Mariana Zelia Martinez, MD - Medicare Emergency Medicine in Los Angeles, CA

Mariana Zelia Martinez, MD is a medicare enrolled "Emergency Medicine" physician in Los Angeles, California. She went to University Of Southern California Keck School Of Medicine and graduated in 2016 and has 8 years of diverse experience with area of expertise as Emergency Medicine. She is a member of the group practice Usc Care Medical Group Inc and her current practice location is 1225 Wilshire Blvd, Los Angeles, California. You can reach out to her office (for appointments etc.) via phone at (213) 977-2121.

Mariana Zelia Martinez is licensed to practice in California (license number A150317) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1053765693.

Contact Information

Mariana Zelia Martinez, MD
1225 Wilshire Blvd,
Los Angeles, CA 90017-1901
(213) 977-2121
Not Available

Map and Direction




Physician's Profile

Full NameMariana Zelia Martinez
GenderFemale
SpecialityEmergency Medicine
Experience8 Years
Location1225 Wilshire Blvd, Los Angeles, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Mariana Zelia Martinez attended and graduated from University Of Southern California Keck School Of Medicine in 2016
  NPI Data:
  • NPI Number: 1053765693
  • Provider Enumeration Date: 04/20/2016
  • Last Update Date: 02/20/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 6002179975
  • Enrollment ID: I20191203002691

Medical Identifiers

Medical identifiers for Mariana Zelia Martinez such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1053765693NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine A150317 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Methodist Hospital Of Southern CaArcadia, CAHospital
Lac+usc Medical CenterLos angeles, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Usc Care Medical Group Inc04461577471128

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. Mariana Zelia Martinez allows following entities to bill medicare on her behalf.
Entity NameHmh Emergency Medical Group, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659383024
PECOS PAC ID: 7911800826
Enrollment ID: O20040128001215
Entity NameUsc Care Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902846306
PECOS PAC ID: 0446157747
Enrollment ID: O20050512000412
Entity NameChino Emergency Medical Associates, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013282029
PECOS PAC ID: 9638334410
Enrollment ID: O20120628000341

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. Mariana Zelia Martinez 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
Mariana Zelia Martinez, MD
Po Box 31309,
Los Angeles, CA 90031-0309

Ph: (213) 977-2121
Mariana Zelia Martinez, MD
1225 Wilshire Blvd,
Los Angeles, CA 90017-1901

Ph: (213) 977-2121

Reviews and Comments


Emergency Medicine Doctors in Los Angeles, CA

Dr. Tiffany Hackett, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 8700 Beverly Blvd., Los Angeles, CA 90048
Phone: 310-967-1884    Fax: 310-967-1744
Brennen J. Beatty, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 6041 Cadillac Ave, Los Angeles, CA 90034
Phone: 323-857-2000    
Matthew S. Berry, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 6041 Cadillac Ave, Los Angeles, CA 90034
Phone: 323-857-2000    
Phillip Gruber, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1200 N State St, Los Angeles, CA 90033
Phone: 323-226-6667    
Daniel Weingrow,
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 757 Westwood Plz, Los Angeles, CA 90095
Phone: 310-825-2111    
Brian Truong,
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 924 Westwood Blvd, Suite 300, Los Angeles, CA 90095
Phone: 310-794-0585    
Emily Michele Johnson, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1500 San Pablo St, Los Angeles, CA 90033
Phone: 323-442-9922    

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.