John R. Herald

John R. Herald MD

Specialties:

Cardiovascular Disease, Internal Medicine, and Interventional Cardiology
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4.8 / 5 (based on 485 Reviews) View 105 Comments
  • Group

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562.789.5430

Office Information

Hospital/Group Affiliation

PIH Health Whittier Hospital

PIH Health Physicians

Profile

Gender

Male

Specialties

  • Cardiovascular Disease
  • Internal Medicine
  • Interventional Cardiology

Education

Medical School

Wright State University School of Medicine (Ohio)

Residency

The University of Michigan

Fellowship

Kaiser Foundation Hospital-Los Angeles (California)

Board Certifications

  • Cardiovascular Disease
  • Internal Medicine
  • Interventional Cardiology

Patient Reviews

May 19, 2026
Very satisfied?
May 18, 2026
Dr Herald thinks out if the box and is alert to the tiniest issue avoiding a fatal heart attack.
May 15, 2026
Courtesy of the nurses and promptness in attending to me.
May 12, 2026
Very pleasant experience overall. Fast and courteous service and great experience with provider.
May 08, 2026
His medical nurse was a bit snarky. She should be working with paper rather than people. It was my first time seeing Dr. Herald. I located the office, checked in at the front desk, and sat down to complete the medication form. I then asked to use the restroom, which is down the hall. About 2 minutes later I returned. The nurse who escorted me to the doctor's room commented that I was late for my appointment. Apparently, she called my name as I was using the bathroom. Not a pleasant comment for my first visit or any visit. The other ladies in the office were as pleasant as could be, especially the receptionist who greeted me initially. She was very sweet.
May 07, 2026
Good first time experience with this doctor and his kind staff.
April 30, 2026
Very friendly and courteous staff.
April 30, 2026
First, I had an echo with (name removed), who also did my doppler a couple of weeks ago. Both times she was polite and personable. She then walked me to a room to wait for Dr Herald. He, as always, was knowledgeable, understanding, and personable!
April 30, 2026
In and out... everything I wanted to talk about was covered... next appointment and tests were made... everyone was friendly and efficient
April 28, 2026
This was my second visit to this office and I must say the entire staff is nice and friendly.
April 21, 2026
I was very impressed with Dr. Herald . He listened to me very, very attentively. Not only did he listen, but he gave me a feeling that I was, that they really care and they want to get the most accurate test results and not just assume what I'm saying was probably part of the problem. He used or suggested a test which would eliminate any questions, you know, of what my heart condition could possibly and that brought me a lot of
April 21, 2026
Of all the specialists who visited PIH Hospital, Dr. Herald has been the one who has treated me best. He has listened to what I say, and honestly, as a professional, I give him a 10. Thank you, Dr. Herald.
April 21, 2026
the doctor listens very well to what I had to say and responded well
April 20, 2026
He was a very kind, understanding man. Through the test that I had to go through when I was in the facility, he was there and other doctors weren't there. So I appreciated everything he did and how he explained everything to me and gave me peace. Thank you.
April 14, 2026
The staff was very friendly and courteous. Dr Herald is awesome and made me feel comfortable.
April 14, 2026
Doctor herald gave me peace of mind and (name removed) is nice
April 13, 2026
Thank You Dr. Herald.
April 09, 2026
Excellent cardiologist, attentive, professional, very helpful
April 09, 2026
Great office and all the staff, Doctor was patient and listened to all my concerns explained things well and recommended a test he felt was needed!
April 06, 2026
Dr. Herald, Dr.(name removed) were very professional, attentive & patient. (Name removed) (took my vital signs, EKG) was also very professional, attentive & patient. Front & back office personnel, very professional, attentive & patient. Thank you!
April 06, 2026
I am extremely happy and impressed with Dr. Herald. He's one of the best doctors I've ever met and being so young and so gentle and kind and very, very professional. I am very happy and I'm more than glad to endorse him.
April 06, 2026
Physician explained new Rx for my A-Fib Dx
April 02, 2026
Dr. Herald is extremely, extremely, very nice, very polite, and very, very informative. He answered all my questions, gave me the results of my tests with no problem where I could understand everything. I would recommend him highly to anyone. Thank you.
March 26, 2026
I'm sorry that I pressed one for the office staff. I pressed an error and I was satisfied with the office staff. Thank you.
March 26, 2026
He was, Dr. Herald was very nice. I saw him in the hospital and he came in every day that I was in there just to check on me and one time just to apologize that the schedule we'd had got a little, it was a little messed up so he came to apologize for that also. I liked him a lot and he was a good doctor to me so I definitely recommend him.
March 23, 2026
My only complaint would be two things the parking lot situation. First, arriving in the morning, especially Monday morning, it met with and overflow of agressive drivers all attempting locate an empty space. I literally saw a car miss a patient walking in the parking lot by less than a couple feet while agressively speeding to get to a clear space. Second, the parking lot ticket machine are often out of service and/or do not work correctly. Might want to fix that.
March 20, 2026
The staff and the doctors were very nice. They took the time to explain and I liked them. Thank you.
