Dr. Sean David McWilliams, MD
- Medicare services, 2024
- 687
- Medicare patients, 2024
- 109
- Part D claims, 2024
- 23
- Industry payments
- $146,490
- Affiliated sites
- 2
- Practice address
- 777 Oakmont Ln, Westmont, IL 60559
- Practice phone
- Call (630) 413-4490
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Salt Creek Medical Imaging
Imaging Center - Main Location · Westmont, Illinois
Find Dr. McWilliams' 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. Sean David McWilliams is a phlebology physician in Westmont, Illinois
Dr. McWilliams practices at Salt Creek Medical Imaging in Westmont, Illinois.
Dr. McWilliams' NPI, 1356323398, was assigned on November 16, 2005. Dr. McWilliams holds Illinois license 036096961.
- NPI
- 1356323398NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628059094
- NPI enumeration date
- November 16, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (630) 413-4490
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sean David McWilliams practices at Salt Creek Medical Imaging in Westmont, Illinois
Dr. McWilliams' primary practice is Salt Creek Medical Imaging, at 777 Oakmont Ln, Westmont, IL 60559. The practice phone is (630) 413-4490.
- Salt Creek Medical Imaging777 Oakmont Ln, Westmont, IL 60559Phone(630) 413-4490
Source: Dmand AI Affiliation Data
Dr. Sean David McWilliams is affiliated with 2 sites of care
Dr. McWilliams' primary practice is Salt Creek Medical Imaging in Westmont, Illinois. Dmand AI also links Dr. McWilliams to 1 physician office, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Sean David McWilliams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. McWilliams practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Salt Creek Medical Imaging | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Sean David McWilliams is one of 16 phlebology physicians in Illinois
Phlebology is Dr. McWilliams' primary specialty in the NPI Registry, under taxonomy code 202K00000X. Dmand AI has Dr. McWilliams' licenses on file in 2 states: Illinois and Indiana.
Specialties and state licenses
- Phlebology, IllinoisPrimary
- Indiana license
Phlebology physicians near Dr. McWilliams
Counts of phlebology physicians 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. Sean David McWilliams billed Medicare for 687 services in 2024
CMS data shows 687 Medicare services from Dr. McWilliams across 12 procedure codes in 2024, for 109 Medicare patients. Medicare paid $179,630 for them. Every service was in an office.
Dr. McWilliams' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 3732024: 26030%
- Tests and treatments
- 2023: 3602024: 16953%
- Office and hospital visits
- 2023: 2542024: 13148%
- Imaging
- 2023: 1462024: 12713%
Dr. McWilliams compared with the Illinois median for phlebology physicians, 2024
- Dr. McWilliams
- Illinois median
- Medicare services
- 687vs 46249% above
- Medicare patients
- 109vs 8922% above
Medians across 16 phlebology physicians in Illinois with Dmand AI profiles that report each measure.
Dr. McWilliams' 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. McWilliams?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. McWilliams and other phlebology physicians in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sean David McWilliams treated 109 Medicare patients in 2024, average age 74
CMS counts 109 Medicare patients who saw Dr. McWilliams in 2024. The largest group is 65 to 74, with 57 patients. 74% of them have high cholesterol, and 57% have high blood pressure. Their average risk score is 0.76, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. McWilliams' median patient age at 61, with 75% women.
Dr. McWilliams' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. McWilliams' Medicare patients by sex, 2024
- Women8679%
- Men2321%
Chronic conditions among Dr. McWilliams' Medicare patients, 2024
- High cholesterol74%
- High blood pressure57%
- Arthritis47%
- Anxiety23%
- Ischemic heart disease19%
- Osteoporosis19%
- Diabetes18%
- Mood disorders17%
Share of Medicare patients with each condition. A patient can have several.
Dr. McWilliams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women75%
- Men24%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sean David McWilliams wrote 23 Medicare Part D claims in 2024
In 2024, Dr. McWilliams wrote 23 Medicare Part D claims. 100% of them were for generic drugs.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Sean David McWilliams ranks in the 98th percentile for varicose vein removal in Medicare
Dr. McWilliams accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 598 procedures of varicose vein removal by Dr. McWilliams, more than 98% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. McWilliams ranks in Medicare procedure volume
- Varicose vein removal
- 98th percentile598 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
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. Sean David McWilliams received $146,490 in industry payments from 2016 to 2025
CMS Open Payments shows 113 general payments to Dr. McWilliams from 10 drug and device companies from 2016 to 2025. Device or supply loans make up the largest share, 48% of the total. AngioDynamics, Inc. paid the most, $144,672.
General payments to Dr. McWilliams by program year, 2016 to 2025
General payments to Dr. McWilliams by kind, 2016 to 2025
- Device or supply loans$69,60048%
- Debt forgiveness$46,22032%
- Education$28,77320%
- Food and beverage$1,8961%
Companies that paid Dr. McWilliams the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Sean David McWilliams'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 (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. Sean David McWilliams
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. Sean David McWilliams' NPI number?
Dr. Sean David McWilliams' NPI number is 1356323398. It was assigned on November 16, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Sean David McWilliams?
Dr. Sean David McWilliams is a phlebology physician in Westmont, Illinois. The primary specialty in the NPI Registry is Phlebology Physician (taxonomy code 202K00000X).
Where does Dr. Sean David McWilliams practice?
Dr. McWilliams practices at 777 Oakmont Ln, Westmont, IL 60559. Dr. McWilliams' primary practice is Salt Creek Medical Imaging in Westmont, Illinois. Dmand AI also links Dr. McWilliams to 1 physician office.
What is Dr. Sean David McWilliams' office phone number?
The practice phone on file for Dr. McWilliams is (630) 413-4490.
What is Dr. Sean David McWilliams' medical license number?
Dr. McWilliams holds Illinois license 036096961, one of the licenses on file in 2 states.
Which states has Dr. Sean David McWilliams been licensed in?
Dmand AI has state licenses on file for Dr. McWilliams in Illinois and Indiana.
Does Dr. Sean David McWilliams accept Medicare?
Yes. CMS data shows Dr. McWilliams billed Medicare for 687 services in 2024, and Dr. McWilliams accepts Medicare assignment.
How many Medicare patients does Dr. Sean David McWilliams see?
CMS counts 109 Medicare patients who saw Dr. McWilliams in 2024, with an average age of 74.
What services does Dr. Sean David McWilliams bill to Medicare?
In 2024, Dr. McWilliams' most billed Medicare services were ultrasound (76942), blood vessel study (93970) and surgery: heart and blood vessels (36471).
Has Dr. Sean David McWilliams received payments from drug or device companies?
CMS Open Payments shows $146,490 in general payments to Dr. McWilliams from 10 companies from 2016 to 2025. The largest total came from AngioDynamics, Inc.
How long has Dr. Sean David McWilliams been practicing?
Dr. McWilliams graduated from medical school in 1995, 31 years ago.
Selling to phlebology practices?
See phlebology physicians 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