Dr. Aaron David Tolan, MD
- Medicare services, 2024
- 1,422
- Medicare patients, 2024
- 156
- Part D claims, 2024
- 3,322
- Publications
- 1
- Hospital affiliations
- 3
- Practice address
- 101 Chapman Hill Rd Suite 101 Suite 101, Clemson, SC 29631-2194
- Practice phone
- Call (864) 455-6900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Umg Easley
Multi-specialty group site · Clemson, South Carolina
Find Dr. Tolan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Aaron David Tolan is an internist in Clemson, South Carolina
Dr. Tolan practices at Umg Easley in Clemson, South Carolina.
Dr. Tolan's NPI, 1881909596, was assigned on August 18, 2010. Dr. Tolan graduated from East Tennessee State University James H. Quillen College of Medicine in 2010. Dr. Tolan's South Carolina license number on file is 84139.
- NPI
- 1881909596NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406081371
- NPI enumeration date
- August 18, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (864) 455-6900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Aaron David Tolan practices at Umg Easley in Clemson, South Carolina
Dr. Tolan's primary practice is Umg Easley, at 101 Chapman Hill Rd Suite 101 Suite 101, Clemson, SC 29631-2194. The practice phone is (864) 455-6900.
- Umg Easley101 Chapman Hill Rd Suite 101 Suite 101, Clemson, SC 29631-2194Phone(864) 455-6900
Source: Dmand AI Affiliation Data
Dr. Aaron David Tolan is affiliated with 5 sites of care and 1 medical group
Dr. Tolan's primary practice is Umg Easley in Clemson, South Carolina. Dr. Tolan is also affiliated with Prisma Health Greenville Memorial Hospital. The medical group on file is Prisma Health Medical Group. Dmand AI also links Dr. Tolan to 2 more hospitals and 1 home health agency, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Aaron David Tolan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tolan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Umg Easley | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Aaron David Tolan is one of 1,707 internists in South Carolina
Internal medicine is Dr. Tolan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Tolan is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Tolan's licenses on file in 2 states: South Carolina and Michigan.
Specialties and state licenses
- Internal medicine, South CarolinaPrimary
- Pediatrics, Michigan
Clinical focus
Dmand AI lists acid reflux, acute kidney failure, acute sinusitis, acute skin infection, aneurysm, ankle or foot injury, anxiety and arthritis among the conditions Dr. Tolan treats.
Internists near Dr. Tolan
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Aaron David Tolan billed Medicare for 1,422 services in 2024
CMS data shows 1,422 Medicare services from Dr. Tolan across 18 procedure codes in 2024, for 156 Medicare patients. Medicare paid $79,683 for them. Every service was in an office.
Dr. Tolan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6182024: 96356%
- Other services
- 2023: 1672024: 1797%
- Tests and treatments
- 2023: 882024: 9710%
- Lab and pathology
- 2023: 932024: 876%
- Surgery
- 2023: 02024: 76
- Imaging
- 2023: 152024: 2033%
Dr. Tolan compared with the South Carolina median for internists, 2024
- Dr. Tolan
- South Carolina median
- Medicare services
- 1,422vs 74092% above
- Medicare patients
- 156vs 25840% below
- Part D claims
- 2,684vs 3318.1 times
Medians across 1,708 internists in South Carolina with Dmand AI profiles that report each measure.
Dr. Tolan's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Tolan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tolan and other internists in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Aaron David Tolan treated 156 Medicare patients in 2024, average age 74
CMS counts 156 Medicare patients who saw Dr. Tolan in 2024. The largest group is 65 to 74, with 69 patients. 72% of them have high blood pressure, and 62% have high cholesterol. Their average risk score is 1.12, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Tolan's median patient age at 34, with 49% women.
Dr. Tolan's Medicare patients by age, 2024
Dr. Tolan's Medicare patients by sex, 2024
- Women8454%
- Men7246%
Chronic conditions among Dr. Tolan's Medicare patients, 2024
- High blood pressure72%
- High cholesterol62%
- Arthritis46%
- Mood disorders29%
- Anxiety28%
- Depression28%
- Chronic kidney disease25%
- Diabetes23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tolan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 34
Patient panel by sex, all payers
- Women49%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Aaron David Tolan wrote 3,322 Medicare Part D claims in 2024
In 2024, Dr. Tolan wrote 3,322 Medicare Part D claims for 251 patients. 84% of them were for generic drugs. CMS names the drug for 2,684 of them, across 75 drugs with 11 or more claims each, at $339,353 in total drug cost. In 2023, CMS named 2,957 claims across 83 drugs.
