1. Home
  2. Directory
  3. Virginia
  4. Lake Ridge
  5. Internal Medicine
  6. NPI Profile

AMY L FRIEDENTHAL MD PC
NPI 1174722664
Internal Medicine in Lake Ridge, VA

Active since July 13, 2007CLIA 49D1018324 · Microscopy
12512 LAKE RIDGE DR STE D, LAKE RIDGE, VA 22192(703) 497-5555(703) 497-1479 Get Directions Write a Review

NPPES record last updated: July 13, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Amy L Friedenthal Md Pc NPPES

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

AMY L FRIEDENTHAL MD PC (NPI 1174722664) is a healthcare organization registered as an internal medicine in Lake Ridge, Virginia and active in the NPI registry since July 2007. The organization holds a CLIA Microscopy certificate valid through October 19, 2027 and lists Amy Friedenthal, Physician, as its authorized official.

NPPES Registry Identity

NPI1174722664
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameAMY L FRIEDENTHAL MD PC
Location Address12512 LAKE RIDGE DR STE DLake Ridge, VA 22192-2386
Mailing Address12512 Lake Ridge Dr Ste DLake Ridge, VA 22192-2386 · (703) 497-5555 · Fax (703) 497-1479
Phone(703) 497-5555
Fax(703) 497-1479
Organization SubpartNo
Authorized OfficialAmy FriedenthalPhysician · (703) 497-5555
Enumeration DateJuly 13, 2007
✔ NPI 1174722664 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
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.
12512 LAKE RIDGE DR STE D, Lake Ridge, VA 22192
Open in Google Maps ↗

Other Identifiers 1

Medicare PINC08924VA

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)

Amy L Friedenthal Md Pc 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 Amy L Friedenthal MD PC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Amy Friedenthal, MD
Internal Medicine
NPI 1427176999
125120 D LAKERIDGE DRIVE
Woodbridge, VA 22192
(703) 497-5555
✔ PECOS✔ Accepts Medicare0.1 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 for Provider-Performed Microscopy Procedures (PPMP) 49D1018324

Amy L Friedenthal, MD, PC · Woodbridge, VA
Active · expires Oct 19, 2027
CLIA Number49D1018324
Laboratory TypePhysician Office
Certificate Effective DateOctober 20, 2025
Certificate Expiration DateOctober 19, 2027
Laboratory DirectorAmy L. Friedenthal, MD
Laboratory Phone(703) 497-5555
Laboratory LocationAmy L Friedenthal, MD, PC12512 Lake Ridge Drive - D, Woodbridge, VA 22192
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform 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 Amy L Friedenthal MD PC's NPI number?

The NPI number for Amy L Friedenthal MD PC is 1174722664. It was assigned to this organization in the NPPES registry on July 13, 2007.

Where is Amy L Friedenthal MD PC located?

Amy L Friedenthal MD PC is located at 12512 Lake Ridge Dr Ste D, Lake Ridge, VA 22192. The listed phone number is (703) 497-5555.

What is Amy L Friedenthal MD PC's specialty?

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

Is Amy L Friedenthal MD PC enrolled in Medicare?

Yes. Amy L Friedenthal MD PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Amy L Friedenthal MD PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Amy L Friedenthal MD PC. 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.

Does Amy L Friedenthal MD PC hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 49D1018324) is associated with this NPI, valid through October 19, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Amy L Friedenthal MD PC was last updated on July 13, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.