NPPES file of Aug 9, 2026

Aaron David Tolan, M.D.

Internal Medicine Physician · Clemson, SC

Aaron David Tolan, M.D. is an internal medicine physician with a practice address in Clemson, South Carolina, and NPI 1881909596, issued on Aug 18, 2010. Check the license (South Carolina 84139, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1881909596
Name
Aaron David Tolan
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
84139 SC
4301096993 MI
Self-reported in NPPES; status is on the state search
Practice location
101 Chapman Hill RD, Clemson, SC 29631
Phone
(864) 653-4071
Enumerated
Aug 18, 2010
Record last updated
May 11, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(864) 653-4074
Medicare enrollment
Enrolled (PECOS I20200720003579); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 101 Chapman Hill RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Carrie AndersonSpeech-Language Pathologist1477082055
  2. Erin Cleveland, DPTPhysical Therapist1386202893
  3. Gopi Dandamudi, MDClinical Cardiac Electrophysiology Physician1356500946
  4. Kenneth Felder, PT, DPTPhysical Therapist1598294787
  5. Shannon GallowayNeurology Physical Therapist1093267403
  6. Stephanie Hoppe, AGACNP-BCAcute Care Nurse Practitioner1114771664

Verify Aaron David Tolan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
    Search for license 84139
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the South Carolina license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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5% more Medicare Part D claims than the average internal medicine physician in 2024

3,322 Medicare Part D claims for 251 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Aaron Tolan3,322
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium278 claims
  2. Rosuvastatin Calcium129 claims
  3. Amlodipine Besylate124 claims
  4. Levothyroxine Sodium118 claims
  5. Pantoprazole Sodium102 claims
  6. Losartan Potassium96 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: $1,794.89

103 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.

  1. Aaron Tolan$1,794.89
  2. Specialty average$1,303.06

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

  1. Prisma Health University Medical GroupClemson, SC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Aaron David Tolan among 1,881 internal medicine physician records in South Carolina

Aaron David Tolan, M.D. 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 2010, is newer than 51% of them.

  • NPI issued2010 · 51% of these records are older, 47% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2010 · median 2006 among the 1,119 with a school on file
  • Record last updated2021 · 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).

5 internal medicine physician records list a practice address in Clemson

They are 5 of the 369 NPPES records with a practice address in Clemson, and 1,881 internal medicine physician records in South Carolina.

The 8 internal medicine physician records with the nearest ZIP codes

  1. William Bedingfield, MDClemson, SC 296311598764524
  2. David Liebman, MDClemson, SC 296311649234261
  3. Christopher Miles, MDClemson, SC 296311366000325
  4. Nardine Smoak, MDClemson, SC 296311295362903
  5. David Budhoo, M.D.Anderson, SC 296251821251240
  6. Stuart Barnes, MDAnderson, SC 296241114106325
  7. William Anderson, M.D.Easley, SC 296401831148667
  8. Roger Boatwright, M.D.Easley, SC 296401386628071

Common questions

What is Aaron David Tolan, M.D.'s NPI number?

Aaron David Tolan, M.D.'s National Provider Identifier (NPI) is 1881909596, issued on Aug 18, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Aaron David Tolan, M.D. located?

The NPPES record lists a practice address at 101 Chapman Hill RD, Clemson, SC, 29631. Phone: (864) 653-4071. Providers update this record themselves, so call before visiting.

How can I verify Aaron David Tolan, M.D.'s license?

NPPES lists South Carolina license number 84139, 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 Aaron David Tolan, M.D. prescribe under Medicare Part D?

In 2024, Aaron David Tolan, M.D. had 3,322 Medicare Part D claims for 251 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.