Dr Gregory S Thomas, MD - Medicare Internal Medicine in Long Beach, CA

Dr Gregory S Thomas, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Long Beach, California. His current practice location is 2865 Atlantic Ave, Suite 104, Long Beach, California. You can reach out to his office (for appointments etc.) via phone at (562) 933-1820.

Dr Gregory S Thomas is licensed to practice in California (license number G49797) 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 1407834146.

Contact Information

Dr Gregory S Thomas, MD
2865 Atlantic Ave, Suite 104,
Long Beach, CA 90806-1740
(562) 933-1820
(562) 933-1819

Map and Direction




Physician's Profile

Full NameDr Gregory S Thomas
GenderMale
SpecialityInternal Medicine - Cardiovascular Disease
Location2865 Atlantic Ave, Long Beach, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1407834146
  • Provider Enumeration Date: 01/04/2006
  • Last Update Date: 08/27/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 4688770241
  • Enrollment ID: I20070702000356

Medical Identifiers

Medical identifiers for Dr Gregory S Thomas such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1407834146NPI-NPPES
00G497970MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease G49797 (California)Primary
207UN0901XNuclear Medicine - Nuclear Cardiology G49797 (California)Secondary

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 Gregory S Thomas allows following entities to bill medicare on his behalf.
Entity NameGregory S Thomas Md Mph Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1164769535
PECOS PAC ID: 1153557830
Enrollment ID: O20131203000299

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 Gregory S Thomas 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 Gregory S Thomas, MD
2865 Atlantic Ave, Suite 104,
Long Beach, CA 90806-1740

Ph: (562) 933-1820
Dr Gregory S Thomas, MD
2865 Atlantic Ave, Suite 104,
Long Beach, CA 90806-1740

Ph: (562) 933-1820

Reviews and Comments


Internal Medicine Doctors in Long Beach, CA

Sohrab Tanavoli, D.O
Cardiovascular Disease
Medicare: Medicare Enrolled
Practice Location: 5901 E 7th St, Long Beach, CA 90822
Phone: 562-826-8000    
Ngoc-tram Gia Tran, D.O
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 2888 Long Beach Blvd Ste 235, Long Beach, CA 90806
Phone: 562-803-2486    
Michael A Raya, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 2600 Redondo Ave, Long Beach, CA 90806
Phone: 562-988-7000    
Meggan Chappell,
Cardiovascular Disease
Medicare: Medicare Enrolled
Practice Location: 3833 Worsham Ave Ste 300, Long Beach, CA 90808
Phone: 562-595-5421    Fax: 562-426-2862
Dr. Maurice A Bell, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 4100 Long Beach Blvd, Suite 200, Long Beach, CA 90807
Phone: 562-981-2355    Fax: 562-981-2920
Katya C Corado, M.D.
Cardiovascular Disease
Medicare: Medicare Enrolled
Practice Location: 1333 Chestnut Ave, Long Beach, CA 90813
Phone: 562-599-8601    Fax: 562-218-0853
Dr. Diane L. Johnson, M.D.
Cardiovascular Disease
Medicare: Not Enrolled in Medicare
Practice Location: 65 Pine Ave, #19, Long Beach, CA 90802
Phone: 714-402-4685    Fax: 562-856-0389

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.