1. Home
  2. Directory
  3. Virginia
  4. Alexandria
  5. Family Medicine
  6. NPI Profile

STEPHEN W REX MD PLLC
NPI 1700140241
Family Medicine in Alexandria, VA

Active since June 29, 2012
8101 HINSON FARM RD, SUITE 415, ALEXANDRIA, VA 22306(703) 799-4000(703) 799-4569 Get Directions Write a Review

NPPES record last updated: June 29, 2012. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Stephen W Rex Md Pllc NPPES

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

STEPHEN W REX MD PLLC (NPI 1700140241) is a healthcare organization registered as a family medicine in Alexandria, Virginia and active in the NPI registry since June 2012. The organization lists Stephen Willard Rex, President, as its authorized official.

NPPES Registry Identity

NPI1700140241
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameSTEPHEN W REX MD PLLC
Location Address8101 HINSON FARM RD, SUITE 415Alexandria, VA 22306-3403
Mailing Address8101 Hinson Farm Rd, Suite 415Alexandria, VA 22306-3403 · (703) 799-4000 · Fax (703) 799-4569
Phone(703) 799-4000
Fax(703) 799-4569
Organization SubpartNo
Authorized OfficialStephen Willard RexPresident · (703) 799-4000
Enumeration DateJune 29, 2012
✔ NPI 1700140241 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in VA · 0101051876
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
8101 HINSON FARM RD, Alexandria, VA 22306
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X MULTIPLE SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Stephen W Rex Md Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Stephen W Rex MD PLLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Stephen Rex, MD
Family Practice
NPI 1861495871
8101 HINSON FARM RD STE 415
Alexandria, VA 22306
(703) 799-9695
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Stephen W Rex MD PLLC's NPI number?

The NPI number for Stephen W Rex MD PLLC is 1700140241. It was assigned to this organization in the NPPES registry on June 29, 2012.

Where is Stephen W Rex MD PLLC located?

Stephen W Rex MD PLLC is located at 8101 Hinson Farm Rd Suite 415, Alexandria, VA 22306. The listed phone number is (703) 799-4000.

What is Stephen W Rex MD PLLC's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Stephen W Rex MD PLLC enrolled in Medicare?

Yes. Stephen W Rex MD PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Stephen W Rex MD PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Family Practice) reassigns their Medicare billing to Stephen W Rex MD PLLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Stephen W Rex MD PLLC was last updated on June 29, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.