivery

Windsor Group LLC

Bethesda, Maryland. A federal prime contractor carrying multiple socioeconomic designations, an ISO-certified and CMMI-appraised delivery apparatus, and past performance across USDA, VA, HHS, Commerce, Treasury, Interior, and the Department of Defense. Team Windsor supplies the contract access, program management discipline, and workforce operations behind every WinZybs engagement.

8(a)SDVOSBEDWOSB WOSBMDOT MBE / SBE MD VSBEWBENC WBE CMMI SVC ML3

Clinical operations

Zybs Medical Group LLC

Largo, Maryland. Established 2016. A clinical group operating a network of more than 100 credentialed providers across sixteen locations, including nurse practitioners, audiologists, optometrists, and psychologists. Compensation and pension examinations, military readiness and separation exams, audiology and behavioral health evaluations, and medical staffing.

C&P ExaminationsReadiness Exams AudiologyBehavioral Health Separation & RetirementMedical Staffing

Contract Access

Vehicles, set-asides, and codes.

Through the teaming agreement, the joint venture has access to every vehicle and certification held by Windsor Group LLC.

GSA Multiple Award Schedule: 47QRAA21D006R
OASIS+ Management & Advisory: 47QRCA25DS749 SB 47QRCA24DV358 SDVOSB 47QRCA24DW352 WOSB 47QRCA25DA044 8(a)
MDA SHIELD: HQ085925RE001
NASA SEWP VI: Expected Fall 2026
MAS 8(a) Pool: Sole Source & Competitive

Set-Asides & Certifications

SBA 8(a) Business DevelopmentThrough 30 July 2029
Service-Disabled Veteran-Owned Small BusinessSDVOSB
Economically Disadvantaged Women-OwnedEDWOSB
Women-Owned Small BusinessWOSB
Maryland DOT CertifiedMBE / SBE
Maryland Veteran-Owned Small BusinessVSBE
Women's Business Enterprise National CouncilWBE
Process maturity and qualityISO/IEC 17021-1 · CMMI SVC ML3

NAICS Codes

621111Offices of Physicians

621399Offices of Other Health Practitioners

541611Administrative Management & General Management Consulting

541690Other Scientific & Technical Consulting Services

561110Office Administrative Services

56142Call Center Operations

Socioeconomic certifications and contract vehicles listed above are made available to federal customers through a teaming agreement with Windsor Group LLC.

Why This Team

Built for programs that cannot afford rework.

Multiple socioeconomic designations

Nine certifications on a single award.

Proven federal experience

Delivery history across federal programs.

Agile, responsive delivery

Sized to move without a change-order cycle.

Fully vetted personnel

Credentialed clinical and professional staff.

High retention

Continuity on the same team, not a revolving roster.

Audit-ready deliverables

Accurate and compliant on the first submission.

Leadership

Two principals, one accountable team.

The venture is led directly by the chief executives of both partner firms. No layer of account management between the buyer and the people answerable for delivery.

Photograph to come Dr. Thelma Ezeonu

Clinical operations

Dr. Thelma Ezeonu

Chief Executive Officer, Zybs Medical Group LLC

Leads Zybs Medical Group LLC, established in 2016 and now a network of more than 100 credentialed providers across sixteen locations. Her teams have delivered compensation and pension examinations, readiness and separation exams, audiology, and behavioral health evaluations to more than 200,000 veterans.

Photograph to come Diedre L. Windsor

Federal contracting and delivery

Diedre L. Windsor

Founder & Chief Executive Officer, Windsor Group LLC

Founded Windsor Group LLC and built it into a federal contracting powerhouse with a proven record of delivering complex, mission-critical programs across USDA, VA, HHS, Commerce, Treasury, and Defense. Under her leadership, Windsor Group LLC has been named to the Inc. 5000 list of America’s fastest-growing private companies for six consecutive years and the Washington Business Journal’s list of top corporate philanthropists in Greater Washington for four consecutive years.

Certifications & Registrations

Verified, and current.

Nine socioeconomic certifications across federal, State of Maryland, and national registries, held and maintained by the joint venture partners. Certificate numbers and expiration dates are in the capability statement.

Socioeconomic