William T. Besson, MD INTERNAL MEDICINE
Internal Medicine Physician · Aiken, SC
William T. Besson, MD INTERNAL MEDICINE is an internal medicine physician with a practice address in Aiken, South Carolina, and NPI 1790862753, issued on Nov 1, 2006. Check the license (South Carolina 15780, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William T. Besson
- Credential
- MD INTERNAL MEDICINE
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 15780 SC
Self-reported in NPPES; status is on the state search - Practice location
- 410 University Pkwy, Aiken, SC 29801
- Phone
- (803) 648-7888
- Enumerated
- Nov 1, 2006
- Record last updated
- Sep 30, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (803) 648-3302
- Medicaid ID
- 157804 SC
- Medicare enrollment
- Enrolled (PECOS I20070806000565); accepts Medicare assignment
- Medical or professional school
- University Of South Carolina School Of Medicine, 1989
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,881 in South Carolina → Look up another NPI →
Also registered at 410 University Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William T. Besson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 15780Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.7 times the Medicare Part D claims of the average internal medicine physician in 2024
15,045 Medicare Part D claims for 1,081 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 288 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium755 claims
- Amlodipine Besylate722 claims
- Levothyroxine Sodium715 claims
- Losartan Potassium562 claims
- Atorvastatin Calcium545 claims
- Hydrochlorothiazide345 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: $813.66
45 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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 2 group practices
- Aiken Internal Med PAAiken, SC
- Aiken Regional Medical Centers LLCAiken, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William T. Besson among 1,881 internal medicine physician records in South Carolina
William T. Besson, MD INTERNAL MEDICINE is one of 1,881 internal medicine physician records with a practice address in South Carolina. 81% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 58% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1989 · median 2006 among the 1,119 with a school on file
- Record last updated2010 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
29 internal medicine physician records list a practice address in Aiken
They are 29 of the 1,385 NPPES records with a practice address in Aiken, and 1,881 internal medicine physician records in South Carolina.
All 1,881 in South Carolina → Every provider in Aiken → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Alaa AlkhatibAiken, SC 298011861165011
- Walker BarmoreAiken, SC 298011881257152
- Jordan DawseyAiken, SC 298011992419170
- Asif Hashmi, MD FACPAiken, SC 298011407959976
- Jose Hermann, MDAiken, SC 298011174218325
- Shayan Mahapatra, MDAiken, SC 298011730718743
- Holly Martinez De Andino, RNAiken, SC 298011528498789
- Kate Mayes, MDAiken, SC 298011073611893
Common questions
What is William T. Besson, MD INTERNAL MEDICINE's NPI number?
William T. Besson, MD INTERNAL MEDICINE's National Provider Identifier (NPI) is 1790862753, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William T. Besson, MD INTERNAL MEDICINE located?
The NPPES record lists a practice address at 410 University Pkwy, Aiken, SC, 29801. Phone: (803) 648-7888. Providers update this record themselves, so call before visiting.
How can I verify William T. Besson, MD INTERNAL MEDICINE's license?
NPPES lists South Carolina license number 15780, 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. Besson, MD INTERNAL MEDICINE prescribe under Medicare Part D?
In 2024, William T. Besson, MD INTERNAL MEDICINE had 15,045 Medicare Part D claims for 1,081 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.