LEESBURG STERLING FAMILY PRACTICE
NPI 1629520531
Family Medicine in Dulles, VA

NPI Status: Active since October 26, 2016

Contact Information

24430 STONE SPRINGS BLVD
SUITE 135
DULLES, VA
ZIP 20166
Phone: (703) 957-1255
Fax: (703) 665-2375

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  • Organization
  • Family Medicine
  • CLIA Number: 49D2120907
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 10-25-2026

About LEESBURG STERLING FAMILY PRACTICE

This page provides the complete NPI Profile along with additional information for Leesburg Sterling Family Practice, a primary care provider established in Dulles, Virginia operating as a Family Medicine. The healthcare provider is registered in the NPI registry with number 1629520531 assigned on October 2016. The practitioner's primary taxonomy code is 207Q00000X. The provider is registered as an organization and their NPI record was last updated 3 years ago. Leesburg Sterling Family Practice operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The provider's is doing business as Leesburg Sterling Family Practice. The authorized official of this NPI record is Mary Beth Tamasy (Ceo)

NPI
1629520531
Provider Legal Name
LOUDOUN MEDICAL GROUP, PC
Other Organization Name
LEESBURG STERLING FAMILY PRACTICE
Other Name Type
Doing Business As (3)
Entity Type
Organization
Location Address
24430 STONE SPRINGS BLVD SUITE 135 DULLES, VA 20166
Location Phone
(703) 957-1255
Location Fax
(703) 665-2375
Mailing Address
224-D CORNWALL STREET, NW, SUITE 403 LEESBURG, VA 20176
Mailing Phone
(703) 737-6010
Is Sole Proprietor?
No
Is Organization Subpart?
Yes
Enumeration Date
10-26-2016
Last Update Date
04-24-2023
Code Navigator

A primary care provider (PCP) like Leesburg Sterling Family Practice sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, etc .

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Family Medicine

Taxonomy Code
207Q00000X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
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.

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

MARY BETH TAMASY

Authorized Official Title
CEO
Authorized Official Phone
(703) 737-6010

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
49D2120907
Facility Type
Physician Office
Certificate Effective Date
October 26, 2024
Certificate Expiration Date
October 25, 2026
Laboratory Director
JONATHAN D. CHAREN
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Leesburg Sterling Family Practice to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1629520531, we treat the final digit (1) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
6
Unchanged
Pos 3
2
Doubled → 4
Pos 4
9
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
2
Unchanged
Pos 7
0
Doubled → 0
Pos 8
5
Unchanged
Pos 9
3
Doubled → 6
Check
1
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 2 → 4 5 → 10 → 1 0 → 0 3 → 6

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 6 + 4 + 9 + 1 + 0 + 2 + 0 + 5 + 6 + 24 = 59

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1629520531.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Internal Medicine (Cardiovascular Disease)
24430 STONE SPRINGS BLVD, #425
DULLES, VA 20166
Pediatrics
24430 STONE SPRINGS BLVD, SUITE 115
DULLES, VA 20166
Surgery
24430 STONE SPRINGS BLVD, SUITE 100
DULLES, VA 20166
Specialist
24430 STONE SPRINGS BLVD, SUITE 100
DULLES, VA 20166
Specialist
24430 STONE SPRINGS BLVD, SUITE 100
DULLES, VA 20166
Internal Medicine (Hematology & Oncology)
24430 STONE SPRINGS BLVD, SUITE 515
DULLES, VA 20166
Internal Medicine
24430 STONE SPRINGS BLVD, SUITE 250
DULLES, VA 20166
Internal Medicine (Infectious Disease)
24430 STONE SPRINGS BLVD, SUITE 100
DULLES, VA 20166
Specialist
24430 STONE SPRINGS BLVD, SUITE 100
DULLES, VA 20166
Specialist
24430 STONE SPRINGS BLVD
DULLES, VA 20166
Specialist
24430 STONE SPRINGS BLVD, SUITE 100
DULLES, VA 20166
Specialist
24430 STONE SPRINGS BLVD, SUITE 100
DULLES, VA 20166
Specialist
24430 STONE SPRINGS BLVD, SUITE 100
DULLES, VA 20166
Internal Medicine
24430 STONE SPRINGS BLVD, SUITE 250
DULLES, VA 20166
Nurse Practitioner (Critical Care Medicine)
24430 STONE SPRINGS BLVD
DULLES, VA 20166
Urology
24430 STONE SPRINGS BLVD, SUITE 545
DULLES, VA 20166
Physician Assistant (Medical)
24430 STONE SPRINGS BLVD
STERLING, VA 20166
Surgery
24430 STONE SPRINGS BLVD
DULLES, VA 20166
Advanced Practice Midwife
24430 STONE SPRINGS BLVD, SUITE 550
DULLES, VA 20166
Obstetrics & Gynecology
24430 STONE SPRINGS BLVD, STE 550
DULLES, VA 20166

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1629520531, enumerated as an "organization" on October 26, 2016.

The provider is located at 24430 STONE SPRINGS BLVD SUITE 135 DULLES, VA 20166 and the phone number is (703) 957-1255.

Family Medicine with taxonomy code 207Q00000X.