M Mazen Jamal, MD, MPH - Medicare Gastroenterology in Corona, CA

M Mazen Jamal, MD, MPH is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Corona, California. He graduated from medical school in 1981 and has 43 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Mj Medical Group,inc. and his current practice location is 2097 Compton Ave Ste 103, Corona, California. You can reach out to his office (for appointments etc.) via phone at (951) 934-0505.

M Mazen Jamal is licensed to practice in California (license number A46078) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1003916727.

Contact Information

M Mazen Jamal, MD, MPH
2097 Compton Ave Ste 103,
Corona, CA 92881-7289
(951) 934-0505
(951) 444-7749

Map and Direction




Physician's Profile

Full NameM Mazen Jamal
GenderMale
SpecialityGastroenterology
Experience43 Years
Location2097 Compton Ave Ste 103, Corona, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • M Mazen Jamal graduated from medical school in 1981
  NPI Data:
  • NPI Number: 1003916727
  • Provider Enumeration Date: 09/23/2006
  • Last Update Date: 06/24/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 3274684436
  • Enrollment ID: I20090629000217

Medical Identifiers

Medical identifiers for M Mazen Jamal such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1003916727NPI-NPPES
WA46078AOtherCAPPIN

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 12734 (Nevada)Secondary
207RG0100XInternal Medicine - Gastroenterology A46078 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Parkview Community Hospital Medical CenterRiverside, CAHospital
Corona Regional Medical CenterCorona, CAHospital
Memorialcare Saddleback Medical CenterLaguna hills, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mj Medical Group,inc.80222343843

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. M Mazen Jamal allows following entities to bill medicare on his behalf.
Entity NameUc Regents
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760430847
PECOS PAC ID: 7416869516
Enrollment ID: O20031118000906
Entity NameMj Medical Group,inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1699194423
PECOS PAC ID: 8022234384
Enrollment ID: O20140722001124

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. M Mazen Jamal is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
M Mazen Jamal, MD, MPH
29 Praire,
Irvin, CA 92618

Ph: (949) 813-5115
M Mazen Jamal, MD, MPH
2097 Compton Ave Ste 103,
Corona, CA 92881-7289

Ph: (951) 934-0505

Reviews and Comments


Internal Medicine Doctors in Corona, CA

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Phone: 951-493-6805    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.