Selwyn E. Mahon, M.D.
Individual provider Active NPI Emergency Medicine Physician · Tamuning, GU
NPI 1992816169 · NPPES record last updated Aug 13, 2026
Key facts
- NPI
- 1992816169
- Entity type
- Individual (NPI type 1)
- Primary specialty
- Emergency Medicine Physician 207P00000X
- License
- 1119 (VI)
- Practice address
- 850 Gov. Carlos Camacho Road
Guam Memorial Hospital Authority
Tamuning, GU 96913 - Phone
- (671) 647-2350
- NPI assigned
- Aug 31, 2006
- Sex
- Male
- Sole proprietor
- No
Organizations & group practices 13
Hospital & facility affiliations 1
Medicare Care Compare profile
- Specialty
- Emergency Medicine
- Education
- Howard University College of Medicine, 1990
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- East Harbor Partners PC
Practice addresses (Care Compare)
3001 Park Ctr Dr
Apt 611
Alexandria, VA 22302-1442
Phone (857) 575-5831
Hospital & facility affiliations
- University of MD Shore Medical Ctr at Chestertown
Medicare participation
- Medicare fee-for-service enrollment
- Enrolled (5 enrollments) in MD, VI, MA, RI, DC
- Eligible to order & refer
- Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: Yes
Medicare enrollment records
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20040615000863 | MD | Practitioner - Emergency Medicine | 4385628692 | Reassigns benefits to 3 organizations |
| I20050315000712 | VI | Practitioner - Emergency Medicine | 4385628692 | Reassigns benefits to 1 organization |
| I20140423000161 | MA | Practitioner - Emergency Medicine | 4385628692 | Reassigns benefits to 3 organizations |
| I20141114001744 | RI | Practitioner - Emergency Medicine | 4385628692 | Reassigns benefits to 2 organizations |
| I20260214000022 | DC | Practitioner - Emergency Medicine | 4385628692 | Reassigns benefits to 1 organization |
National Provider Directory
- Medicare enrollment (NPD)
- Yes
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 1119 | VI | MD | Emergency Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Emergency Medicine Associates P.a., P.C. | Current |
Accepting new patients | |
| Emergency Associates of Woonsocket LLC | Emergency Medicine | Current |
Accepting new patients |
| Kent Queen Anne Pathology | Current |
Accepting new patients | |
| Associated Physicians of Harvard Medical Faculty Physicians at Beth Is | Current |
Accepting new patients | |
| Emergency Medicine Associates P.a., P.C. | Emergency Medicine | Current | Accepting new patients |
| Associated Physicians of Harvard Medical Faculty Physicians at Beth Is | Current |
Accepting new patients | |
| Emergency Medicine Associates, PA | Emergency Medicine | Current |
Accepting new patients |
| Chester River Hospital Center | Current | Accepting new patients | |
| Chester River Health Center | Current |
Accepting new patients | |
| East Harbor Partners, P.C. | Current |
Accepting new patients | |
| Memn Hospitalists, LLC | Emergency Medicine | Past | Accepting new patients |
| Hospital Physician Services, LLLP | Past | Accepting new patients |
Locations
199 Reedsdale Rd
Milton, MA 02186
Phone (617) 313-1000
101 Page St
New Bedford, MA 02740
Phone (508) 961-5425
660 McHenry Rd
Aberdeen, MD 21001
Phone (443) 643-1500
100 Brown St
Chestertown, MD 21620
Phone (410) 778-3300
100 Hospital Rd
Prnc Frederck, MD 20678
Phone (410) 414-4791
200 Memorial Ave
Westminster, MD 21157
Phone (410) 848-3000
66 W Gilbert St
Tinton Falls, NJ 07701
Phone (732) 212-0051
700 Narragansett Park Dr
Ste 100
Pawtucket, RI 02861
Phone (203) 626-5581
115 Cass Ave
Woonsocket, RI 02895
Phone (401) 356-1701
Interoperability endpoints
- smahon971301@direct.umm.edu
Specialties & licenses
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Emergency Medicine Physician | 207P00000X | 1119 | VI | Yes |
Addresses
Primary practice location
850 Gov. Carlos Camacho Road
Guam Memorial Hospital Authority
Tamuning, GU 96913
Mailing address
6603 Evanston St
Forestville, MD 20747-4154
Phone (301) 633-8820
Other practice location 1
115 Cass Ave
Woonsocket, RI 02895-4705
Phone (401) 469-4100
Other providers in Tamuning, GU
- Jean M. Macalinao
- Barbara C Mafnas
- Marilyn Zamora Magbitang
- Edgar M. Magcalas
- Rachel Ivy Grace Magistre-Legend
- Janice Malilay
- Jehn Reiko Quililan Mallari
- Jonne Allen D Mallari
- Unknown Mallikarjunappa
- Caressa Elisabeth Maluwelmeng
All providers in Tamuning, GU · Emergency Medicine Physician in Guam
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Record last updated by the provider on Aug 13, 2026. Information in NPPES is self-reported and not verified by CMS.
- NUCC Health Care Provider Taxonomy: specialty names.
- Medicare Fee-For-Service Public Provider Enrollment (CMS/PECOS): enrollments, PAC IDs and benefit reassignments.
- Order and Referring (CMS).
- Medicare Care Compare provider data (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.