Dr Thomas Sean William Petit, MD - Medicare Internal Medicine in Norwalk, CA

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Dr Thomas Sean William Petit, MD is a medicare enrolled "Internal Medicine" physician in Norwalk, California. He graduated from medical school in 2010 and has 16 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Ajay G Meka Md Inc and his current practice location is 10937 Firestone Blvd, Norwalk, California. You can reach out to his office (for appointments etc.) via phone at (562) 262-2111.

Dr Thomas Sean William Petit is licensed to practice in Florida (license number ME144317) 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 1134423387.

Contact Information

Dr Thomas Sean William Petit, MD
10937 Firestone Blvd,
Norwalk, CA 90650-2242
(562) 262-2111
Not Available

Map and Direction




Physician's Profile

Full NameDr Thomas Sean William Petit
GenderMale
SpecialityInternal Medicine
Experience16 Years
Location10937 Firestone Blvd, Norwalk, 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 Thomas Sean William Petit graduated from medical school in 2010
  NPI Data:
  • NPI Number: 1134423387
  • Provider Enumeration Date: 01/03/2011
  • Last Update Date: 08/15/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 1557544764
  • Enrollment ID: I20240905003983

Medical Identifiers

Medical identifiers for Dr Thomas Sean William Petit such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1134423387NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine ME144317 (Florida)Primary
207R00000XInternal Medicine C196078 (California)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Starlite Home HealthNorthridge, CAHome health agency
L & A Home Health Care, IncLos angeles, CAHome health agency
Atlantic Memorial Healthcare CenterLong beach, CANursing home

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 Thomas Sean William Petit allows following entities to bill medicare on his behalf.
Entity NameAjay G Meka MD Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1932214657
PECOS PAC ID: 0244129963
Enrollment ID: O20040311001043
Entity NameFidelis Care Medical Corp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1275324758
PECOS PAC ID: 5294233466
Enrollment ID: O20250807004088

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 Thomas Sean William Petit 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 Thomas Sean William Petit, MD
10937 Firestone Blvd,
Norwalk, CA 90650-2242

Ph: (562) 262-2111		Dr Thomas Sean William Petit, MD
10937 Firestone Blvd,
Norwalk, CA 90650-2242

Ph: (562) 262-2111

Reviews and Comments


Internal Medicine Doctors in Norwalk, CA

Chi Minh Vu, MD
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Practice Location: 11401 S Bloomfield Ave, Norwalk, CA 90650
Phone: 562-863-7011    Fax: 562-864-4560
Nathapet Srinivasan, M.D.
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Practice Location: 13100 Studebaker Rd, Norwalk, CA 90650
Phone: 951-244-4147    Fax: 951-244-0747
Raymond Ceguerra Flores, MD
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Practice Location: 11401 South Bloomfield Avenue, Norwalk, CA 90650
Phone: 562-863-7011    Fax: 562-864-4560
Parvaneh Pourdihimi Zolnouni, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 11401 South Bloomfield Avenue, Norwalk, CA 90650
Phone: 562-863-7011    Fax: 562-864-4560
Hung Canh Phan, MD
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Practice Location: 11401 Bloomfield Ave, Norwalk, CA 90650
Phone: 562-863-7011    
Dr. Prode P Pascual, M.D
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 13222 Bloomfield Ave, Norwalk, CA 90650
Phone: 562-508-7123    Fax: 888-675-3950
Quy Vinh, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 11401 South Bloomfield Avenue, Norwalk, CA 90650
Phone: 562-863-7011    Fax: 562-864-4560

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.