TWELVESTONE MEDICAL, INC.
TWELVESTONE MEDICAL, INC. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1639032865, based in Dulles, VA. It is classified under Home Infusion Therapy Pharmacy.
Getting there
The practice address on file is 24430 STONE SPRINGS BLVD STE 515B, Dulles, VA 20166. 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.
- Status
- Approved
- Provider type
- Part B Supplier - Pharmacy
- PAC ID
- 9335269810
- Enrollment ID
- O20260415000815
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Pharmacy. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Home Infusion Therapy Pharmacy covers
Pharmacy-based, decentralized patient care organization with expertise in USP 797-compliant sterile drug compounding that provides care to patients with acute or chronic conditions generally pertaining to parenteral administration of drugs, biologics and nutritional formulae administered through catheters and/or needles in home and alternate sites. Extensive professional pharmacy services, care coordination, infusion nursing services, supplies and equipment are provided to optimize efficacy and compliance. NUCC Health Care Provider Taxonomy, code 3336H0001X
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 | 1639032865 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Dec 4, 2025 |
| Last updated | Mar 2, 2026 |
| Status | Active |
| Practice address |
24430 STONE SPRINGS BLVD STE 515B Dulles, VA 20166 (844) 893-0012 Fax (615) 278-3355 |
| Mailing address |
PO BOX 12369 Murfreesboro, TN 37129 |
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 | 6 | 3 | 9 | 0 | 3 | 2 | 8 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 6 | 9 | 0 | 3 | 4 | 8 | 3 |
Sum = 65 · next multiple of 10 = 70 · check digit = 5 · actual last digit = 5
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.