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FRANCONIA INTERNISTS, PC
NPI 1013069509
Internal Medicine in Alexandria, VA

Active since January 17, 2007CLIA 49D0903752 · Waiver
5115 FRANCONIA RD, ALEXANDRIA, VA 22310(703) 660-0026(703) 922-4253 Get Directions Write a Review

NPPES record last updated: January 9, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Franconia Internists, Pc NPPES

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

FRANCONIA INTERNISTS, PC (NPI 1013069509) is a healthcare organization registered as an internal medicine in Alexandria, Virginia and active in the NPI registry since January 2007. The organization holds a CLIA Waiver certificate valid through January 28, 2028 and lists George Peter Silis, President, as its authorized official.

NPPES Registry Identity

NPI1013069509
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameFRANCONIA INTERNISTS, PC
Location Address5115 FRANCONIA RDAlexandria, VA 22310-1928
Mailing Address5115 Franconia RdAlexandria, VA 22310-1928 · (703) 660-0026 · Fax (703) 922-4253
Phone(703) 660-0026
Fax(703) 922-4253
Organization SubpartNo
Authorized OfficialGeorge Peter SilisPresident · (703) 922-4222
Enumeration DateJanuary 17, 2007
Last NPPES UpdateJanuary 9, 2025
NPPES CertifiedJanuary 9, 2025
✔ NPI 1013069509 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in VA · 010150944
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
5115 FRANCONIA RD, Alexandria, VA 22310
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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 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)

Franconia Internists, Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

3

Medicare enrollment records show 3 clinicians reassign Medicare billing to Franconia Internists, PC, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 3 within 10 miles. They are listed nearest first.

Clinicians, nearest first (3)

Manny Silis, MD
Internal Medicine
NPI 1407932635
5115 FRANCONIA ROAD SUITE G
Alexandria, VA 22310
(703) 922-4222
✔ PECOS✔ Accepts MedicareSame address
George Silis, MD
Internal Medicine
NPI 1003977422
5115 FRANCONIA ROAD SUTIE G
Alexandria, VA 22310
(703) 922-4222
✔ PECOS✔ Accepts MedicareSame address
Nancy Johnson, CRNP
Nurse Practitioner
NPI 1972676260
5999 BURKE COMMONS ROAD
Burke, VA 22015
(703) 249-7700
✔ PECOS✔ Accepts Medicare9.5 mi

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 49D0903752

Franconia Internists, PC · Alexandria, VA
Active · expires Jan 28, 2028
CLIA Number49D0903752
Laboratory TypePhysician Office
Certificate Effective DateJanuary 29, 2026
Certificate Expiration DateJanuary 28, 2028
Laboratory DirectorGeorge P. Silis
Laboratory Phone(703) 922-4222
Laboratory LocationFranconia Internists, PC5115 Franconia Road - Suite G, Alexandria, VA 22310
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Franconia Internists, PC's NPI number?

The NPI number for Franconia Internists, PC is 1013069509. It was assigned to this organization in the NPPES registry on January 17, 2007.

Where is Franconia Internists, PC located?

Franconia Internists, PC is located at 5115 Franconia Rd, Alexandria, VA 22310. The listed phone number is (703) 660-0026.

What is Franconia Internists, PC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Franconia Internists, PC enrolled in Medicare?

Yes. Franconia Internists, PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Franconia Internists, PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Franconia Internists, PC, in Internal Medicine and Nurse Practitioner. 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. Of these, 2 practice at this address and 3 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Franconia Internists, PC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 49D0903752) is associated with this NPI, valid through January 28, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Franconia Internists, PC was last updated on January 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.