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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

LOUDOUN MEDICAL GROUP, PC
NPI 1154063659
Obstetrics & Gynecology in Reston, VA

Active since April 13, 2022CLIA Certified · 2 labs
1860 TOWN CENTER DRIVE, SUITE 140, RESTON, VA 20190(703) 437-0001(703) 787-5739 Get Directions Write a Review

NPPES record last updated: July 23, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 23, 2026, Aug 18, 2023, Apr 13, 2022 (3 updates tracked since 2022).

About Loudoun Medical Group, Pc NPPES

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

LOUDOUN MEDICAL GROUP, PC (NPI 1154063659), doing business as All About Women Ob/gyn, is a healthcare organization registered as an obstetrics & gynecology in Reston, Virginia and active in the NPI registry since April 2022. The organization holds 2 active CLIA laboratory certificates and lists Mary Beth Tamasy, Ceo, as its authorized official.

NPPES Registry Identity

NPI1154063659
Entity TypeOrganization
Primary Taxonomy207V00000X
Legal Business NameLOUDOUN MEDICAL GROUP, PC
Location Address1860 TOWN CENTER DRIVE, SUITE 140Reston, VA 20190-5898
Mailing Address224-d Cornwall Street, Nw, Suite 403Leesburg, VA 20176 · (703) 737-6010 · Fax (703) 443-8643
Phone(703) 437-0001
Fax(703) 787-5739
Organization SubpartYes
Authorized OfficialMary Beth TamasyCeo · (703) 737-6010
Enumeration DateApril 13, 2022
Last NPPES UpdateJuly 23, 20263 updates tracked since enumeration
NPPES CertifiedJuly 23, 2026
✔ NPI 1154063659 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
1860 TOWN CENTER DRIVE, SUITE 140, Reston, VA 20190
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Other Names 1

Doing Business AsAll About Women Ob/gyn

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA 2

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) 49D0222617

All About Women Reston · Reston, VA
Active · expires Aug 31, 2026
CLIA Number49D0222617
Laboratory TypePhysician Office
Certificate Effective DateSeptember 1, 2024
Certificate Expiration DateAugust 31, 2026
Laboratory DirectorAlfreda Jones
Laboratory Phone(703) 437-0001
Laboratory LocationAll About Women Reston1860 Town Center Drive Suite 140, Reston, VA 20190
CLIA data matches this NPI record on: Address 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.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 49D2276775

All About Women Leesburg · Leesburg, VA
Active · expires Feb 14, 2027
CLIA Number49D2276775
Laboratory TypePhysician Office
Certificate Effective DateFebruary 15, 2025
Certificate Expiration DateFebruary 14, 2027
Laboratory DirectorAlfreda Jones
Laboratory Phone(703) 437-0001
Laboratory LocationAll About Women Leesburg224-D Cornwall St NW, Suite 304, Leesburg, VA 20176
CLIA data matches this NPI record on: 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.

Other Providers at the Same Location NPPES 4

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

SARAH W COLEMAN C.N.P., M.S.N.
Nurse Practitioner
1860 TOWN CENTER DRIVE, SUITE 140
RESTON, VA 20190
Fairfax County (703) 437-0001
SARAH DOWNER NP-BC
Nurse Practitioner (Family)
1860 TOWN CENTER DRIVE, SUITE 140
RESTON, VA 20190
Fairfax County (703) 737-6010
ALFREDA JONES M.D.
Obstetrics & Gynecology
1860 TOWN CENTER DRIVE, SUITE 140
RESTON, VA 20190
Fairfax County (703) 437-0001
ANNA RACHAL DODSON DNP
Advanced Practice Midwife
1860 TOWN CENTER DRIVE, SUITE 140
RESTON, VA 20190
Fairfax County (703) 437-0001

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 Loudoun Medical Group, PC's NPI number?

The NPI number for Loudoun Medical Group, PC is 1154063659. It was assigned to this organization in the NPPES registry on April 13, 2022. The provider is doing business as All About Women OB/GYN.

Where is Loudoun Medical Group, PC located?

Loudoun Medical Group, PC is located at 1860 Town Center Drive, Suite 140, Reston, VA 20190. The listed phone number is (703) 437-0001.

What is Loudoun Medical Group, PC's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Does Loudoun Medical Group, PC hold CLIA laboratory certificates?

Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

When was this NPI record last updated?

The NPPES record for Loudoun Medical Group, PC was last updated on July 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 days 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.