Physician Profile
Walter M. O'Brien, MD
Unclaimed ProfileAbout Dr. O'brien
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Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (703) 724-1195
- Email not available
Practice Locations
19415 DEERFIELD AVENUE, SUITE 112
Leesburg, VA 20176
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other urologists at this location 8
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Common questions
What does Dr. O'Brien specialize in?
Dr. O'Brien is an urologist in Leesburg, VA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Urology”.
NPI registry
Where is Dr. O'Brien located?
Dr. O'Brien is listed at 19415 Deerfield Avenue, Suite 112, Leesburg, VA 20176. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. O'Brien's phone number?
The number on file is (703) 724-1195. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. O'Brien's NPI number?
Dr. O'Brien's National Provider Identifier is 1730173360. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has Dr. O'Brien been practicing?
Dr. O'Brien has 21+ years experience. Registered with an NPI since 2005. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Dr. O'Brien confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. O'Brien. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.