Dr. John David Alachnowicz, DDS
Dr. John David Alachnowicz is a General Practice Dentistry provider (Dentist) practicing in Dumfries, VA, registered in the NPPES registry with NPI 1649342247 since 2006. The credential DDS stands for Doctor of Dental Surgery. Practices at J. David Alachnowicz DDS PC (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1649342247 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. John David Alachnowicz |
| Credential | DDS |
| Sex | Male |
| Practice address | 3759 FETTLER PARK DR, Dumfries, VA, 22025 |
| Phone | 7036342529 |
| Enumeration date | 2006-11-15 |
| Last updated in NPPES | 2009-02-03 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 1223G0001X | General Practice Dentistry | Primary | VA0401410045 | VA |
DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential
Copy-ready billing details
Provider: John Alachnowicz, DDS NPI: 1649342247 Taxonomy: 1223G0001X (General Practice Dentistry) Address: 3759 FETTLER PARK DR, Dumfries, VA, 22025
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1245478858 | J. David Alachnowicz DDS PC | Organization | Dentist | Dumfries, VA |
Verify this record
Cross-check NPI 1649342247 against the authoritative CMS record: view Dr. John David Alachnowicz on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2009-02-03.