
Highlights
Age Groups Seen
- Young Adult 18-25
- Adult 26-64
- Older Adult 65+
Languages
- Romanian
- German
- English
In-Network Plans
View All Accepted Plans (8)Gender
MaleJohns Hopkins Affiliations:
- Johns Hopkins School of Medicine Faculty
About Calin Maniu
Primary Academic Title
Assistant Professor of Medicine
Johns Hopkins Physician
Background
Dr. Maniu joins the interventional section as an interventional cardiologist with over two decades of experience in academic, hospital, and community settings. He earned his medical degree from Carol Davila University of Medicine and Pharmacy in Bucharest, Romania, and completed his residency in Internal Medicine, as well as fellowships in Cardiovascular Diseases and Interventional Cardiology, at the Mayo Clinic in Jacksonville and Rochester.
Clinically, Dr. Maniu sees outpatients at the Cardiology Clinic in Columbia, and he will cover the interventional lab at Howard County Medical Center. Also, he interprets outpatient echos, primarily at our Columbia Clinic office.
Locations
- Johns Hopkins Endoscopy & Surgery Center - Columbia
- 5450 Knoll North Drive, Suite 300, Columbia, MD 21045
- Get Directions
- phone: 443-997-0270
- fax: 410-964-5329
Expertise
Education
- Fellowship: Mayo Clinic College of Medicine, Interventional Cardiology, 2003
- Fellowship: Mayo Clinic College of Medicine, Cardiovascular Disease, 2002
- Residency: Mayo Clinic College of Medicine, Internal Medicine, 1999
- Medical Education: University of Medicine & Pharmacy Carol Davila, MD, 1995
Board Certifications
- Interventional Cardiology: American Board of Internal Medicine, 2003
- Cardiovascular Disease: American Board of Internal Medicine, 2002
Insurance
- First Health
- Geisinger Health Plan
- HealthSmart/Accel
- MultiPlan
- Pennsylvania's Preferred Health Networks (PPHN)
- Point Comfort Underwriters
- Private Healthcare Systems (PHCS)
- Veteran Affairs Community Care Network (Optum-VACCN)
Ratings & Reviews
4.9 out of 5
109 ratings, 34 reviewsThe Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.
- 5 out of 5 starsReviewed on 3/23/2026
Dr Maniu was professional, kind, went over information meticulously and made sure that we understood all information presented.
- 5 out of 5 starsReviewed on 3/16/2026
Wonderful doctor--caring, clear, professional. He really takes the time to listen and explains everything clearly.
- 5 out of 5 starsReviewed on 3/9/2026
Knowledgeable and likable
- 5 out of 5 starsReviewed on 3/3/2026
Very professional. Direct.
- 5 out of 5 starsReviewed on 3/2/2026
Very helpful in terms of providing specific and concrete suggestions I could do to improve my cardiac health. Listened to my questions and concerns.
- 5 out of 5 starsReviewed on 2/24/2026
He is absolutely the BEST! Caring, understanding, kind and experienced. His follow up regarding concerns is amazing. He calls to follow up working long hours. You really feel the care and concern. I cannot express enough our appreciation and fondness for Dr. Maniu. I would highly recommend to all!
- 5 out of 5 starsReviewed on 2/23/2026
Very professional and respectful.
- 5 out of 5 starsReviewed on 2/23/2026
Dr Maniu was thorough explaining my case. He gave some advice in taking blood pressure.
- 5 out of 5 starsReviewed on 2/2/2026
My Cardiologist
- 5 out of 5 starsReviewed on 1/20/2026
Very informative and down to earth who seems genuinely interested in my care
- 5 out of 5 starsReviewed on 1/12/2026
I was impressed that this doctor actually took the time to look at my medical history in detail prior to the appointment. (I was a new patient). He forgot to tell me something at the apt. So he called me right after the apt. He seems to be very thorough.
- 5 out of 5 starsReviewed on 1/6/2026
Excellent service, true professional, really put me at ease and explained everything.
- 5 out of 5 starsReviewed on 1/6/2026
Provider was exceptional!
- 5 out of 5 starsReviewed on 12/23/2025
Very thorough in my examination. explained his findings in ordinary language which made understanding easy.
- 5 out of 5 starsReviewed on 12/16/2025
I am very impressed by Dr. Maniu. He listens attentively, explains thoroughly, and has an excellent demeanor.
- 5 out of 5 starsReviewed on 12/9/2025
Seemed very concerned about my previous treatments and medications. If they aren't doing the job after 10yrs why am I on them. They are very good meds.
- 5 out of 5 starsReviewed on 12/2/2025
Dr. Maniu became my cardiologist when I moved from Pennsylvania to Maryland in May. Stated simply, I think he's superb.
- 5 out of 5 starsReviewed on 12/1/2025
First visit with this provider, went well
- 5 out of 5 starsReviewed on 11/10/2025
Very courtesy and informative. Information was provided In a way to be easy to understand.
- 5 out of 5 starsReviewed on 11/3/2025
Although this was my first visit with this provider, he knew my case history very well. He was very easy to talk to, and we had very pleasant discussions regarding my care, prognosis and treatment. I trust his judgement and advice. I look forward to seeing him again.
- 5 out of 5 starsReviewed on 10/28/2025
I was very pleased with my doctor. He spent a good amount of time with me, explained my condition clearly, and listened to me well.
- 5 out of 5 starsReviewed on 10/21/2025
The excellent doctor
- 5 out of 5 starsReviewed on 10/21/2025
Professionalism and patient care was illumined and stellar. I greatly appreciate service given!
- 5 out of 5 starsReviewed on 10/21/2025
Excellent doctor
- 5 out of 5 starsReviewed on 10/14/2025
I really like Dr. Maniu. Probably one of the best doctors I have had in my health care adventure. He was very thorough and treated me like we are equals not from on ""high"". I would like him as my PC! He explained everything so simply and completely.
- 5 out of 5 starsReviewed on 10/7/2025
This was my first visit with Dr. Maniu, as he is replacing [staff] (who retired). Dr. Maniu was very thorough as he acquainted himself with my case by interviewing me and by referral to my records (which he had in front of him). I appreciated his push to gain an overall view of not only my medical condition, but also my personal attitudes and priorities. He also provided a few specific and useful suggestions for my health related behaviors. I am extremely pleased that Dr. Maniu is now my primary cardiologist.
- 5 out of 5 starsReviewed on 10/6/2025
Dr. Maniu is a wonderful doctor. He is very thorough and caring towards patients.
- 5 out of 5 starsReviewed on 9/15/2025
Dr Maniu was competent, thorough and professional. He answered all my questions and addressed my concerns with tact and empathy.
- 5 out of 5 starsReviewed on 8/19/2025
Transfer from a retired doctor to new provider. New doctor was knowledgeable and concerned. Will need more contact with this provider to gather additional information.
- 5 out of 5 starsReviewed on 8/18/2025
He was fantastic.
- 5 out of 5 starsReviewed on 8/18/2025
This was the first appointment and he was very attentive to my condition. I was totally at ease after speaking to him.
- 5 out of 5 starsReviewed on 8/12/2025
MD gave advice about fu care
- 5 out of 5 starsReviewed on 8/11/2025
They were all very professional
- 5 out of 5 starsReviewed on 8/11/2025
He explained things well. Provided information I need In future