Dr. Calvin E. Atwell, MD
- Medicare services, 2024
- 708
- Medicare patients, 2024
- 468
- Part D claims, 2024
- 232
- Hospital affiliations
- 5
- Industry payments
- $14,404
- Practice address
- 801 Illini Dr, Silvis, IL 61282
- Practice phone
- Call (309) 281-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Atwell'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. Calvin E. Atwell is a general surgeon in Silvis, Illinois
Dr. Atwell practices at MercyOne Genesis Silvis Medical Center in Silvis, Illinois, part of Trinity Health.
Dr. Atwell's NPI, 1972574028, was assigned on January 27, 2006. Dr. Atwell holds Illinois license 036079520.
- NPI
- 1972574028NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7214824143
- NPI enumeration date
- January 27, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (309) 281-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Calvin E. Atwell practices at MercyOne Genesis Silvis Medical Center in Silvis, Illinois
Dr. Atwell's primary practice is MercyOne Genesis Silvis Medical Center, at 801 Illini Dr, Silvis, IL 61282 in Rock Island County. The practice phone is (309) 281-4000.
- MercyOne Genesis Silvis Medical Center801 Illini Dr, Silvis, IL 61282 · Rock Island CountyPhone(309) 281-4000
Source: Dmand AI Affiliation Data
Dr. Calvin E. Atwell is affiliated with 7 sites of care and 6 medical groups
Dr. Atwell's primary practice is MercyOne Genesis Silvis Medical Center in Silvis, Illinois, part of Trinity Health. Dr. Atwell is also affiliated with MercyOne Genesis Davenport Medical Center. The medical group on file is Genesis Health System. Dmand AI also links Dr. Atwell to 3 more hospitals, 5 medical groups and 2 group practices and clinics, each named with a free account. Dr. Atwell's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Calvin E. Atwell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Atwell practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MercyOne Genesis Silvis Medical Center | Available with a free account |
| +6 more sites and 5 medical groups | 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 Trinity Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Calvin E. Atwell is one of 1,217 general surgeons in Illinois
Surgery is Dr. Atwell's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Atwell is licensed in Illinois.
Specialties and state licenses
- Surgery, IllinoisPrimary
General surgeons near Dr. Atwell
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. Calvin E. Atwell billed Medicare for 708 services in 2024
CMS data shows 708 Medicare services from Dr. Atwell across 20 procedure codes in 2024, for 468 Medicare patients. Medicare paid $79,139 for them.
Dr. Atwell's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4972024: 33932%
- Surgery
- 2023: 2992024: 2903%
- Other services
- 2023: 302024: 79163%
- Imaging
- 2023: 152024: 0100%
Where Dr. Atwell's Medicare services took place, 2024
- In an office16523%
- In a facility54377%
Dr. Atwell compared with the Illinois median for general surgeons, 2024
- Dr. Atwell
- Illinois median
- Medicare services
- 708vs 1943.6 times
- Medicare patients
- 468vs 1443.3 times
- Part D claims
- 122vs 284.4 times
Medians across 1,031 general surgeons in Illinois with Dmand AI profiles that report each measure.
Dr. Atwell'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. Atwell?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Atwell and other general surgeons in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Calvin E. Atwell treated 468 Medicare patients in 2024, average age 74
CMS counts 468 Medicare patients who saw Dr. Atwell in 2024. The largest group is 65 to 74, with 228 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.40, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Atwell's median patient age at 66, with 47% women.
Dr. Atwell's Medicare patients by age, 2024
Dr. Atwell's Medicare patients by sex, 2024
- Women22247%
- Men24653%
Chronic conditions among Dr. Atwell's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis48%
- Diabetes33%
- Chronic kidney disease32%
- Ischemic heart disease32%
- COPD26%
- Mood disorders25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Atwell's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women47%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Calvin E. Atwell wrote 232 Medicare Part D claims in 2024
In 2024, Dr. Atwell wrote 232 Medicare Part D claims for 149 patients. 97% of them were for generic drugs. CMS names the drug for 122 of them, across 2 drugs with 11 or more claims each, at $696 in total drug cost. In 2023, CMS named 156 claims across 2 drugs.
