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- 180 Danada Sq W, Wheaton, IL 60189
About Dr. Mcwilliams
Based in Wheaton, IL, Sean D. McWilliams, MD is listed in the NPI registry under general practice. Sean is also listed as specializing in family medicine and vascular surgery. According to Medicare claims data, Sean cared for 435 Medicare patients across 687 services. The services billed most often include ultrasonic guidance for needle placement, ultrasound study of arm or leg veins with compression and maneuvers, and injection of chemical agent into multiple incompetent veins of leg. NPI 1356323398 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (630) 474-2600
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
180 DANADA SQ W
Wheaton, IL 60189
Conditions Commonly Evaluated or Treated
Within General Practice generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Digestive health
- Food Poisoning
- Hemorrhoids
- IBS
Rashes & allergy
Most searched conditions
Blood disorders
Bone health
Brain & Nerves
Digestive Health
Ear, Nose & Throat
Endocrine
Eye Care
Foot & Ankle
General Health
Heart & Circulation
Infections
Joint & Muscle
Lungs & Breathing
Men's Health
Mental Health
Pain
Pain & Joints
Skin
Skin & Hair
Sleep
Urinary & Kidney
Weight & Metabolism
Women's Health
Procedures & services
Diagnostic testing
- Diabetes Screening and A1C Test
- Heart monitor
- Spirometry
Heart & Circulation
Infection & Microbiology Tests
Infections & Screening
- Cholesterol Check
- COVID-19 testing
- STI Testing
- Urine Drug Screen
Injections
- Antibiotic Injection
Lab tests
- Rapid flu test
- Rapid Mono Test
- Rapid strep testing
- Urinalysis
- Vaccine Titer Test
Men's Health
Mental health
Minor Surgery
- Superficial foreign-body removal
- Incision and drainage of an abscess
- Ingrown toenail removal
- Mole removal
- Skin Tag Removal
- Wart Removal
Physical exams
Prescriptions & Medications
Routine Blood Tests
Sleep
Vaccines
- Shingles And Senior Vaccinations
- HPV vaccine
- Routine Vaccines
- Tetanus shot
- Travel vaccines
Weight & Metabolism
Women's Health
- Depo Shot
- Pregnancy Confirmation Test
- Birth control counseling
- IUD Removal
- Pap smear
- Pelvic exam
Wound Care
Most searched procedures
Dermatology
Ear, Nose & Throat
- Earwax removal
Exams & Clearances
Hormone therapy
- Hormone replacement therapy
Lungs & Breathing
Pain & Injections
Pain & Joints
Pain management
Preventive care
Preventive Care
Procedures Most Often Billed to Medicare
687 services · 435 patients · 12 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of chemical agent into multiple incompetent veins of leg | Procedure | 36471 |
96 | Too few peers to compare |
| Injection of chemical agent into single incompetent vein of leg using ultrasound guidance | Procedure | 36465 |
58 | Too few peers to compare |
| Destruction of first incompetent vein of arm or leg using radiofrequency and imaging guidance | Procedure | 36475 |
42 | Too few peers to compare |
| Injection of chemical agent into single incompetent vein | Procedure | 36470 |
41 | Too few peers to compare |
| Chemical destruction of first incompetent vein of arm or leg using imaging guidance | Procedure | 36482 |
23 | Too few peers to compare |
| Ultrasonic guidance for needle placement | Imaging | 76942 |
127 | Too few peers to compare |
| Ultrasound study of arm or leg veins with compression and maneuvers | Treatment | 93970 |
113 | Too few peers to compare |
| Ultrasound study of one arm or leg veins with compression and maneuvers | Treatment | 93971 |
56 | Too few peers to compare |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
59 | More often than most peers in General Practice |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
32 | Less often than most peers in General Practice |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1995 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. McWilliams specialize in?
Dr. McWilliams is a general practitioner in Wheaton, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “General Practice”.
NPI registry
Where is Dr. McWilliams located?
Dr. McWilliams is listed at 180 Danada Sq W, Wheaton, IL 60189. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. McWilliams's phone number?
The number on file is (630) 474-2600. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. McWilliams's NPI number?
Dr. McWilliams's National Provider Identifier is 1356323398. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. McWilliams go to medical school?
Dr. McWilliams attended Other, graduating in 1995. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. McWilliams been practicing?
Dr. McWilliams has 31 years experience. Calculated from a graduation year of 1995, reported in the CMS National Downloadable File.
CMS public data
What does Dr. McWilliams do most often?
According to Medicare billing data, Dr. McWilliams performs procedures including injection of chemical agent into multiple incompetent veins of leg, injection of chemical agent into single incompetent vein of leg using ultrasound guidance and destruction of first incompetent vein of arm or leg using radiofrequency and imaging guidance; reads or performs imaging such as ultrasonic guidance for needle placement; provides treatments such as ultrasound study of arm or leg veins with compression and maneuvers and ultrasound study of one arm or leg veins with compression and maneuvers, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. McWilliams confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. McWilliams. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.