Ryan Riordan, PA-C

  • New Haven, CT
  • Physician assistant
NPI1972149144
Medicare patients, 2024
83
Part D claims, 2024
163
MIPS score, 2024
87
Hospital affiliations
1
Medical group
1
Practice address
20 York Street, New Haven, CT 06510
Practice phone
Call (203) 688-5900
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Yale New Haven Psychiatric Hospital (York St)

Psychiatric Inpatient Facility · New Haven, Connecticut

See all 3 affiliations

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Ryan Riordan is a physician assistant in New Haven, Connecticut

Ryan Riordan practices at Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut.

Ryan Riordan's NPI, 1972149144, was assigned on November 22, 2019. Ryan Riordan holds Connecticut license 23.004803.

NPI and contact details
NPI enumeration date
November 22, 2019
NPI status
Active
Practice phone
(203) 688-5900
Professional email
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Personal email
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Mobile number
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Sex
Male

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Ryan Riordan practices at Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut

Ryan Riordan's primary practice is Yale New Haven Psychiatric Hospital (York St), at 20 York Street, New Haven, CT 06510. The practice phone is (203) 688-5900.

  • Yale New Haven Psychiatric Hospital (York St)
    20 York Street, New Haven, CT 06510Phone(203) 688-5900

Source: Dmand AI Affiliation Data

Ryan Riordan is affiliated with 2 sites of care and 1 medical group

Ryan Riordan's primary practice is Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut. Ryan Riordan is also affiliated with Yale New Haven Hospital. The medical group on file is Yale Health.

Yale New Haven Psychiatric Hospital (York St)Psychiatric Inpatient Facility · New Haven, ConnecticutPrimary
Yale New Haven HospitalAcute care hospital, New Haven, CTYale HealthPrimary care group, New Haven, CTParent health systemName with a free account
See all 3 affiliations for Ryan Riordan

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Ryan Riordan's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Ryan Riordan practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Yale New Haven Psychiatric Hospital (York St)Available with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Ryan Riordan is one of 1,682 physician assistants in Connecticut

Physician assistant is Ryan Riordan's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Dmand AI has Ryan Riordan's licenses on file in 3 states: Connecticut, Colorado and Illinois.

Specialties and state licenses

  • Physician assistant, ConnecticutPrimaryLicense 23.004803 · taxonomy 363A00000X
  • Colorado licenseLicense PA.0006001
  • Illinois licenseLicense 085007460

Physician assistants near Ryan Riordan

Counts of physician assistants 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

Ryan Riordan treated 83 Medicare patients in 2024, average age 71

CMS counts 83 Medicare patients who saw Ryan Riordan in 2024. The largest group is 75 to 84, with 32 patients. 69% of them have high blood pressure, and 69% have high cholesterol. 40% are also on Medicaid. Their average risk score is 1.54, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Ryan Riordan's median patient age at 69, with 59% women.

Medicare patients, 202483
Average age71
Average risk score1.54
Also on Medicaid40%

Ryan Riordan's Medicare patients by age, 2024

Ryan Riordan's Medicare patients by sex, 2024

  • Women3947%
  • Men4453%

Chronic conditions among Ryan Riordan's Medicare patients, 2024

  1. High blood pressure69%
  2. High cholesterol69%
  3. Arthritis52%
  4. Mood disorders36%
  5. Ischemic heart disease35%
  6. Anxiety33%
  7. Depression31%
  8. Chronic kidney disease25%

Share of Medicare patients with each condition. A patient can have several.

Ryan 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

  • Women59%
  • Men40%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Ryan Riordan wrote 163 Medicare Part D claims in 2024

In 2024, Ryan Riordan wrote 163 Medicare Part D claims for 131 patients. 94% of them were for generic drugs.

Part D claims, 2024163
Part D patients131

Ryan Riordan's Part D claims by kind of drug, 2024

  • Generic154 claims94%
  • Brand-name and other9 claims6%

Drug classes CMS tracks in Ryan Riordan's Part D claims, 2024

  • Antibiotics46%75 of 163 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

Ryan Riordan scored 87 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Ryan Riordan for performance year 2024, reported as part of a group.

Ryan Riordan's MIPS scores, performance year 2024

  • 87of 100Final score
  • 77.4of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 74of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Sources for Ryan Riordan's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesClinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Ryan 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 Ryan Riordan's NPI number?

Ryan Riordan's NPI number is 1972149144. It was assigned on November 22, 2019, and it is active in the NPI Registry.

What does Ryan Riordan specialize in?

Ryan Riordan is a physician assistant in New Haven, Connecticut. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Ryan Riordan practice?

Ryan Riordan practices at 20 York Street, New Haven, CT 06510. Ryan Riordan's primary practice is Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut.

What is Ryan Riordan's office phone number?

The practice phone on file for Ryan Riordan is (203) 688-5900.

What is Ryan Riordan's medical license number?

Ryan Riordan holds Connecticut license 23.004803, one of the licenses on file in 3 states.

Which states has Ryan Riordan been licensed in?

Dmand AI has state licenses on file for Ryan Riordan in Connecticut, Colorado and Illinois.

Which hospitals is Ryan Riordan affiliated with?

Ryan Riordan is affiliated with Yale New Haven Hospital.

What medical group is Ryan Riordan part of?

Ryan Riordan is linked to Yale Health.

What is Ryan Riordan's MIPS score?

Ryan Riordan's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.

How many Medicare patients does Ryan Riordan see?

CMS counts 83 Medicare patients who saw Ryan Riordan in 2024, with an average age of 71.

How long has Ryan Riordan been practicing?

Ryan Riordan's NPI was assigned in 2019.

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