Dr. Atwell's Part D claims by kind of drug, 2024
- Generic226 claims97%
- Brand-name and other6 claims3%
Dr. Atwell'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. Atwell's Part D claims, 2024
- Opioids37%86 of 232 claims
- Antibiotics19%43 of 232 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: 1562024: 12222%
Drugs named by CMS: 2 in 2024, 2 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. Calvin E. Atwell ranks in the 93rd percentile for colonoscopy in Medicare
Dr. Atwell accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 198 procedures of colonoscopy by Dr. Atwell, more than 93% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Atwell ranks in Medicare procedure volume
- Colonoscopy
- 93rd percentile198 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 82nd percentile129 procedures
- Melanoma (skin cancer) excision
- 64th percentile11 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Removal of skin lesions: 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
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Calvin E. Atwell received $14,404 in industry payments from 2016 to 2024
CMS Open Payments shows 64 general payments to Dr. Atwell from 12 drug and device companies from 2016 to 2024. Education make up the largest share, 69% of the total. Intuitive Surgical, Inc. paid the most, $13,346.
General payments to Dr. Atwell by program year, 2016 to 2024
General payments to Dr. Atwell by kind, 2016 to 2024
- Education$10,00069%
- Food and beverage$2,28316%
- Travel and lodging$2,12215%
Companies that paid Dr. Atwell the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Calvin E. Atwell'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 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) |
| 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. Calvin E. Atwell
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. Calvin E. Atwell's NPI number?
Dr. Calvin E. Atwell's NPI number is 1972574028. It was assigned on January 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Calvin E. Atwell?
Dr. Calvin E. Atwell is a general surgeon in Silvis, Illinois. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Calvin E. Atwell practice?
Dr. Atwell practices at 801 Illini Dr, Silvis, IL 61282. Dr. Atwell's primary practice is MercyOne Genesis Silvis Medical Center in Silvis, Illinois, part of Trinity Health. Dmand AI also links Dr. Atwell to 3 hospitals, 5 medical groups and 2 group practices and clinics.
What is Dr. Calvin E. Atwell's office phone number?
The practice phone on file for Dr. Atwell is (309) 281-4000.
What is Dr. Calvin E. Atwell's medical license number?
Dr. Atwell holds Illinois license 036079520.
Which hospitals is Dr. Calvin E. Atwell affiliated with?
Dr. Atwell practices at MercyOne Genesis Silvis Medical Center in Silvis, Illinois. Dr. Atwell is also affiliated with MercyOne Genesis Davenport Medical Center. Dmand AI links Dr. Atwell to 3 more hospitals.
What medical group is Dr. Calvin E. Atwell part of?
Dr. Atwell is linked to Genesis Health System. Dmand AI links Dr. Atwell to 5 more medical groups.
Does Dr. Calvin E. Atwell accept Medicare?
Yes. CMS data shows Dr. Atwell billed Medicare for 708 services in 2024, and Dr. Atwell accepts Medicare assignment.
How many Medicare patients does Dr. Calvin E. Atwell see?
CMS counts 468 Medicare patients who saw Dr. Atwell in 2024, with an average age of 74.
What services does Dr. Calvin E. Atwell bill to Medicare?
In 2024, Dr. Atwell's most billed Medicare services were surgery: digestive system (43239), surgery: digestive system (45385) and hospital inpatient care (99222).
Show 3 more questionsShow fewer questions
What drugs does Dr. Calvin E. Atwell prescribe most?
In 2024 Medicare Part D data, Dr. Atwell's most prescribed drugs by claims were Hydrocodone-Acetaminophen and Omeprazole.
Has Dr. Calvin E. Atwell received payments from drug or device companies?
CMS Open Payments shows $14,404 in general payments to Dr. Atwell from 12 companies from 2016 to 2024. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Calvin E. Atwell been practicing?
Dr. Atwell graduated from medical school in 1981, 45 years ago.
Selling to surgery practices?
See general surgeons in Illinois 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