Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John W Klousia, MD
Urology Physician in Alexandria, VA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1063491603
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Registry record
Entity type Individual (Type 1)
Name John W Klousia
Credential MD
Sex Male
Practice address 7910 Andrus Rd, Suite 6, Alexandria, VA, 22306
Phone (703) 780-5474
Fax (703) 799-4092
Enumeration date Jan 12, 2006
Last updated in NPPES Nov 25, 2013
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 010273404 | Medicaid | VA | - |
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.
Frequently asked questions
Where does John Klousia practice?
The practice location on file with NPPES is in Alexandria, VA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Klousia?
The National Provider Identifier (NPI) for John Klousia is 1063491603, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-11-25.