Dr Sisom Osia, MD - Medicare Internal Medicine in Upper Marlboro, MD

Dr Sisom Osia, MD is a medicare enrolled "Internal Medicine" physician in Upper Marlboro, Maryland. He graduated from medical school in 1979 and has 45 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 9628 Marlboro Pike, Upper Marlboro, Maryland. You can reach out to his office (for appointments etc.) via phone at (301) 599-7010.

Dr Sisom Osia is licensed to practice in Maryland (license number D0048158) 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 1154442366.

Contact Information

Dr Sisom Osia, MD
9628 Marlboro Pike,
Upper Marlboro, MD 20772
(301) 599-7010
(301) 599-1222

Map and Direction




Physician's Profile

Full NameDr Sisom Osia
GenderMale
SpecialityInternal Medicine
Experience45 Years
Location9628 Marlboro Pike, Upper Marlboro, Maryland
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 Sisom Osia graduated from medical school in 1979
  NPI Data:
  • NPI Number: 1154442366
  • Provider Enumeration Date: 04/03/2007
  • Last Update Date: 03/08/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 9335168889
  • Enrollment ID: I20051115000152

Medical Identifiers

Medical identifiers for Dr Sisom Osia such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1154442366NPI-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. 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 Sisom Osia allows following entities to bill medicare on his behalf.
Entity NameFrank & Grace Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1689621203
PECOS PAC ID: 0648299602
Enrollment ID: O20051118000298

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 Sisom Osia 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 Sisom Osia, MD
Po Box 2070,
Upper Marlboro, MD 20773-2070

Ph: (301) 599-7010
Dr Sisom Osia, MD
9628 Marlboro Pike,
Upper Marlboro, MD 20772

Ph: (301) 599-7010

Reviews and Comments


Internal Medicine Doctors in Upper Marlboro, MD

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Phone: 301-618-5647    Fax: 301-618-5504
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Phone: 301-618-5545    
Dr. Allison Regina Edwards,
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Phone: 301-952-8614    
Dr. Alexis Gorden Mccary, M.D.
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Phone: 301-618-5500    Fax: 301-618-5978
Dr. John Hyoungsub Shin, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 1221 Mercantile Ln, Upper Marlboro, MD 20774
Phone: 301-618-5620    

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.