March 20, 2026
The office staff was awesome, Great group of girls..
March 19, 2026
Doctor and staff were very helpful and professional.
March 12, 2026
We really like this Cardiologist nobody found any medication to help my problem with my blood pressure. We finally came to this doctor and he has been controlling my medication for about a year so happy to found him. He's great. He does important test and explains everything . Love this Dr. The staff in the front office needs a little bit of training because they forget to add appointments in the system then you show up and they are like we don't have you in the system and we have the paper with appointments. The nurses are great when they take you in the room other than that it's perfect.
March 09, 2026
Everything went well im happy with results
March 03, 2026
Everyone including the docter were very kind.
February 27, 2026
I was very confident with the doctor that I had. I felt very confident.
February 26, 2026
Very professional with excellent service! Thank you!
February 24, 2026
I like the way Dr. Herald listens to me.
February 24, 2026
Looking forward to next meeting.
February 20, 2026
I felt very comfortable, at ease and able to talk freely about my health issues, And didn't feel rushed ,I really appreciated that Thank you
February 20, 2026
I've had 2 appointments at the PIH Putnam office in the last few weeks. It is very frustrating that for each appointment I need to complete the online check-in even though the information hasn't changed. It is time consuming to have to fill in the exact same information that I filled in only a week prior. It's all in the same system, so it's redundant.
February 10, 2026
Dr Herald is extremely professional and caring. I am glad that I was able to get him as my cardiologist.
February 09, 2026
Dr, Herald was caring and listened to me and was agreeable to my suggestions .
February 09, 2026
Dr Herald is a good listener & took time to answer my concerns
February 04, 2026
Prompt fully explained treatment plan made me feel comfortable
February 03, 2026
A very professional and kind doctor
February 03, 2026
GREAT PLACE FOR MEDICAL CARE
February 02, 2026
Dr. Herald is a good doctor and I've seen him once before and I would recommend him and he was thorough with me and everything. Thank you.
January 27, 2026
All good
January 26, 2026
Dr Herald is thorough, professional and caring. He treats the whole person.
January 23, 2026
I was unhappy that I was not able to book my appointment earlier because I was told that my original doctor was no longer my doctor because I hadn't seen him in awhile.
January 13, 2026
Dr. Herald was very professional, knowledgeable, good listener, explained every subject very clearly. Good manners , friendly approach. Highly recommended.
January 08, 2026
I appreciate the short wait times and the excellent care.
January 08, 2026
The staff providers are great. Great interaction
December 30, 2025
Okay, I was, I have some difficulty taking my blood pressure and I also have some difficulty with the instructions because the medicine is specific to my heart. But I understand what he told us and I'm just doing my very best to follow that. Thank you.
December 29, 2025
Great doctor, great service, great staff. Everybody's friendly, very informative, and they took really good care of me.
December 16, 2025
Hi, Dr. (name removed), he was really, really great, really listened to me. I would recommend him to my family and friends. And thank you so very much, doctor. Bye.
December 01, 2025
This was my first time meeting Dr Herald. I immediately liked him as my new cardiologist. He was very thorough and efficient. He recommended that I have an echocardiogram done since he heard my murmur and it had been a few years since my original one . He wasn't overly concerned; but taking precaution.I appreciated his concern and his staff took care of scheduling it for me. The staff in that office is great; friendly and willing to assist. Thank you!
November 21, 2025
I'm very pleased with the way Dr. Herald listens to me when I come in. I am impressed with his knowledge and he was very helpful in giving me some additional things that I could do along with affirmation of things that I had been doing. I very much appreciate Dr. Herald and am looking forward to the continuing relationship with him.
November 21, 2025
Keep up the good work! Thank you for the service.
November 18, 2025
Great Experience !!
November 18, 2025
I appreciated Dr. Herald's kindness, knowledge and professionalism.
November 17, 2025
Dr. & staff were very helpful! I have confidence Dr. has helped so much with my health care!
November 14, 2025
They were very punctual when we arrived, we were attended to immediately, the doctor was very kind, and we left very happy. Thank you very much.
November 13, 2025
Very satisfied with this provider.
November 04, 2025
I appreciated Dr. Herald's attentiveness and engaged style. He is very professional and listens intentionally.
November 04, 2025
Very good attention.
November 04, 2025
This and all appointments at PIH is definitely hard to make, get into. If I really needed to see a doctor due to illness, I'd have to go to urgent care. However if I was planning my yearly checkups or follow ups scheduling 3 months ahead of appointment is OK
October 27, 2025
Pih doctors are great
October 23, 2025
It's the first time I had an appointment with Dr Herald. I was pleased with his demeanor and the appointment was brief. I enjoyed his confidence in my judgment. A first time, I think should be like a consult with in depth medical review. I look forward to our subsequent meetings.
October 23, 2025
From beginning to end First Class all the way.
October 20, 2025
