Terrence O'Brien, MD, MS, FACC
NPI 1578671525 · Cardiovascular Disease Physician · Charleston, SC
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Terrence O'Brien, MD, MS, FACC is a Cardiovascular Disease Physician provider in Charleston, SC (NPI 1578671525).
Provider details
- NPI number
- 1578671525
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MS, FACC
- Sex
- Male
- Sole proprietor
- No
- License
- 16785 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,800 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 502 | $13 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 415 | $119 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 209 | $64 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 117 | $179 |
| Heart Muscle Strain Imaging93356 | 60 | $34 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 296 | 98 |
| Atorvastatin Calcium | 259 | 73 |
| Apixabanbrand: Eliquis | 235 | 53 |
| Amlodipine Besylate | 94 | 30 |
| Lisinopril | 78 | 22 |
| Rosuvastatin Calcium | 75 | 25 |
| Sacubitril/Valsartan |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-29
- Last updated
- 2020-10-22
- Certified
- 2020-10-22
Frequently asked questions
- What is Terrence O'Brien's NPI number?
- Terrence O'Brien's National Provider Identifier (NPI) is 1578671525, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Terrence O'Brien's specialty?
- Terrence O'Brien is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Terrence O'Brien located?
- Terrence O'Brien's practice location on file with NPPES is 135 Rutledge St Ste 1201, Charleston, SC 29425-8903.
- What is Terrence O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Terrence O'Brien is (843) 792-2295.
- Does Terrence O'Brien accept Medicare?
- Terrence O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Terrence O'Brien's NPI active?
- Yes — Terrence O'Brien's NPI (1578671525) is active in the NPPES registry as of the last update on 2020-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.