William T. Halligan, M.D.
Cardiovascular Disease Physician · Greenville, SC
William T. Halligan, M.D. is a cardiovascular disease physician with a practice address in Greenville, South Carolina, and NPI 1255698163, issued on Apr 16, 2012. Check the license (South Carolina 39407, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William T. Halligan
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License numbers
- 39407 SC
LL39407 SC
Self-reported in NPPES; status is on the state search - Practice location
- 1005 Grove RD, Greenville, SC 29605
- Phone
- (864) 455-6900
- Enumerated
- Apr 16, 2012
- Record last updated
- May 7, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20191024002476); accepts Medicare assignment
- Medical or professional school
- Medical University Of South Carolina College Of Medicine, 2012
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 300 in South Carolina → Look up another NPI →
Also registered at 1005 Grove RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Armstrong, M.D.Cardiovascular Disease Physician1538518238
- Christopher Asuzu, MDCardiovascular Disease Physician1083110852
- Adam Barnett, M.D.Clinical Cardiac Electrophysiology Physician1770901068
- George Black, M.D.Clinical Cardiac Electrophysiology Physician1922427780
- Harold Blanks, MDCardiovascular Disease Physician1588640577
- Kemper Brand, PAPhysician Assistant1699195735
Verify William T. Halligan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 39407Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% more Medicare Part D claims than the average cardiovascular disease physician in 2024
3,712 Medicare Part D claims for 616 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
- Eliquis423 claims
- Metoprolol Succinate296 claims
- Rosuvastatin Calcium292 claims
- Atorvastatin Calcium278 claims
- Metoprolol Tartrate188 claims
- Carvedilol178 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.
Industry payments in 2024: $1,099.59
58 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Prisma Health University Medical GroupGreenville, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William T. Halligan among 300 cardiovascular disease physician records in South Carolina
William T. Halligan, M.D. 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 2012, is newer than 79% of them.
- NPI issued2012 · 79% of these records are older, 19% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2012 · median 1998 among the 208 with a school on file
- Record last updated2021 · 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 Greenville → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Jimmy Baucum, MDGreenville, SC 296051144206996
- Harold Blanks, MDGreenville, SC 296051588640577
- Archie Chandler, MDGreenville, SC 296051588640643
- John Erwin, M.D.Greenville, SC 296051396705158
- Jay Gaucher, MDGreenville, SC 296051164408225
- Craig Hudak, MDGreenville, SC 296051497731475
- Joseph Kmonicek, MDGreenville, SC 296051154387827
- Edward Lominack, MDGreenville, SC 296051396721445
Common questions
What is William T. Halligan, M.D.'s NPI number?
William T. Halligan, M.D.'s National Provider Identifier (NPI) is 1255698163, issued on Apr 16, 2012. An NPI identifies a provider in billing; it is not a license.
Where is William T. Halligan, M.D. located?
The NPPES record lists a practice address at 1005 Grove RD, Greenville, SC, 29605. Phone: (864) 455-6900. Providers update this record themselves, so call before visiting.
How can I verify William T. Halligan, M.D.'s license?
NPPES lists South Carolina license number 39407, 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 William T. Halligan, M.D. prescribe under Medicare Part D?
In 2024, William T. Halligan, M.D. had 3,712 Medicare Part D claims for 616 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.