Dr Joseph Charles Mares, MD - Medicare Pediatrics in Downey, CA

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Dr Joseph Charles Mares, MD is a medicare enrolled "Pediatrics" physician in Downey, California. His current practice location is 9449 Imperial Hwy Ste 332, Downey, California. You can reach out to his office (for appointments etc.) via phone at (562) 657-2141.

Dr Joseph Charles Mares is licensed to practice in California (license number A106615) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1316186323.

Contact Information

Dr Joseph Charles Mares, MD
9449 Imperial Hwy Ste 332,
Downey, CA 90242-2814
(562) 657-2141
Not Available

Map and Direction




Physician's Profile

Full NameDr Joseph Charles Mares
GenderMale
SpecialityPediatrics
Location9449 Imperial Hwy Ste 332, Downey, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1316186323
  • Provider Enumeration Date: 02/13/2009
  • Last Update Date: 12/15/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 4688801467
  • Enrollment ID: I20131227000136

Medical Identifiers

Medical identifiers for Dr Joseph Charles Mares such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1316186323NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208000000XPediatrics A106615 (California)Primary

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 Joseph Charles Mares allows following entities to bill medicare on his behalf.
Entity NameSouthern California Permanente Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1770515280
PECOS PAC ID: 6002729175
Enrollment ID: O20031110000678
Entity NameSouthern California Permanente Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1316979834
PECOS PAC ID: 6002729175
Enrollment ID: O20040126000823

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 Joseph Charles Mares 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 Joseph Charles Mares, MD
9449 Imperial Hwy Ste 332,
Downey, CA 90242-2814

Ph: (562) 657-2141		Dr Joseph Charles Mares, MD
9449 Imperial Hwy Ste 332,
Downey, CA 90242-2814

Ph: (562) 657-2141

Reviews and Comments


Pediatrics Doctors in Downey, CA

Irene Gilgoff, M.D.
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 7601 Imperial Hwy, Downey, CA 90242
Phone: 562-803-0124    Fax: 562-803-5569
Ferdinand Jamil Shamiyeh, M.D.
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 11525 Brookshire Ave Ste 302, Downey, CA 90241
Phone: 562-904-2821    Fax: 562-904-2826
Dr. Kim Chi Thanh Bui, M.D.
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 9333 Imperial Hwy, Downey, CA 90242
Phone: 562-657-7550    
Nicole Cervantes, M.D.
Pediatrics
Medicare: Accepting Medicare Assignments
Practice Location: 8530 Firestone Blvd, Downey, CA 90241
Phone: 562-867-7999    
William Boelter, M.D.
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 7601 Imperial Hwy, Downey, CA 90242
Phone: 562-803-0124    Fax: 562-803-0124
Daniel Chong Lee, MD
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 9333 Imperial Hwy, Downey, CA 90242
Phone: 562-657-7550    
Danielle Ilana Schneider Williams, MD
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 9449 Imperial Hwy, Suite 307, Downey, CA 90242
Phone: 562-657-2751    

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.

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