Dr. Robert Grant Willis, MD
- Medicare services, 2024
- 13
- Medicare patients, 2024
- 28
- Part D claims, 2024
- 14
- Hospital affiliations
- 1
- Industry payments
- $5,129
- Practice address
- One St Francis Dr, Greenville, SC 29601
- Practice phone
- Call (800) 805-5678
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Willis' 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. Robert Grant Willis is a general surgeon in Greenville, South Carolina
Dr. Willis practices at Bon Secours St. Francis Downtown in Greenville, South Carolina, part of Bon Secours Mercy Health.
Dr. Willis' NPI, 1295268829, was assigned on April 11, 2017. Dr. Willis graduated from University of South Alabama College of Medicine in 2017. Dr. Willis holds North Carolina license 226854.
- NPI
- 1295268829NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9830476597
- NPI enumeration date
- April 11, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (800) 805-5678
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert Grant Willis practices at 2 locations in Greenville, South Carolina
Dr. Willis' primary practice is Bon Secours St. Francis Downtown, at One St Francis Dr, Greenville, SC 29601 in Greenville County. The practice phone is (800) 805-5678. Dr. Willis also practices at St Francis - Downtown, 1 St Francis Dr, Greenville, SC 29601.
- Bon Secours St. Francis DowntownPrimaryOne St Francis Dr, Greenville, SC 29601 · Greenville CountyPhone(800) 805-5678
- St Francis - Downtown1 St Francis Dr, Greenville, SC 29601 · Greenville CountyPhone(864) 255-1000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Robert Grant Willis is affiliated with 2 sites of care and 1 medical group
Dr. Willis' primary practice is Bon Secours St. Francis Downtown in Greenville, South Carolina, part of Bon Secours Mercy Health. The medical group on file is Bon Secours Medical Group Greenville Specialty Care. Dmand AI also links Dr. Willis to 1 more home health agency, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert Grant Willis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Willis practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bon Secours St. Francis Downtown | Available with a free account |
| +1 more affiliated site | 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 Bon Secours Mercy Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Robert Grant Willis is one of 506 general surgeons in South Carolina
Surgery is Dr. Willis' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Willis' licenses on file in 2 states: North Carolina and South Carolina.
Specialties and state licenses
- Surgery, North CarolinaPrimary
- Thoracic surgery (cardiothoracic vascular surgery), South Carolina
General surgeons near Dr. Willis
Counts of general surgeons 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. Robert Grant Willis billed Medicare for 13 services in 2024
CMS data shows 13 Medicare services from Dr. Willis across 1 procedure code in 2024, for 28 Medicare patients. Medicare paid $7,165 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Willis compared with the South Carolina median for general surgeons, 2024
- Dr. Willis
- South Carolina median
- Medicare services
- 13vs 26595% below
- Medicare patients
- 28vs 17884% below
- Part D claims
- 11vs 5480% below
Medians across 500 general surgeons in South Carolina with Dmand AI profiles that report each measure.
Dr. Willis' 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. Willis?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Willis and other general surgeons in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert Grant Willis treated 28 Medicare patients in 2024, average age 77
CMS counts 28 Medicare patients who saw Dr. Willis in 2024. The largest group is 75 to 84, with 13 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.26, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Willis' median patient age at 72, with 30% women.
Dr. Willis' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Willis' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease75%
- Arthritis64%
- Atrial fibrillation43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Willis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women30%
- Men70%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert Grant Willis wrote 14 Medicare Part D claims in 2024
In 2024, Dr. Willis wrote 14 Medicare Part D claims. 100% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $66 in total drug cost. In 2018, CMS named 60 claims across 4 drugs.
Dr. Willis' most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 602019: 1182%
Drugs named by CMS: 1 in 2019, 4 in 2018.
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. Robert Grant Willis ranks in the 89th percentile for coronary artery bypass graft (cabg) in Medicare
Dr. Willis accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 36 procedures of coronary artery bypass graft (cabg) by Dr. Willis, more than 89% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Willis ranks in Medicare procedure volume
- Coronary artery bypass graft (CABG)
- 89th percentile36 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Pacemaker insertion or repair: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 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
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Dr. Robert Grant Willis received $5,129 in industry payments from 2021 to 2025
CMS Open Payments shows 73 general payments to Dr. Willis from 13 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 55% of the total. Medtronic, Inc. paid the most, $2,481.
General payments to Dr. Willis by program year, 2021 to 2025
General payments to Dr. Willis by kind, 2021 to 2025
- Food and beverage$2,80155%
- Travel and lodging$2,32945%
Companies that paid Dr. Willis the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert Grant Willis graduated from University of South Alabama College of Medicine
Dr. Willis graduated from University of South Alabama College of Medicine in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert Grant Willis'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Robert Grant Willis
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. Robert Grant Willis' NPI number?
Dr. Robert Grant Willis' NPI number is 1295268829. It was assigned on April 11, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Grant Willis?
Dr. Robert Grant Willis is a general surgeon in Greenville, South Carolina. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Robert Grant Willis practice?
Dr. Willis practices at One St Francis Dr, Greenville, SC 29601. Dr. Willis also practices at 1 St Francis Dr, Greenville, SC 29601. Dr. Willis' primary practice is Bon Secours St. Francis Downtown in Greenville, South Carolina, part of Bon Secours Mercy Health. Dmand AI also links Dr. Willis to 1 home health agency.
What is Dr. Robert Grant Willis' office phone number?
The practice phone on file for Dr. Willis is (800) 805-5678.
What is Dr. Robert Grant Willis' medical license number?
Dr. Willis holds North Carolina license 226854, one of the licenses on file in 2 states.
Which states has Dr. Robert Grant Willis been licensed in?
Dmand AI has state licenses on file for Dr. Willis in North Carolina and South Carolina.
Which hospitals is Dr. Robert Grant Willis affiliated with?
Dr. Willis practices at Bon Secours St. Francis Downtown in Greenville, South Carolina.
What medical group is Dr. Robert Grant Willis part of?
Dr. Willis is linked to Bon Secours Medical Group Greenville Specialty Care.
Does Dr. Robert Grant Willis accept Medicare?
Yes. CMS data shows Dr. Willis billed Medicare for 13 services in 2024, and Dr. Willis accepts Medicare assignment.
How many Medicare patients does Dr. Robert Grant Willis see?
CMS counts 28 Medicare patients who saw Dr. Willis in 2024, with an average age of 77.
Show 5 more questionsShow fewer questions
What services does Dr. Robert Grant Willis bill to Medicare?
In 2024, Dr. Willis' most billed Medicare services were surgery: heart and blood vessels (33361).
Where did Dr. Robert Grant Willis go to medical school?
Dr. Willis graduated from University of South Alabama College of Medicine in 2017.
What drugs does Dr. Robert Grant Willis prescribe most?
In 2019 Medicare Part D data, Dr. Willis' most prescribed drugs by claims were Oxycodone HCl.
Has Dr. Robert Grant Willis received payments from drug or device companies?
CMS Open Payments shows $5,129 in general payments to Dr. Willis from 13 companies from 2021 to 2025. The largest total came from Medtronic, Inc.
How long has Dr. Robert Grant Willis been practicing?
Dr. Willis graduated from medical school in 2017, 9 years ago.
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