Michael Patrick Riordan, APRN
Acute Care Nurse Practitioner · Spartanburg, SC
Michael Patrick Riordan, APRN is an acute care nurse practitioner with a practice address in Spartanburg, South Carolina, and NPI 1508833278, issued on Mar 2, 2006. Check the license (South Carolina 3143, as entered in NPPES) with the South Carolina board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael Patrick Riordan
- Credential
- APRN
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License numbers
- 3143 SC
003189 CT
Self-reported in NPPES; status is on the state search - Practice location
- 101 E Wood St, Spartanburg, SC 29303
- Phone
- (864) 560-6654
- Enumerated
- Mar 2, 2006
- Record last updated
- May 19, 2022
- Fax
- (864) 560-7353
- Medicaid ID
- NP3036 SC
- Medicare enrollment
- Enrolled (PECOS I20100205000608); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 465 in South Carolina → Look up another NPI →
Also registered at 101 E Wood St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Martine Abouchabki, PHARMDPharmacist1952299356
- Samuel Adams, MDInternal Medicine Physician1568026607
- Samuel Adediran, M.D.,Hematology & Oncology Physician1811259096
Verify Michael Patrick Riordan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Carolina board licenses this profession
Search for license 3143Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 96.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $128.28
5 payments; by number, the most common kind was food and beverage; the largest payer was Becton, Dickinson and Company. The 10,984 providers of this specialty with any payment received $647.94 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- Spartanburg Medical CenterSpartanburg, SC · Acute Care Hospitals2 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Michael Patrick Riordan among 465 acute care nurse practitioner records in South Carolina
Michael Patrick Riordan, APRN is one of 465 acute care nurse practitioner records with a practice address in South Carolina. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 89% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2004 · median 2018 among the 344 with a school on file
- Record last updated2022 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Acute Care Nurse Practitioner providers in South Carolina
There are 465 acute care nurse practitioner records in South Carolina.
All 465 in South Carolina → Every provider in Spartanburg → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Amy Bowen, ACNPSpartanburg, SC 293031770611311
- Elizabeth Brannon, AGACNP-BCSpartanburg, SC 293031386387934
- Amy Bunch, APRNSpartanburg, SC 293031568179497
- Melanie Burnett, AGACNP-BCSpartanburg, SC 293031275992968
- Patricia Calladine McCallister, MSN, APRNSpartanburg, SC 293031073835146
- Angela Caudill, AGACNPSpartanburg, SC 293031184195380
- Amanda Faile, NPSpartanburg, SC 293031093773582
- Anne Gilkey, APRNSpartanburg, SC 293031124461991
Common questions
What is Michael Patrick Riordan, APRN's NPI number?
Michael Patrick Riordan, APRN's National Provider Identifier (NPI) is 1508833278, issued on Mar 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Patrick Riordan, APRN located?
The NPPES record lists a practice address at 101 E Wood St, Spartanburg, SC, 29303. Phone: (864) 560-6654. Providers update this record themselves, so call before visiting.
How can I verify Michael Patrick Riordan, APRN's license?
NPPES lists South Carolina license number 3143, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.
What is Michael Patrick Riordan, APRN's MIPS final score?
The 2023 MIPS final score is 96.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.