Michael Patrick Riordan, APRN
- Medicare patients, 2024
- 87
- MIPS score, 2024
- 95
- Hospital affiliations
- 2
- Industry payments
- $39
- Medical group
- 1
- Practice address
- 101 E Wood St, Spartanburg, SC 29303
- Practice phone
- Call (864) 560-6554
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Michael Riordan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Michael Patrick Riordan is an acute care nurse practitioner in Spartanburg, South Carolina
Michael Riordan practices at Spartanburg Medical Center in Spartanburg, South Carolina, part of Spartanburg Regional Healthcare System.
Michael Riordan's NPI, 1508833278, was assigned on March 2, 2006. Michael Riordan holds South Carolina license 3143.
- NPI
- 1508833278NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7810934676
- NPI enumeration date
- March 2, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (864) 560-6554
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Michael Patrick Riordan practices at Spartanburg Medical Center in Spartanburg, South Carolina
Michael Riordan's primary practice is Spartanburg Medical Center, at 101 E Wood St, Spartanburg, SC 29303 in Spartanburg County. The practice phone is (864) 560-6554.
- Spartanburg Medical Center101 E Wood St, Spartanburg, SC 29303 · Spartanburg CountyPhone(864) 560-6554
Source: Dmand AI Affiliation Data
Michael Patrick Riordan is affiliated with 2 sites of care and 1 medical group
Michael Riordan's primary practice is Spartanburg Medical Center in Spartanburg, South Carolina, part of Spartanburg Regional Healthcare System. Michael Riordan is also affiliated with Cherokee Medical Center. The medical group on file is Medical Group of the Carolinas - Family Medicine - Converse Heights.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Michael Patrick Riordan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Michael Riordan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Spartanburg Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Spartanburg Regional Healthcare System and 6.2K+ hospitals, with verified contacts in the same login.
Michael Patrick Riordan is one of 398 acute care nurse practitioners in South Carolina
Acute care is Michael Riordan's primary specialty in the NPI Registry, under taxonomy code 363LA2100X. Dmand AI has Michael Riordan's licenses on file in 2 states: South Carolina and Connecticut.
Specialties and state licenses
- Acute care nurse practitioner, South CarolinaPrimary
- Connecticut license
Acute care nurse practitioners near Michael Riordan
Counts of acute care nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Michael Patrick Riordan treated 87 Medicare patients in 2024, average age 73
CMS counts 87 Medicare patients who saw Michael Riordan in 2024. The largest group is 65 to 74, with 33 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 29% are also on Medicaid. Their average risk score is 2.66, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Michael Riordan's median patient age at 69, with 53% women.
Michael Riordan's Medicare patients by age, 2024
Michael Riordan's Medicare patients by sex, 2024
- Women4248%
- Men4552%
Chronic conditions among Michael Riordan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease64%
- Diabetes55%
- Arthritis53%
- Heart failure51%
- Anxiety45%
- Ischemic heart disease45%
Share of Medicare patients with each condition. A patient can have several.
Michael Riordan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Michael Patrick Riordan scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Michael Riordan for performance year 2024, reported through an alternative payment model (APM). Michael Riordan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Michael Riordan's MIPS scores, performance year 2024
- 95of 100Final score
- 89.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
Michael Patrick Riordan received $39 in industry payments in 2025
CMS Open Payments shows 2 general payments to Michael Riordan from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $39.
Companies that paid Michael Riordan the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Michael Patrick Riordan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Michael Patrick Riordan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Michael Patrick Riordan's NPI number?
Michael Patrick Riordan's NPI number is 1508833278. It was assigned on March 2, 2006, and it is active in the NPI Registry.
What does Michael Patrick Riordan specialize in?
Michael Patrick Riordan is an acute care nurse practitioner in Spartanburg, South Carolina. The primary specialty in the NPI Registry is Acute Care Nurse Practitioner (taxonomy code 363LA2100X).
Where does Michael Patrick Riordan practice?
Michael Riordan practices at 101 E Wood St, Spartanburg, SC 29303. Michael Riordan's primary practice is Spartanburg Medical Center in Spartanburg, South Carolina, part of Spartanburg Regional Healthcare System.
What is Michael Patrick Riordan's office phone number?
The practice phone on file for Michael Riordan is (864) 560-6554.
What is Michael Patrick Riordan's medical license number?
Michael Riordan holds South Carolina license 3143, one of the licenses on file in 2 states.
Which states has Michael Patrick Riordan been licensed in?
Dmand AI has state licenses on file for Michael Riordan in South Carolina and Connecticut.
Which hospitals is Michael Patrick Riordan affiliated with?
Michael Riordan practices at Spartanburg Medical Center in Spartanburg, South Carolina. Michael Riordan is also affiliated with Cherokee Medical Center.
What medical group is Michael Patrick Riordan part of?
Michael Riordan is linked to Medical Group of the Carolinas - Family Medicine - Converse Heights.
Does Michael Patrick Riordan accept Medicare?
Yes. CMS lists Michael Riordan as accepting Medicare assignment.
What is Michael Patrick Riordan's MIPS score?
Michael Riordan's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
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How many Medicare patients does Michael Patrick Riordan see?
CMS counts 87 Medicare patients who saw Michael Riordan in 2024, with an average age of 73.
Has Michael Patrick Riordan received payments from drug or device companies?
CMS Open Payments shows $39 in general payments to Michael Riordan from 1 company from 2025 to 2025. The largest total came from Abbvie Inc.
How long has Michael Patrick Riordan been practicing?
Michael Riordan graduated from medical school in 2004, 22 years ago.
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