Leonard Khalil Kassis, M.D.

Internal Medicine

Leonard Khalil Kassis is an Internal Medicine specialist based in Rockville, MD with over 31 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

(301) 309-0016Rockville, MD
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

With over 31 years in internal medicine, Leonard Khalil Kassis, M.D. is a long-established internist in Rockville. A Jc Edwards School of Medicine, Marshall University graduate since 1995, he brings 31+ years of experience. CMS Medicare data shows his patients commonly have high cholesterol, hypertension, and arthritis.

1 of 874 Internal Medicine providers in MDSee all Internal Medicine in Rockville31+ years experienceNPI since 2008

Older · 6590dNPPES updated 2008-05-07 · verify NPI on CMS · Verify license at Maryland Board of Physicians

Contact & Location

Practice Location

350 Suite D Fortune Terr, Rockville, MD 20854-2972

Fax: (301) 309-0174
CMS Clinical Data

How Does This Doctor Compare?

Medicare Patients

171

Unique beneficiaries

Standard volume

Prescription Recipients

138

Patients prescribed

Prescriptions Written

1,147

Total claims

Total Medicare drug cost: $49k

Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.

Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages High Cholesterol, Hypertension, and Arthritis.

High Cholesterol
75%

Elevated cholesterol or triglycerides that increase heart disease risk

Hypertension
68%

High blood pressure — a leading risk factor for heart disease and stroke

Arthritis
36%

Joint inflammation causing pain, swelling, and stiffness

Ischemic Heart Disease
29%

Reduced blood flow to the heart muscle, commonly known as coronary artery disease

Diabetes
27%

A condition where the body cannot properly regulate blood sugar levels

Chronic Kidney Disease
20%

Gradual loss of kidney function over time, often linked to diabetes or hypertension

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

Industry Payment Transparency

$917 received from industry

40 transactions reported in 2024 ·Moderate tier

View on CMS Open Payments →

Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.

Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Leonard Khalil Kassis's NPI.

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Graduated medical school · 1995

    Jc Edwards School of Medicine, Marshall University

  2. 31 years in practice

    Senior practitioner

Internal MedicineAllopathic & Osteopathic Physicians

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Taxonomy: 207R00000X

Education & Training

Jc Edwards School of Medicine, Marshall University (Class of 1995)

Practice Footprint

Mailing address

350 Suite D Fortune Terrace, Rockville, MD 20854-2972

Differs from practice location

Virtual Internal Medicine Care With Leonard Khalil Kassis

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Leonard Khalil Kassis for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Rockville required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.

Frequently Asked Questions

Common questions about Leonard Khalil Kassis

NPI records show Dr. Kassis as active with telehealth listed in Rockville, MD. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (301) 309-0016.

Verified across 5 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.

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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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