LOUDOUN MEDICAL GROUP, PC
LOUDOUN MEDICAL GROUP, PC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1962369959, based in Fairfax, VA. The organization lists 2 taxonomy classifications, with Obesity Medicine (Family Medicine) Physician recorded as primary.
Getting there
The practice address on file is 3700 JOSEPH SIEWICK DRIVE, SUITE 106, Fairfax, VA 22033. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Obesity Medicine covers
A physician who specializes in the treatment of obesity demonstrates competency in and a thorough understanding of the treatment of obesity and the genetic, biologic, environmental, social, and behavioral factors that contribute to obesity. The obesity medicine physician employs therapeutic interventions including diet, physical activity, behavioral change, and pharmacotherapy. The obesity medicine physician utilizes a comprehensive approach, and may include additional resources such as dietitians, exercise physiologists, mental health professionals and bariatric surgeons as indicated to achieve optimal results. Additionally, the obesity medicine physician maintains competency in providing pre- peri- and post-surgical care of bariatric surgery patients, promotes the prevention of obesity, and advocates for those who suffer from obesity. NUCC Health Care Provider Taxonomy, code 207QB0002X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207QB0002X | Obesity Medicine (Family Medicine) Physician Obesity Medicine | — | — | primary |
| 207Q00000X | Family Medicine Physician | — | — |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1962369959 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jan 9, 2026 |
| Last updated | Jan 28, 2026 |
| Status | Active |
| Practice address |
3700 JOSEPH SIEWICK DRIVE, SUITE 106 Fairfax, VA 22033 (571) 724-4400 |
| Mailing address |
224D CORNWALL ST NW STE 403 Leesburg, VA 20176 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 9 | 6 | 2 | 3 | 6 | 9 | 9 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 3 | 2 | 6 | 6 | 9 | 9 | 1 |
Sum = 71 · next multiple of 10 = 80 · check digit = 9 · actual last digit = 9
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.