Dr Jeremy Demetri Williams, MD - Medicare Emergency Medicine in Monterey Park, CA

Dr Jeremy Demetri Williams, MD is a medicare enrolled "Emergency Medicine" physician in Monterey Park, California. He went to Wake Forest University School Of Medicine and graduated in 1998 and has 26 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Gem Medical Group Corporation and his current practice location is 525 N Garfield Ave, Monterey Park, California. You can reach out to his office (for appointments etc.) via phone at (626) 307-2129.

Dr Jeremy Demetri Williams is licensed to practice in California (license number A76509) 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 1023052230.

Contact Information

Dr Jeremy Demetri Williams, MD
525 N Garfield Ave,
Monterey Park, CA 91754-1202
(626) 307-2129
(626) 307-2056

Map and Direction




Physician's Profile

Full NameDr Jeremy Demetri Williams
GenderMale
SpecialityEmergency Medicine
Experience26 Years
Location525 N Garfield Ave, Monterey Park, 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 Jeremy Demetri Williams attended and graduated from Wake Forest University School Of Medicine in 1998
  NPI Data:
  • NPI Number: 1023052230
  • Provider Enumeration Date: 06/16/2006
  • Last Update Date: 06/11/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 2062319924
  • Enrollment ID: I20031218000660

Medical Identifiers

Medical identifiers for Dr Jeremy Demetri Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1023052230NPI-NPPES
00A765090MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine A76509 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Monterey Park HospitalMonterey park, CAHospital
Garfield Medical CenterMonterey park, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Gem Medical Group Corporation307298440052

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 Jeremy Demetri Williams allows following entities to bill medicare on his behalf.
Entity NameGolden West Emergency Medical Associates, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053680298
PECOS PAC ID: 8628098936
Enrollment ID: O20051201000582
Entity NameGem Medical Group Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1689364721
PECOS PAC ID: 3072984400
Enrollment ID: O20230124000274

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 Jeremy Demetri Williams 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 Jeremy Demetri Williams, MD
Po Box 660519,
Arcadia, CA 91066-0519

Ph: (626) 447-0296
Dr Jeremy Demetri Williams, MD
525 N Garfield Ave,
Monterey Park, CA 91754-1202

Ph: (626) 307-2129

Reviews and Comments


Emergency Medicine Doctors in Monterey Park, CA

Dr. Neil Katchman, D.O.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 900 S Atlantic Blvd, Monterey Park, CA 91754
Phone: 714-522-2001    Fax: 714-522-7503
Li Cui,
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 900 S Atlantic Blvd, Monterey Park, CA 91754
Phone: 323-788-6538    
Dr. Juan Carlos Jones, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 525 N Garfield Ave, Monterey Park, CA 91754
Phone: 626-307-2129    
Dr. Dolores De Cruz, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 525 N Garfield Ave, Monterey Park, CA 91754
Phone: 626-307-2129    Fax: 626-307-2056
Kimberly Marie Iwaki,
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 708 Barnum Way, Monterey Park, CA 91754
Phone: 626-390-1154    
Dr. Connie Chan, D.O.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 525 N Garfield Ave, Monterey Park, CA 91754
Phone: 626-307-2129    Fax: 626-307-2056

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.