Stephen Thomas, MD - Medicare Emergency Medicine in Oceanside, CA

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Stephen Thomas, MD is a medicare enrolled "Emergency Medicine" physician in Oceanside, California. He went to New York Medical College and graduated in 2000 and has 24 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Steward Emergency Physicians Inc, Merrimack Valley Emergency Associates, Inc. and his current practice location is Naval Hospital Camp Pendleton, Emergency Department, Oceanside, California. You can reach out to his office (for appointments etc.) via phone at (619) 865-1724.

Stephen Thomas is licensed to practice in Connecticut (license number 62040) 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 1972575330.

Contact Information

Stephen Thomas, MD
Naval Hospital Camp Pendleton, Emergency Department,
Oceanside, CA 92055-5191
(619) 865-1724
Not Available

Map and Direction




Physician's Profile

Full NameStephen Thomas
GenderMale
SpecialityEmergency Medicine
Experience24 Years
LocationNaval Hospital Camp Pendleton, Oceanside, 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:
  • Stephen Thomas attended and graduated from New York Medical College in 2000
  NPI Data:
  • NPI Number: 1972575330
  • Provider Enumeration Date: 02/01/2006
  • Last Update Date: 10/26/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 5991880320
  • Enrollment ID: I20090623000194

Medical Identifiers

Medical identifiers for Stephen Thomas such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1972575330NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine A77076 (California)Secondary
207P00000XEmergency Medicine 239025 (Massachusetts)Secondary
207P00000XEmergency Medicine 62040 (Connecticut)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Lowell General HospitalLowell, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Steward Emergency Physicians Inc0244401404148
Merrimack Valley Emergency Associates, Inc.206250837731

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. Stephen Thomas allows following entities to bill medicare on his behalf.
Entity NameSouth Shore Hospital Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1134227606
PECOS PAC ID: 4385546217
Enrollment ID: O20040122000304
Entity NameSignature Healthcare Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1508804949
PECOS PAC ID: 7719876267
Enrollment ID: O20040312000372
Entity NameBrockton Hospital, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1063431286
PECOS PAC ID: 4082504733
Enrollment ID: O20040317000871
Entity NameMerrimack Valley Emergency Associates, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821280959
PECOS PAC ID: 2062508377
Enrollment ID: O20071018000235
Entity NameSteward Emergency Physicians Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1780971275
PECOS PAC ID: 0244401404
Enrollment ID: O20110919000768

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. Stephen 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
Stephen Thomas, MD
2800 Main St,
Bridgeport, CT 06606-4201

Ph: (475) 210-5604		Stephen Thomas, MD
Naval Hospital Camp Pendleton, Emergency Department,
Oceanside, CA 92055-5191

Ph: (619) 865-1724

Reviews and Comments


Emergency Medicine Doctors in Oceanside, CA

Miss Kelly Carol Peng, D.O
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 200 Mercy Circle, Emergency Medicine Department, Oceanside, CA 92055
Phone: 760-719-3994    
Dr. Brendon Leif Gelford,
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1321 Paseo Hermosa, Oceanside, CA 92056
Phone: 760-622-3722    
Dr. W. Byron Mitchell Jr., M.D.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 4002 Vista Way, Oceanside, CA 92056
Phone: 760-940-3505    
Dr. Michael H. Alaynick, M.D.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 4002 Vista Way, Oceanside, CA 92056
Phone: 760-940-3808    
Dr. Edward S. Rotunda, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4002 Vista Way, Oceanside, CA 92056
Phone: 760-940-3808    
Dr. Tuan D. Nguyen, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4002 Vista Way, Oceanside, CA 92056
Phone: 760-940-3808    
Dr. Pengta Anthony Chiang, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4002 Vista Way, Emergency Department, Oceanside, CA 92056
Phone: 760-439-1963    Fax: 760-268-0931

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.