Sisom Osia, M.d./ Gateway Medical Center - Medicare Primary Care in Upper Marlboro, MD

Sisom Osia, M.d./ Gateway Medical Center is a medicare enrolled primary clinic (Internal Medicine) in Upper Marlboro, Maryland. The current practice location for Sisom Osia, M.d./ Gateway Medical Center is 9628 Marlboro Pike, Upper Marlboro, Maryland. For appointments, you can reach them via phone at (301) 599-7010. The mailing address for Sisom Osia, M.d./ Gateway Medical Center is Po Box 2070, Upper Marlboro, Maryland and phone number is (301) 599-7010.

Sisom Osia, M.d./ Gateway Medical Center is licensed to practice in Maryland (license number D0048158). The clinic also participates in the medicare program and its NPI number is 1689621203. This medical practice accepts medicare insurance (which means this clinic accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance). However, please confirm if they accept your insurance at (301) 599-7010.

Contact Information

Sisom Osia, M.d./ Gateway Medical Center
9628 Marlboro Pike
Upper Marlboro
MD 20772
(301) 599-7010
(301) 599-1222

Map and Direction


Primary Care Clinic Profile

Full NameSisom Osia, M.d./ Gateway Medical Center
SpecialityInternal Medicine
Location9628 Marlboro Pike, Upper Marlboro, Maryland
Authorized Official Name and PositionSisom Osia (PRESIDENT)
Authorized Official Contact3015997010
Accepts Medicare InsuranceYes. This clinic participates in medicare program and accept medicare insurance.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Sisom Osia, M.d./ Gateway Medical Center
Po Box 2070
Upper Marlboro
MD 20773-2070

Ph: (301) 599-7010
Sisom Osia, M.d./ Gateway Medical Center
9628 Marlboro Pike
Upper Marlboro
MD 20772

Ph: (301) 599-7010

NPI Details:

NPI Number1689621203
Provider Enumeration Date05/28/2006
Last Update Date03/08/2010

Medicare PECOS Information:

Medicare PECOS PAC ID0648299602
Medicare Enrollment IDO20051118000298

Medical Identifiers

Medical identifiers for Sisom Osia, M.d./ Gateway Medical Center such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1689621203NPI-NPPES
051701101MedicaidMD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine D0048158 (Maryland)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Sisom Osia, M.d./ Gateway Medical Center acts as a billing entity for following providers:
Provider NameSisom Osia
Provider TypePractitioner - Internal Medicine
Provider IdentifiersNPI Number: 1154442366
PECOS PAC ID: 9335168889
Enrollment ID: I20051115000152

Reviews and Comments


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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.