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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. ROGER LEONARD
NPI 1720020936
Internal Medicine - Cardiovascular Disease in Olney, MD

Active since June 12, 2006
18101 PRINCE PHILIP DR, OLNEY, MD 20832(301) 774-8918 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Roger Leonard NPPES

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

DR. ROGER LEONARD (NPI 1720020936) is an individual cardiovascular disease provider in Olney, Maryland, licensed in Maryland (D0028791) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1720020936
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameDR. ROGER LEONARD
Location Address18101 PRINCE PHILIP DROlney, MD 20832-1514
Mailing Address18101 Prince Philip DrOlney, MD 20832-1514 · (301) 774-8918
Phone(301) 774-8918
Sole ProprietorNo
Enumeration DateJune 12, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1720020936 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in MD · D0028791
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
18101 PRINCE PHILIP DR, Olney, MD 20832
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Other Providers at the Same Location NPPES 20

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

BARBARA W. DAWSON CRNA
Nurse Anesthetist, Certified Registered
18101 PRINCE PHILIP DR
OLNEY, MD 20832
Montgomery County (301) 774-8610
MEDSTAR HEALTH ANESTHESIA SERVICES E, LLC
Anesthesiology
18101 PRINCE PHILIP DR
OLNEY, MD 20832
Montgomery County (301) 774-8882
AMANDA RAUDA TELLAWI MD
Obstetrics & Gynecology
18101 PRINCE PHILIP DR
OLNEY, MD 20832
Montgomery County (301) 570-7424
ANNA JAROMCZYK PRALL CRNA
Nurse Anesthetist, Certified Registered
18101 PRINCE PHILIP DR
OLNEY, MD 20832
Montgomery County (919) 323-6465
LAURIE HALL MS, RDN, LDN
Dietitian, Registered
18101 PRINCE PHILIP DR
OLNEY, MD 20832
Montgomery County (301) 774-8637
KUNWARDEEP SINGH SOHAL M.D.
Internal Medicine (Gastroenterology)
18101 PRINCE PHILIP DR
OLNEY, MD 20832
Montgomery County (301) 774-8882
PAUL ANDREW BURKE PA-C
Physician Assistant
18101 PRINCE PHILIP DR, MONTGOMERY GENERAL HOSPITAL
OLNEY, MD 20832
Montgomery County (301) 774-8900
VIVIANA ANDREA REYES N.P
Nurse Practitioner (Family)
18101 PRINCE PHILIP DR
OLNEY, MD 20832
Montgomery County (301) 774-8882

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 Roger Leonard's NPI number?

The NPI number for Roger Leonard is 1720020936. It was assigned to this individual provider in the NPPES registry on June 12, 2006.

Where is Roger Leonard located?

Roger Leonard practices at 18101 Prince Philip Dr, Olney, MD 20832. The listed phone number is (301) 774-8918.

What is Roger Leonard's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

When was this NPI record last updated?

The NPPES record for Roger Leonard was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.