Roy Leiboff, MD & George Bren, MD, PC
NPI 1700198900 · Cardiovascular Disease Physician · Washington, DC
Roy Leiboff, MD & George Bren, MD, PC is a Cardiovascular Disease Physician organization in Washington, DC (NPI 1700198900).
Provider details
- NPI number
- 1700198900
- Entity type
- Organization
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Parent organization
- Roy Leiboff, MD & George Bren, MD, PC
- Organization subpart
- Yes
- Authorized official
- Judy Sylvester, Director of Finance and Billing(301) 868-8024
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Roy Leiboff, MD & George Bren, MD, PC at Lakeside
Registry dates
- Enumerated
- 2010-07-06
- Last updated
- 2010-07-06
Frequently asked questions
- What is Roy Leiboff, MD & George Bren, MD, PC's NPI number?
- Roy Leiboff, MD & George Bren, MD, PC's National Provider Identifier (NPI) is 1700198900, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Roy Leiboff, MD & George Bren, MD, PC?
- Roy Leiboff, MD & George Bren, MD, PC is classified in the NPPES registry as Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Roy Leiboff, MD & George Bren, MD, PC located?
- Roy Leiboff, MD & George Bren, MD, PC's practice location on file with NPPES is 2440 M St Nw, Washington, DC 20037-1404.
- What is Roy Leiboff, MD & George Bren, MD, PC's phone number?
- The practice phone number listed in the NPPES registry for Roy Leiboff, MD & George Bren, MD, PC is (202) 785-4966.
- Who is the authorized official for Roy Leiboff, MD & George Bren, MD, PC?
- The authorized official listed on Roy Leiboff, MD & George Bren, MD, PC's NPPES record is Judy Sylvester, Director of Finance and Billing. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Roy Leiboff, MD & George Bren, MD, PC's NPI active?
- Yes — Roy Leiboff, MD & George Bren, MD, PC's NPI (1700198900) is active in the NPPES registry as of the last update on 2010-07-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.