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DR. WALTER M O'BRIEN MD
NPI 1730173360
Urology in Leesburg, VA

Active since September 09, 2005
92.61/100
CMS Quality Rating
19415 DEERFIELD AVENUE, SUITE 112, LEESBURG, VA 20176(703) 724-1195(703) 724-4495 Get Directions Write a Review

NPPES record last updated: January 10, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 30, 2022, Sep 27, 2022, May 15, 2020 and 1 more (4 updates tracked since 2020).

About Dr. Walter M O'brien Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WALTER M O'BRIEN MD (NPI 1730173360) is an individual urology provider in Leesburg, Virginia, licensed in Virginia (0101038671) and active in the NPI registry since September 2005.

NPPES Registry Identity

NPI1730173360
Entity TypeIndividualMale
Primary Taxonomy208800000X
Provider Legal NameDR. WALTER M O'BRIENCredential: MD
Location Address19415 DEERFIELD AVENUE, SUITE 112Leesburg, VA 20176-8470
Mailing Address9815 Spring Ridge LnVienna, VA 22182-1453
Phone(703) 724-1195
Fax(703) 724-4495
Sole ProprietorNo
Enumeration DateSeptember 9, 2005
Last NPPES UpdateJanuary 10, 20244 updates tracked since enumeration
NPPES CertifiedJanuary 10, 2024
✔ NPI 1730173360 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians
Taxonomy Code208800000X
License✔ Licensed in VA · 0101038671
Definition
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.
19415 DEERFIELD AVENUE, SUITE 112, Leesburg, VA 20176
Open in Google Maps ↗

Other Identifiers 5

Medicaid1730173360VA
Medicaid7503300VA
Other340018240DC · Rr Medicare
Medicaid7503326VA
Other340017880VA · Rrmedicare

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

92.61/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality85.22
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 11

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. KYLE MATTHEW LESTER D.O.
Urology
19415 DEERFIELD AVENUE, SUITE 112
LEESBURG, VA 20176
Loudoun County (703) 724-1195
CHRISTINE NGOC BICH TRAN MD
Urology
19415 DEERFIELD AVENUE, SUITE 112
LEESBURG, VA 20176
Loudoun County (703) 724-1195
CHUCK G PRUNA D.O.
Urology
19415 DEERFIELD AVENUE, SUITE 112
LEESBURG, VA 20176
Loudoun County (703) 724-1195
AMANDA ELIZABETH SMART
Urology
19415 DEERFIELD AVENUE, SUITE 112
LEESBURG, VA 20176
Loudoun County (703) 724-1195
GREGORY S SCHENK MD
Urology
19415 DEERFIELD AVENUE, SUITE 112
LEESBURG, VA 20176
Loudoun County (703) 724-1195
JOANNA POTTERFIELD FNP
Nurse Practitioner (Family)
19415 DEERFIELD AVENUE, SUITE 112
LEESBURG, VA 20176
Loudoun County (703) 724-1195
LOUDOUN MEDICAL GROUP, PC
Urology
19415 DEERFIELD AVENUE, SUITE 112
LEESBURG, VA 20176
Loudoun County (703) 724-1195
JOHN JOSEPH PAHIRA MD
Urology
19415 DEERFIELD AVENUE, SUITE 112
LEESBURG, VA 20176
Loudoun County (703) 724-1195

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Walter O'brien's NPI number?

The NPI number for Walter O'brien is 1730173360. It was assigned to this individual provider in the NPPES registry on September 9, 2005.

Where is Walter O'brien located?

Walter O'brien practices at 19415 Deerfield Avenue, Suite 112, Leesburg, VA 20176. The listed phone number is (703) 724-1195.

What is Walter O'brien's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

When was this NPI record last updated?

The NPPES record for Walter O'brien was last updated on January 10, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.