Dr Selwyn E Mahon, MD - Medicare Emergency Medicine in Tamuning, GU

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Dr Selwyn E Mahon, MD is a medicare enrolled "Emergency Medicine" physician in Tamuning, Guam. His current practice location is 850 Gov. Carlos Camacho Road, Guam Memorial Hospital Authority, Tamuning, Guam. You can reach out to his office (for appointments etc.) via phone at (671) 647-2350.

Dr Selwyn E Mahon is licensed to practice in Virgin Island (license number 1119) 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 1992816169.

Contact Information

Dr Selwyn E Mahon, MD
850 Gov. Carlos Camacho Road, Guam Memorial Hospital Authority,
Tamuning, GU 96913
(671) 647-2350
Not Available

Map and Direction




Physician's Profile

Full NameDr Selwyn E Mahon
GenderMale
SpecialityEmergency Medicine
Location850 Gov. Carlos Camacho Road, Tamuning, Guam
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1992816169
  • Provider Enumeration Date: 08/31/2006
  • Last Update Date: 03/23/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 4385628692
  • Enrollment ID: I20040615000863

Medical Identifiers

Medical identifiers for Dr Selwyn E Mahon such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1992816169NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 1119 (Virgin Island)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 Selwyn E Mahon allows following entities to bill medicare on his behalf.
Entity NameChester River Hospital Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1679536809
PECOS PAC ID: 0749220671
Enrollment ID: O20050510000504
Entity NameUpper Chesapeake Emergency Medicine Physicians Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285854026
PECOS PAC ID: 2860587342
Enrollment ID: O20070927001103

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 Selwyn E Mahon 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 Selwyn E Mahon, MD
6603 Evanston St.,
Forestville, MD 20747

Ph: (301) 633-8820		Dr Selwyn E Mahon, MD
850 Gov. Carlos Camacho Road, Guam Memorial Hospital Authority,
Tamuning, GU 96913

Ph: (671) 647-2350

Reviews and Comments


Emergency Medicine Doctors in Tamuning, GU

Robert Jerome Michaud,
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1270 N Marine Dr Ste 101, Pmb 537, Tamuning, GU 96913
Phone: 619-512-3406    
Angelito G Santos, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 548 S Marine Corps Dr, Tamuning, GU 96913
Phone: 671-646-5825    Fax: 671-646-0556
Dr. Eric Mark Greenfield, D.O
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 850 Gov Carlos G Camacho Rd, Tamuning, GU 96913
Phone: 671-988-7814    
Emily Raetz,
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1 Farenholt Ave, Tamuning, GU 96913
Phone: 671-344-9232    

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.