J Am Coll Cardiol
Arrhythmias, CardiacDeath, Sudden, CardiacHeat Stroke
Dr. Martin J. O'Riordan, MD
NPI1528063385PAC ID0143357954
- Medicare services, 2024
- 2,274
- Medicare patients, 2024
- 718
- Part D claims, 2024
- 4,996
- Publications
- 1
- Hospital affiliations
- 4
- Practice address
- 501 S 54th St, Philadelphia, PA 19143
- Practice phone
- Call (215) 762-0888
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hospital of the University of Pennsylvania - Cedar Avenue
Philadelphia, Pennsylvania
Find Dr. O'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.
Dr. Martin J. O'Riordan is a cardiologist in Philadelphia, Pennsylvania
Dr. O'Riordan practices at Hospital of the University of Pennsylvania - Cedar Avenue in Philadelphia, Pennsylvania.
Dr. O'Riordan's NPI, 1528063385, was assigned on June 17, 2005. Dr. O'Riordan graduated from Jefferson Medical College of Thomas Jefferson University in 1987. Dr. O'Riordan holds Pennsylvania license MD041717E.
NPI and contact details
- NPI
- 1528063385NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0143357954
- NPI enumeration date
- June 17, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (215) 762-0888
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Martin J. O'Riordan practices at Hospital of the University of Pennsylvania - Cedar Avenue in Philadelphia, Pennsylvania
Dr. O'Riordan's primary practice is Hospital of the University of Pennsylvania - Cedar Avenue, at 501 S 54th St, Philadelphia, PA 19143 in Philadelphia County. The practice phone is (215) 762-0888.
- Hospital of the University of Pennsylvania - Cedar Avenue501 S 54th St, Philadelphia, PA 19143 · Philadelphia CountyPhone(215) 762-0888
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Martin J. O'Riordan is affiliated with 6 sites of care and 1 medical group
Dr. O'Riordan's primary practice is Hospital of the University of Pennsylvania - Cedar Avenue in Philadelphia, Pennsylvania. Dr. O'Riordan is also affiliated with Hospital of the University of Pennsylvania. The medical group on file is Trinity Health Mid-Atlantic Medical Group. Dmand AI also links Dr. O'Riordan to 3 more hospitals and 1 group practice or clinic, each named with a free account.
Hospital of the University of Pennsylvania - Cedar AvenuePrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Martin J. O'Riordan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Riordan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hospital of the University of Pennsylvania - Cedar Avenue | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. O'Riordan practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Martin J. O'Riordan is one of 1,206 cardiologists in Pennsylvania
Cardiovascular disease is Dr. O'Riordan's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. O'Riordan is licensed in Pennsylvania.
Specialties and state licenses
- Cardiovascular disease, PennsylvaniaPrimary
Cardiologists near Dr. O'Riordan
Counts of cardiologists 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
Dr. Martin J. O'Riordan billed Medicare for 2,274 services in 2024
CMS data shows 2,274 Medicare services from Dr. O'Riordan across 18 procedure codes in 2024, for 718 Medicare patients. Medicare paid $128,863 for them.
Medicare services, 20242,274
Medicare patients718
Paid by Medicare$128,863
Procedure codes18
Dr. O'Riordan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,2812024: 1,3314%
- Office and hospital visits
- 2023: 1,1172024: 94316%
Where Dr. O'Riordan's Medicare services took place, 2024
- In an office1,64572%
- In a facility62928%
Dr. O'Riordan compared with the Pennsylvania median for cardiologists, 2024
- Dr. O'Riordan
- Pennsylvania median
- Medicare services
- 2,274vs 1,74530% above
- Medicare patients
- 718vs 85516% below
- Part D claims
- 4,741vs 1,6692.8 times
Medians across 1,207 cardiologists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. O'Riordan's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. O'Riordan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. O'Riordan and other cardiologists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Martin J. O'Riordan treated 718 Medicare patients in 2024, average age 74
CMS counts 718 Medicare patients who saw Dr. O'Riordan in 2024. The largest group is 65 to 74, with 306 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 32% are also on Medicaid. Their average risk score is 1.90, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. O'Riordan's median patient age at 70, with 49% women.
Medicare patients, 2024718
Average age74
Average risk score1.90
Also on Medicaid32%
Dr. O'Riordan's Medicare patients by age, 2024
Dr. O'Riordan's Medicare patients by sex, 2024
- Women36551%
- Men35349%
Chronic conditions among Dr. O'Riordan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Ischemic heart disease49%
- Diabetes46%
- Chronic kidney disease33%
- Heart failure32%
- Atrial fibrillation30%
Share of Medicare patients with each condition. A patient can have several.
