Thomas A Gionis, MD - Medicare Emergency Medicine in Norwalk, CA

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Thomas A Gionis, MD is a medicare enrolled "Emergency Medicine" physician in Norwalk, California. His current practice location is 13100 Studebaker Rd, Norwalk, California. You can reach out to his office (for appointments etc.) via phone at (562) 864-6377.

Thomas A Gionis is licensed to practice in California (license number C39248) 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 1780638049.

Contact Information

Thomas A Gionis, MD
13100 Studebaker Rd,
Norwalk, CA 90650-2531
(562) 864-6377
Not Available

Map and Direction




Physician's Profile

Full NameThomas A Gionis
GenderMale
SpecialityEmergency Medicine
Location13100 Studebaker Rd, Norwalk, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1780638049
  • Provider Enumeration Date: 05/20/2006
  • Last Update Date: 11/27/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 0547157687
  • Enrollment ID: I20040302001422

Medical Identifiers

Medical identifiers for Thomas A Gionis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1780638049NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine C39248 (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. Thomas A Gionis allows following entities to bill medicare on his behalf.
Entity NameGlenn Medical Center, Inc
Entity TypePart B Supplier - Hospital Department(s)
Entity IdentifiersNPI Number: 1336187178
PECOS PAC ID: 3870505035
Enrollment ID: O20070705000269
Entity NameAmerican Specialty Physicians Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1568992923
PECOS PAC ID: 6103198460
Enrollment ID: O20170821003230

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. Thomas A Gionis 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
Thomas A Gionis, MD
Dept La 21575,
Pasadena, CA 91185-1575

Ph: (949) 263-8620		Thomas A Gionis, MD
13100 Studebaker Rd,
Norwalk, CA 90650-2531

Ph: (562) 864-6377

Reviews and Comments


Emergency Medicine Doctors in Norwalk, CA

Brian Christopher Payne, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 13100 Studebaker Rd, Norwalk, CA 90650
Phone: 562-864-6377    
Joseph Moza, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 11865 Firestone Blvd, Norwalk, CA 90650
Phone: 760-370-0209    
L. Lee Nelson, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 13100 Studebaker Rd, Norwalk, CA 90650
Phone: 213-761-7557    
Timothy Patrick Carman, M.D.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 13100 Studebaker Rd, Norwalk, CA 90650
Phone: 562-864-6377    
Jung-eun Jane Lim, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 13100 Studebaker Rd, Norwalk, CA 90650
Phone: 562-868-3751    
Mahmoud Nemazee, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 13100 Studebaker Rd, Norwalk, CA 90650
Phone: 562-864-6377    

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.