Martin J. ORiordan, MD

Martin J. ORiordan, MD

Cardiology, Cardiovascular Disease

Provider Groups

  • Trinity Health Mid-Atlantic Medical Group

Primary Contact

(610) 586-4100
Appointments (Existing Patients Only)
Provider Groups
  • Trinity Health Mid-Atlantic Medical Group

Primary Contact
(610) 586-4100

Services & Specialties

  • Cardiology
  • Cardiovascular Disease

Locations & Contact

Primary Location

Cardiology Darby

1503 Lansdowne Avenue
Sr. Marie Lenahan Wellness Ctr, Suite 3001
Darby, PA 19023

View hours
Monday
8:30am - 5:00pm
Tuesday
8:30am - 5:00pm
Wednesday
8:30am - 5:00pm
Thursday
8:30am - 5:00pm
Friday
8:30am - 5:00pm

Cardiology Springfield

1001 Baltimore Pike
Suite 10, Lower Level
Springfield, PA 19064

View hours
Monday
8:00am - 5:00pm
Tuesday
8:00am - 5:00pm
Wednesday
8:00am - 5:00pm
Thursday
8:00am - 5:00pm
Friday
8:00am - 5:00pm

Also Affiliated With...

Additional Resources

Education & Certifications

Education

Medical School:
Jefferson Medical College

Internship:
Medical College of Pennsylvania

Fellowship:
Lankenau Medical Center

Board Certifications

Cardiovascular Disease, American Board of Internal Medicine

Provider Groups

Trinity Health Mid-Atlantic Medical Group

Provider Ratings

The following ratings and reviews are based on verified feedback collected from independently administered patient experience surveys. The ratings and comments submitted by patients reflect their own views and opinions. Patient identities are withheld to ensure confidentiality and privacy. Learn More >

4.9 out of 5

(335 ratings)

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

109 Reviews

08/26/2025

Always explains things in a way I can understand

08/25/2025

Friendly, professional, thorough. down to earth.

08/21/2025

All good; office staff also very helpful and kind

08/21/2025

I feel that Dr O鈥橰iordan is really great with his patients. Both my husband and I are new to him but we both have every confidence in him

08/20/2025

Dr O'Riordan has taken great care of me

08/19/2025

I was seen by the medical student working with Dr. O'Riordan before he came in the room. She was professional and covered everything she needed about the reason for my visit to repeat to the doctor when he came in. He listened to her and confirmed with me what she was saying. He asked if I had anything to add or any questions. I felt that I had a complete exam.

08/18/2025

I have been seeing Dr. O'riordan for 10 years and he has been one of the best doctors I have ever seen.

08/18/2025

Just a very nice and kind man

08/18/2025

Dr. O'Riordan is exceptional, and I couldn't ask for better care.

08/14/2025

Excellent service from the doctor the medical student also was there and excellent service from the staff. They were professional respectful and answered all my questions. Thank you very much for your service and your time.

08/14/2025

Hopefully, he stick around just as long as Dr. Correnti did.

07/31/2025

It is always perfect.

07/31/2025

He was very personable and listened to my concerns. He explained things in a way that was very easy to understand

07/29/2025

Always a pleasant visit with Dr. O'Riordan

07/29/2025

I just really like him he is easy to engage with and he always seem happy and I believe he really cares for his patients

07/28/2025

Extremely helpful

07/24/2025

I like Dr. O'Riordan very much. His manner is upbeat and cheerful and I think that's the best kind of personality for a heart doctor because heart patients have a lot of fear and stress about their condition and his manner is very uplifting.

07/24/2025

Very competent doctor & a good person

07/17/2025

Keeping it short.I can鈥檛 say enough.

07/17/2025

Always help up and very knowledgeable

07/16/2025

I ALWAYS FLET LIKE FAMILY

07/16/2025

He takes time to explain my health experience to his assistant who is very courteous and respectful to ask questions.

07/16/2025

This is a great person as well as a Doctor

07/15/2025

Always makes me feel like he's concerned and informative about my concerns/needs.

07/14/2025

all good

07/14/2025

Dr. O鈥橰iordan and his staff are very kind, caring and supportive.

07/14/2025

Great doctors!

07/14/2025

I put my life in this mans hands over 20 years ago and I feel that was a good decision.

07/10/2025

Doctor is very thorough. Staff is all very, very nice.

07/10/2025

He's been caring for me 30+ yearsI He is a kind and wonderful dr and he is very knowledgeable I live in southern De now but drive up to Springfield for all of my visits(a 2hr drive)Staff has always been wonderful and courteous and always followed thru

07/07/2025

Excellent and understanding physician. Provided an easy and understandable solution.

07/02/2025

Very polite and very understanding and help me with all my needs and once

06/30/2025

The best!