Dr. Tolan's Part D claims by kind of drug, 2024
- Generic2,805 claims84%
- Brand-name506 claims15%
- Other11 claims0%
Dr. Tolan's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Tolan's Part D claims, 2024
- Antibiotics2%59 of 3,322 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,9572024: 2,6849%
Drugs named by CMS: 75 in 2024, 83 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Aaron David Tolan offers telehealth to Medicare patients
Dr. Tolan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Tolan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Aaron David Tolan has 1 publication on record
Dmand AI links 1 paper to Dr. Tolan in 2015. Dr. Tolan's most frequent co-authors are Darryl A. Elmouchi, MD and Carlos E. Tavera, MD.
Dr. Tolan's most frequent co-authors
Recent publications by Dr. Tolan
See who Dr. Tolan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tolan works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Aaron David Tolan received $8,224 in industry payments from 2016 to 2025
CMS Open Payments shows 509 general payments to Dr. Tolan from 55 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $1,714.
General payments to Dr. Tolan by program year, 2016 to 2025
Companies that paid Dr. Tolan the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Aaron David Tolan graduated from East Tennessee State University James H. Quillen College of Medicine
Dr. Tolan graduated from East Tennessee State University James H. Quillen College of Medicine in 2010.
- Medical school
- Board certified in internal medicine
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Aaron David Tolan accepts plans from 18 insurance carriers
Dr. Tolan is in network with 18 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Excellus BlueCross BlueShield
- United Healthcare
- Blue Cross Blue Shield of Michigan
- HCSC
- Molina
- Aspirus Health Plan
- +10 more carriersWith a free account
Plan types Dr. Tolan accepts, by number of carriers
- PPO12
- Medicare10
- HMO8
- EPO5
- POS5
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Aaron David Tolan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Aaron David Tolan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Aaron David Tolan's NPI number?
Dr. Aaron David Tolan's NPI number is 1881909596. It was assigned on August 18, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Aaron David Tolan?
Dr. Aaron David Tolan is an internist in Clemson, South Carolina. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Aaron David Tolan practice?
Dr. Tolan practices at 101 Chapman Hill Rd Suite 101 Suite 101, Clemson, SC 29631-2194. Dr. Tolan's primary practice is Umg Easley in Clemson, South Carolina. Dmand AI also links Dr. Tolan to 2 hospitals and 1 home health agency.
What is Dr. Aaron David Tolan's office phone number?
The practice phone on file for Dr. Tolan is (864) 455-6900.
What is Dr. Aaron David Tolan's medical license number?
Dr. Tolan's South Carolina license number on file is 84139, one of the licenses on file in 2 states.
Which states has Dr. Aaron David Tolan been licensed in?
Dmand AI has state licenses on file for Dr. Tolan in South Carolina (2020 to 2025) and Michigan (2013 to 2023).
Which hospitals is Dr. Aaron David Tolan affiliated with?
Dr. Tolan is affiliated with Prisma Health Greenville Memorial Hospital. Dmand AI links Dr. Tolan to 2 more hospitals.
What medical group is Dr. Aaron David Tolan part of?
Dr. Tolan is linked to Prisma Health Medical Group.
Does Dr. Aaron David Tolan accept Medicare?
Yes. CMS data shows Dr. Tolan billed Medicare for 1,422 services in 2024, and Dr. Tolan accepts Medicare assignment.
Does Dr. Aaron David Tolan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Tolan as offering telehealth services.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Aaron David Tolan see?
CMS counts 156 Medicare patients who saw Dr. Tolan in 2024, with an average age of 74.
Is Dr. Aaron David Tolan board certified?
Yes. Dr. Tolan is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Aaron David Tolan bill to Medicare?
In 2024, Dr. Tolan's most billed Medicare services were office visit, established patient (99214), care management and other visits (99490) and medicare service (G0439).
Where did Dr. Aaron David Tolan go to medical school?
Dr. Tolan graduated from East Tennessee State University James H. Quillen College of Medicine in 2010.
What drugs does Dr. Aaron David Tolan prescribe most?
In 2024 Medicare Part D data, Dr. Tolan's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Amlodipine Besylate.
Has Dr. Aaron David Tolan received payments from drug or device companies?
CMS Open Payments shows $8,224 in general payments to Dr. Tolan from 55 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Aaron David Tolan been practicing?
Dr. Tolan graduated from medical school in 2010, 16 years ago.
Does Dr. Aaron David Tolan do research?
Dmand AI links 1 publication to Dr. Tolan.
Who does Dr. Aaron David Tolan publish with?
Dr. Tolan's most frequent co-authors are Darryl A. Elmouchi, MD (1 shared paper) and Carlos E. Tavera, MD (1 shared paper).
What insurance does Dr. Aaron David Tolan accept?
Dr. Tolan is in network with 18 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
Selling to internal medicine practices?
See internists in South Carolina by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card