Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mr. Michael Patrick Riordan, APRN

Individual provider Acute Care Nurse Practitioner · NPI 1508833278

Mr. Michael Patrick Riordan, APRN is a Nurse Practitioner in Spartanburg, South Carolina. Qualified in 2004, 22 years ago. Practices with Spartanburg Medical Center, a 1,067-clinician group and accepts Medicare assignment. Licensed in Connecticut and South Carolina.

Years since qualifying
22
Licensed in
CT, SC
In the registry since
2006
Specialties on file
2
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.

See every abbreviation used in this directory →

Practice location Address checks out

101 E Wood St
Spartanburg, SC 29303-3040
Phone: (864) 560-6654
Fax: (864) 560-7353
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence 3143 (SC)
Acute Care Nurse Practitioner Taxonomy 363LA2100X · Licence 003189 (CT)

Record details

NPI number1508833278
Entity typeIndividual (Type 1)
GenderMale
Credentials APRN
Sole proprietorNo
NPI enumeratedMarch 2, 2006
Last updated in NPPESMay 19, 2022
Certification dateDecember 10, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice Spartanburg Medical Center — 1067 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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