06/24/2025

Dr. O鈥橰iordan is a very good listener. He is clearly a physician who uses evidence based medicine

06/19/2025

everyone is very courteous and kind

06/16/2025

Exceptional care

06/12/2025

Always excellent

06/10/2025

Doctor cares about your understanding of everything.

06/09/2025

Dr. Orierdon (sp.) is an outstanding dr.

06/05/2025

Pleasant experience

06/05/2025

Everything was very good and all my concerns were addressed

06/04/2025

The annual checkup was very satisfactory.

05/29/2025

I trust him

05/27/2025

I'll be back

05/22/2025

Excellent cardiologist. Made sure I understood my diagnosis and treatment. Answered all my questions

05/20/2025

thank you for your thorough and kind explanations

05/19/2025

Always very informative and up todate

05/19/2025

All we鈥檙e friendly

05/15/2025

Welcoming atmosphere

05/15/2025

The doctor is very professional and caring.

05/15/2025

The office was orderly & organized

05/12/2025

I always have a positive experience.

05/12/2025

Wonderful Experience

05/01/2025

Excellent Doc & Office Staff

05/01/2025

follow-up very good ultrasound

04/29/2025

All good

04/22/2025

All was good 馃憤

04/21/2025

Good listener

04/10/2025

GREAT!

04/10/2025

All very good

04/09/2025

Top-of-the-line service. Excellent care.

04/03/2025

The office staff and doctors are caring and extremely pleasant. It a really nice team.

03/20/2025

Everyone was very accommodating.

03/19/2025

Everything good

03/06/2025

We were treated with great care and respect. It is such a a well run office. It is a pleasure to be a patient there.

03/04/2025

Great office

02/24/2025

thorough

02/20/2025

So far so

02/13/2025

Relatable

02/10/2025

Dr O鈥橰iordan has been my cardiologist for many years.Couldn't be in any better hands.

02/10/2025

My first visit. A little nervous but they put me at ease. I was very happy with the staff, doctor and assistant.

02/04/2025

Staff was very courteous and caring

02/03/2025

Dr. O'Riordan is amazing. He takes the time to explain things and answer questions.

01/31/2025

Just very caring individuals that I encounter when I go here. The check-in is pleasant,.

01/30/2025

Nothing to add. Just a terrific provider.

01/21/2025

Dr O'riordan has been great

01/20/2025

I felt like I was being treated like a member of the family! A real rarity these days.

01/13/2025

all good

01/13/2025

I've been a patient for 25 years. I survived the pandemic without any complications.

01/10/2025

Never a sense of being rushed. The doctor took his time and explaining. Felt very comfortable in the way I was treated.

01/09/2025

Very happy with my experience with this provider and staff. Thank you!

01/09/2025

I can say that I've had issues with my Primary care provider and a Neurologist was using and made a change in providers. I only kept ones that made me feel comfortable with. I feel that Dr. and staff work well together and have done nothing but work with me and my health care.

01/08/2025

Thank You For Your Professional Care You Give Me

01/08/2025

Dr. O鈥橰iordan is knowledgeable, personable, and genuinely caring. He鈥檚 simply the best!

01/02/2025

I鈥檝e always had very good care given to me at this site for my appointments

01/02/2025

Always up on the latest studies and research. Explains lab results even if not necessarily heart related.

12/19/2024

Dr O'Riordan is a good listener & answers all my questions.

12/16/2024

I never feel rushed. Always asks if I have questions.

12/12/2024

As the Dr. is thorough, he does spend a sufficient amount of time with you. He does not rush you out of his office.

12/09/2024

THEY ARE THE BEST THATS IT

12/04/2024

Dr. O'Riordan was excellent. He is knowledgeable, professional, and compassionate, one of the best practitioners I've ever seen.

12/04/2024

Excellent

12/04/2024

Answered all my questions

11/18/2024

The Best

11/14/2024

Dr. O'Riordan is so kind and he have an appropriate sense of humor.

11/13/2024

Good Doctor

11/12/2024

My wife and I were very pleased with all the personnel .

11/12/2024

outstanding; excellent.

11/12/2024

Dr. O'riordan explained test results and the reasons for changes in ongoing care in a way I could understand

11/11/2024

Pleasant

10/30/2024

Doctor explains everything in detail.Cares about his patients.

10/22/2024

Maintain quality of care.

10/22/2024

Doctor explains very clearly so you have a good understanding of what is going on with your health

10/21/2024

A good listener. An encourager

10/21/2024

Dr O鈥橰iordan is an excellent physician! His exam was thorough, his explanation was easily understandable,. I鈥檓 privileged to be his patient.

10/17/2024

Everything was great

10/10/2024

Forever grateful - this team starting in 2021 diagnosed, responded, and treated me. Everything they did was spot on. I gladly speak about 鈥渕y team's when sharing my experience. Dr. O鈥橰eadon is exceptional in all aspects of his job. ,

10/10/2024

Very helpful and satisfying

09/30/2024

I love Dr. O鈥橰iordan
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