M. Mazen Jamal, M.D., M.P.H.
Gastroenterology Internal Medicine
M. Mazen Jamal is a Gastroenterology Internal Medicine specialist based in Corona, CA with over 45 years of clinical experience. Offers virtual telehealth visits.
With over 45 years in internal medicine, M. Mazen Jamal, M.D., M.P.H. is a long-established gastroenterologist in Corona. He has been practicing since 2006 — over 45 years. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and diabetes.
At a glance
- Uses generic medications more than 84% of reporting doctors in California
- Virtual visits available — no app or travel required
Older · 1794dNPPES updated 2021-06-24 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
2097 Compton Ave Ste 103, Corona, CA 92881-7289
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 Hypertension, High Cholesterol, and Diabetes.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+19%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↑ More patients than average (+1%) — a focus area for this doctor
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+16%) — a focus area for this doctor
Conditions affecting emotional state, including depression and bipolar disorder
The heart cannot pump blood efficiently enough to meet the body's needs
US avg: 22.5%↑ More patients than average (+16%) — a focus area for this doctor
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%↑ More patients than average (+5%) — a focus area for this doctor
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Board certified · Jun 23, 2021
Self-reported via NPPES
45 years in practice
Senior practitioner
Gastroenterologists diagnose and treat digestive system disorders including GERD, irritable bowel syndrome (IBS), inflammatory bowel disease (Crohn's, ulcerative colitis), liver disease, pancreatitis, and colon polyps. They perform endoscopies and colonoscopies.
Taxonomy: 207RG0100X
Mailing address
29 Praire, Irvin, CA 92618
Differs from practice location
Virtual Internal Medicine Care With M. Mazen Jamal
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with M. Mazen Jamal for blood pressure monitoring, cholesterol management, diabetes check-ins — no travel to Corona required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.
Frequently Asked Questions
Common questions about M. Mazen Jamal
Dr. Jamal is listed as active in the NPI registry with telehealth listed in Corona, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (951) 934-0505.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · 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.
Contact M. Mazen Jamal
Practice Location
2097 Compton Ave Ste 103, Corona, CA 92881-7289
Mailing Address
29 Praire, Irvin, CA 92618
This is a provider directory. Contact the office directly to schedule appointments.
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