Hello, my name is (PHI removed). Regarding Dr. Herold's office, I would definitely give everyone a 10, from the front desk to the doctor himself. They are all very professional people, and I have received wonderful care. Thank you, Dr. Herold. Bye.
October 20, 2025
I try to be proactive when it comes to my health and I felt I was listened to and had a good consultation. I feel very good with recommendation and moving forward.
October 16, 2025
The staff is very professional. Dr Herald is always very good. Also, I didn't have to wait long to see him.
October 13, 2025
Thank You. To the staff and Dr. Herald.
October 07, 2025
Dr Herald, (name removed) (his nurse) and (name removed) (front office) were all exceptional.
October 06, 2025
The nurse that took my vitals could have been a little more friendly and not be in such a rush.
September 30, 2025
I was very nervous going there and the nurse that I had was awesome. He is a very, very nice, very reassuring nurse. The doctor was awesome and I was happy. Thank you, you guys. That's it.
September 30, 2025
This was my first time with this doctor. I learned more than I have known before. Grateful
September 30, 2025
Everyone is very professional and made me feel very comfortable. I trust Dr Herald with my life!
September 29, 2025
Medicine is expensive maybe too expensive
September 18, 2025
Met Dr. Herald for the first time. He was very professional and answered all my questions.
September 09, 2025
It was my first visit with this doctor, so I don't have much to say maybe on my second visit I could say more overall the visit was OK The only thing I didn't like is that I had a pay for parking.
September 05, 2025
Everyone was very helpful
September 02, 2025
Very professional
August 29, 2025
Dr Herald was attentive, professional and supportive of our (me and my husband) needs. It was our first time meeting with Dr Herald. His caring manner made us feel like we were in good hands.
August 28, 2025
Dr Herald is very nice ... accommodating and listens to me/his patient. I appreciate his kind understanding; facilitating my request for an appointment with him. The staff is is also nice and helpful. Happy with my experience/appt with Dr Herald
August 26, 2025
I liked very much that my Dr was very thorough and professional and did not rush me during my appointment. And he did not take forever to make his point.
August 19, 2025
I appreciated that the doctor was very kind and understanding for my needs to move things forward sooner to help me with the procedure that I need to get done.
August 05, 2025
Lupita was great, she was very friendly and tentative, Dr Herald was great and listened to my concerns and he gave me what I was looking for as far as imaging and I do think he has my best interest when it comes to my health. Only complaint if any was how long it took to get my appointment, but I understand now because the service is great.
August 05, 2025
Dr Herald and the nurses in the office were all professional and very kind. I feel like I was heard, and I'm comfortable with the assessments he wants, as well as with the follow ups suggested. I feel like he treats the person without bias, and that's still pretty rare in medicine.
August 01, 2025
They read all my pre-prepared notes and questions, and answered each one. They were patient and understanding and its very appreciated!
July 29, 2025
Yes, I was very satisfied with Dr. Harald's visit I had with him. I went into the office on July 29th and I had palpitations and he was able to diagnose and even had to send me to the ER to get some medication and he acted quickly and promptly. He was very understanding, listened to your needs, The office staff was great, came to see me when I was in the hospital for the two days or three days, and I would definitely keep going back and recommend him.
July 29, 2025
Dr. Herald has been wonderful and I am so grateful and blessed to have his as my cardiologist. I tell all my family and friends about him and highly recommend him to all
July 24, 2025
They were very compassionate and kind.
July 17, 2025
They went over my medical records that I had at PIH but my past medical records from other hospital that have deferent IPA's other then PIH are incomplete. Do you need me to help you out with getting medical records from other hospitals or doctors offices or do you need just the names of hospitals or doctors and dates that have treated me in the past ?
July 15, 2025
Your staff and Dr were amazing
July 14, 2025
It was my first time meeting Dr. Herald.
July 14, 2025
Staff and the Doctor were very helpful, the doctor listen to my concerns and he is very knowledgeable, I was very satisfied with the service. I will definitely recommend the Doctor.
July 11, 2025
Dr Herald is always professional communicated clearly and I trust his experience and knowledge.
July 10, 2025
All office staff were amazing!
July 07, 2025
Very impressed with seeing doctor close to my appointment time. The office staff helpful from time of arrival until set up of next appointment. Doctor assistant very helpful & explained all procedures & what to expect. Doctor answered all my questions & looked over history of my condition.
July 01, 2025
This was my first visit with Dr. Herald. I found him very knowledgeable, thorough, and personable. I will be switching to him for my future appointments.
June 27, 2025
Friendly staff, accommodating. Dr. Herald took his time to explain things. Has good bedside manner.
June 27, 2025
Very satisfied
June 23, 2025
Entire staff from check in to checking out were very courteous and pleasant.
June 13, 2025
The nurse (name removed) was extremely informative, courteous and kind. She listened attentively to my concerns.
June 12, 2025
A great doctor, felt very comfortable. I'm happy with the services and I'm glad it was him. Thank you so much.
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