Dr. O'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 70
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Martin J. O'Riordan wrote 4,996 Medicare Part D claims in 2024
In 2024, Dr. O'Riordan wrote 4,996 Medicare Part D claims for 660 patients. 87% of them were for generic drugs. CMS names the drug for 4,741 of them, across 50 drugs with 11 or more claims each, at $672,321 in total drug cost. In 2023, CMS named 4,484 claims across 53 drugs.
Part D claims, 20244,996
Drugs named by CMS50
Total drug cost$672,321
Part D patients660
Dr. O'Riordan's Part D claims by kind of drug, 2024
- Generic4,343 claims87%
- Brand-name653 claims13%
Dr. O'Riordan's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. O'Riordan's Part D claims, 2024
- Antibiotics0%19 of 4,996 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4,4842024: 4,7416%
Drugs named by CMS: 50 in 2024, 53 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Martin J. O'Riordan takes part in Medicare
Dr. O'Riordan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Find cardiologists like Dr. O'Riordan by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Martin J. O'Riordan has 1 publication on record
Dmand AI links 1 paper to Dr. O'Riordan.
Papers1
Recent publications by Dr. O'Riordan
See who Dr. O'Riordan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. O'Riordan works with, so you can find a warm path to the right cardiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Martin J. O'Riordan received $18,323 in industry payments from 2016 to 2025
CMS Open Payments shows 959 general payments to Dr. O'Riordan from 46 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Novartis Pharmaceuticals Corporation paid the most, $3,048.
General payments to Dr. O'Riordan by program year, 2016 to 2025
General payments to Dr. O'Riordan by kind, 2016 to 2025
$18.3Kin total
- Food and beverage$18,304100%
- Education$200%
Companies that paid Dr. O'Riordan the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Martin J. O'Riordan graduated from Jefferson Medical College of Thomas Jefferson University
Dr. O'Riordan graduated from Jefferson Medical College of Thomas Jefferson University in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Martin J. O'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Dr. Martin J. O'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 Dr. Martin J. O'Riordan's NPI number?
Dr. Martin J. O'Riordan's NPI number is 1528063385. It was assigned on June 17, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Martin J. O'Riordan?
Dr. Martin J. O'Riordan is a cardiologist in Philadelphia, Pennsylvania. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Martin J. O'Riordan practice?
Dr. O'Riordan practices at 501 S 54th St, Philadelphia, PA 19143. Dr. O'Riordan's primary practice is Hospital of the University of Pennsylvania - Cedar Avenue in Philadelphia, Pennsylvania. Dmand AI also links Dr. O'Riordan to 3 hospitals and 1 group practice or clinic.
What is Dr. Martin J. O'Riordan's office phone number?
The practice phone on file for Dr. O'Riordan is (215) 762-0888.
What is Dr. Martin J. O'Riordan's medical license number?
Dr. O'Riordan holds Pennsylvania license MD041717E.
Which hospitals is Dr. Martin J. O'Riordan affiliated with?
Dr. O'Riordan is affiliated with Hospital of the University of Pennsylvania. Dmand AI links Dr. O'Riordan to 3 more hospitals.
What medical group is Dr. Martin J. O'Riordan part of?
Dr. O'Riordan is linked to Trinity Health Mid-Atlantic Medical Group.
Does Dr. Martin J. O'Riordan accept Medicare?
Yes. CMS data shows Dr. O'Riordan billed Medicare for 2,274 services in 2024, and Dr. O'Riordan accepts Medicare assignment.
How many Medicare patients does Dr. Martin J. O'Riordan see?
CMS counts 718 Medicare patients who saw Dr. O'Riordan in 2024, with an average age of 74.
What services does Dr. Martin J. O'Riordan bill to Medicare?
In 2024, Dr. O'Riordan's most billed Medicare services were heart test or procedure (93000), office visit, established patient (99214) and heart test or procedure (93010).
Show 5 more questionsShow fewer questions
Where did Dr. Martin J. O'Riordan go to medical school?
Dr. O'Riordan graduated from Jefferson Medical College of Thomas Jefferson University in 1987.
What drugs does Dr. Martin J. O'Riordan prescribe most?
In 2024 Medicare Part D data, Dr. O'Riordan's most prescribed drugs by claims were Rosuvastatin Calcium, Atorvastatin Calcium and Metoprolol Succinate.
Has Dr. Martin J. O'Riordan received payments from drug or device companies?
CMS Open Payments shows $18,323 in general payments to Dr. O'Riordan from 46 companies from 2016 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. Martin J. O'Riordan been practicing?
Dr. O'Riordan graduated from medical school in 1987, 39 years ago.
Does Dr. Martin J. O'Riordan do research?
Dmand AI links 1 publication to Dr. O'Riordan.
Selling to cardiovascular disease practices?
See cardiologists in Pennsylvania by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card