Physician Profile
Unclaimed ProfileAbout O'BRIEN
Terrence X O'Brien, MD, MS, FACC practices cardiovascular disease (cardiology) in Charleston, SC. Terrence is a 1984 graduate of University of California, San Diego School of Medicine. Terrence is also listed as specializing in cardiovascular disease. Medicare claims data shows Terrence provided 1,800 services to 1,606 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (843) 792-2295
- Email not available
Practice Locations
135 RUTLEDGE ST STE 1201
Charleston, SC 29425
Procedures Most Often Billed to Medicare
1,800 services · 1,606 patients · 23 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
502 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
209 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
117 |
| Heart muscle strain imaging | Treatment | 93356 |
60 |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | Treatment | 93325 |
42 |
| Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report | Treatment | 93351 |
38 |
| Ultrasound of heart blood flow, valves and chambers | Treatment | 93320 |
36 |
| Heart muscle strain imaging | Treatment | 93356 |
29 |
| Ultrasound of heart, follow-up | Treatment | 93308 |
26 |
| Heart rhythm recording continous external ekg over more than 48 hours up to 7 days | Treatment | 93242 |
16 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other cardiovascular diseases in Charleston 8
Same specialty, same city.
Trained at University of California, San Diego School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1984 at University of California, San Diego School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 8
Providers in SC who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. O'Brien?
Dr. O'Brien is a cardiovascular disease (cardiology) in Charleston, SC. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CARDIOVASCULAR DISEASE (CARDIOLOGY)”.
NPI registry
What is Dr. O'Brien's address?
Dr. O'Brien is listed at 135 RUTLEDGE ST STE 1201, Charleston, SC 29425. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. O'Brien?
The number on file is (843) 792-2295. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. O'Brien?
Dr. O'Brien's National Provider Identifier is 1578671525. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. O'Brien train?
Dr. O'Brien attended University of California, San Diego School of Medicine, graduating in 1984. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. O'Brien have?
Dr. O'Brien has 42 years experience. Calculated from a graduation year of 1984, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. O'Brien perform?
According to Medicare billing data, Dr. O'Brien provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and ultrasound of heart with color-depicted blood flow, rate, direction and valve function, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. O'Brien's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. O'Brien. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.