Mamdouh Riad Md PC in Hyannis, MA
This organization bills under NPI 1639279342, an organization record issued on Sep 23, 2006 with the primary taxonomy Specialist. Each clinician who works there has their own NPI and license.
Organization recordNPPES, Aug 2026
1639279342
- Legal name
- Mamdouh Riad Md PC
- Entity
- Type 2 · organization
- Primary taxonomy
- Specialist 174400000X
- Practice location
- 51 MAIN ST STE 2, Hyannis, MA 02601
- Phone
- 508-790-4568
- Mailing address
- Lincoln, NE
- Enumerated
- Sep 23, 2006
- Record updated
- Nov 28, 2025
- Authorized official
- Coo (title as filed)
3 clinicians CMS lists with Mamdouh Riad Md in Hyannis
- Mamdouh Riad, MDSpecialist1811920333
- Robert TerrellPsychiatric/Mental Health Nurse Practitioner1265198113
- Alexis Tressor, MDInternal Medicine Physician1982227468
Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.
Checking an organization
- Confirm the business with the Massachusetts secretary of state.
- Check the HHS-OIG exclusion list for the organization.
- Verify each clinician on their own record and the state license search.
All taxonomies on this record
- 174400000X Specialist
- 291U00000X Clinical Medical Laboratory
Common questions
Why is the mailing address in Nebraska?
The mailing address in the record (Lincoln, NE) is where the organization receives mail. Care is given at the practice location in Hyannis.
Is an organization NPI a license?
No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.
Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.