Terrence X. O'Brien, MD, MS, FACC
Cardiovascular Disease Physician · Charleston, SC
Terrence X. O'Brien, MD, MS, FACC is a cardiovascular disease physician with a practice address in Charleston, South Carolina, and NPI 1578671525, issued on Aug 29, 2006. Check the license (South Carolina 16785, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Terrence X. O'Brien
- Credential
- MD, MS, FACC
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 16785 SC
Self-reported in NPPES; status is on the state search - Practice location
- 135 Rutledge St Ste 1201, Charleston, SC 29425
- Phone
- (843) 792-2295
- Enumerated
- Aug 29, 2006
- Record last updated
- Oct 22, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (843) 792-7771
- Medicaid ID
- 167857 SC
- Medicare enrollment
- Enrolled (PECOS I20050308000335); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 1984
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 300 in South Carolina → Look up another NPI →
Verify Terrence X. O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 16785Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
2,151 Medicare Part D claims for 312 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Metoprolol Succinate296 claims
- Atorvastatin Calcium259 claims
- Eliquis235 claims
- Amlodipine Besylate94 claims
- Lisinopril78 claims
- Entresto75 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- University Medical Associates OF The Medical University OF South CarolCharleston, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Terrence X. O'Brien among 300 cardiovascular disease physician records in South Carolina
Terrence X. O'Brien, MD, MS, FACC is one of 300 cardiovascular disease physician records with a practice address in South Carolina. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 23% of them.
- NPI issued2006 · 23% of these records are older, 36% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1984 · median 1998 among the 208 with a school on file
- Record last updated2020 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in South Carolina
There are 300 cardiovascular disease physician records in South Carolina.
All 300 in South Carolina → Every provider in Charleston → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Joseph Gaddy, MDCharleston, SC 294251235100504
- Richard Gentzler, M.D.Charleston, SC 294251215904842
- James Glenn, MDCharleston, SC 294251164530010
- Kenneth Hanger, M.D., FAACCharleston, SC 294251992798235
- Robert Leman, MDCharleston, SC 294251912015959
- Julie Massey, MDCharleston, SC 294251073716668
- Pamela Morris, MDCharleston, SC 294251427166479
- Kristen Nawabi, M.D.Charleston, SC 294251497702047
Common questions
What is Terrence X. O'Brien, MD, MS, FACC's NPI number?
Terrence X. O'Brien, MD, MS, FACC's National Provider Identifier (NPI) is 1578671525, issued on Aug 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Terrence X. O'Brien, MD, MS, FACC located?
The NPPES record lists a practice address at 135 Rutledge St Ste 1201, Charleston, SC, 29425. Phone: (843) 792-2295. Providers update this record themselves, so call before visiting.
How can I verify Terrence X. O'Brien, MD, MS, FACC's license?
NPPES lists South Carolina license number 16785, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Terrence X. O'Brien, MD, MS, FACC prescribe under Medicare Part D?
In 2024, Terrence X. O'Brien, MD, MS, FACC had 2,151 Medicare Part D claims for 312 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.