Dr Mazer Ricky Ally, MD - Medicare Gastroenterology in Oceanside, CA

Dr Mazer Ricky Ally, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Oceanside, California. He went to George Washington University School Of Medicine and graduated in 2006 and has 18 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Scripps Health and his current practice location is 2205 Vista Way Ste 340, Oceanside, California. You can reach out to his office (for appointments etc.) via phone at (760) 704-5870.

Dr Mazer Ricky Ally is licensed to practice in California (license number A146924) 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 1902018666.

Contact Information

Dr Mazer Ricky Ally, MD
2205 Vista Way Ste 340,
Oceanside, CA 92054-5661
(760) 704-5870
(760) 404-1821

Map and Direction




Physician's Profile

Full NameDr Mazer Ricky Ally
GenderMale
SpecialityGastroenterology
Experience18 Years
Location2205 Vista Way Ste 340, Oceanside, 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:
  • Dr Mazer Ricky Ally attended and graduated from George Washington University School Of Medicine in 2006
  NPI Data:
  • NPI Number: 1902018666
  • Provider Enumeration Date: 05/04/2007
  • Last Update Date: 10/13/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 8729226279
  • Enrollment ID: I20170215001341

Medical Identifiers

Medical identifiers for Dr Mazer Ricky Ally such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1902018666NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology A146924 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Scripps Memorial Hospital La JollaLa jolla, CAHospital
Scripps Memorial Hospital - EncinitasEncinitas, CAHospital
Scripps Green HospitalLa jolla, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Scripps Health92340338531362

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. Dr Mazer Ricky Ally allows following entities to bill medicare on his behalf.
Entity NameScripps Health
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881636108
PECOS PAC ID: 9234033853
Enrollment ID: O20031124000822
Entity NameUnited Medical Doctors
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1770559981
PECOS PAC ID: 2961305651
Enrollment ID: O20040129001069

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. Dr Mazer Ricky Ally 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
Dr Mazer Ricky Ally, MD
10790 Rancho Bernardo Rd,
San Diego, CA 92127-5705

Ph: (760) 704-5870
Dr Mazer Ricky Ally, MD
2205 Vista Way Ste 340,
Oceanside, CA 92054-5661

Ph: (760) 704-5870

Reviews and Comments


Internal Medicine Doctors in Oceanside, CA

Javaid Ahmed Shad, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 3923 Waring Rd Ste A, Oceanside, CA 92056
Phone: 760-724-8782    Fax: 760-842-7801
Dr. Mark K Yamanaka, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 3907 Waring Rd Ste 2, Oceanside, CA 92056
Phone: 760-941-0221    Fax: 760-941-0905
David G. Antoun, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 4002 Vista Way, Oceanside, CA 92056
Phone: 760-724-8411    
Pratan Vathesatogkit, M.D.
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 3231 Waring Ct, Suite D, Oceanside, CA 92056
Phone: 760-630-4833    Fax: 760-758-1980
Ian B Butler, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 3231 Waring Ct Ste D, Oceanside, CA 92056
Phone: 760-941-0221    Fax: 760-941-0905
Dr. Ronald Hansel Main, M.D.
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 3460 Marron Rd Ste 103-477, Oceanside, CA 92056
Phone: 760-681-8160    
Dr. Christopher Davis, MD
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 200 Mercy Circle, Oceanside, CA 92055
Phone: 760-725-7410    

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.