DR. DEAN SILAS (MD) – Gastroenterology Physician, NPI 1093809089
Gastroenterology Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
978 GASTROENTEROLOGY in IL
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Provider Addresses for DR. DEAN SILAS (MD)
Oak Mill Mall, 7900, North Milwaukee Avenue, Niles, Maine Township, Cook County, Illinois, 60714, United States
SUITE 19
NILES, IL 607143159
Phone: (847) 318-9595
Fax: (847) 318-9599
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $159.
Total Amount is formed as General ($159) + Research ($0) + Ownership ($0) = $159.
Last reported payment date: 2024-09-11 • Largest payer in this snapshot: Madrigal Pharmaceuticals ($121).
Total Amount
$159
General + Research + Ownership
Payments
3
Total payment records
General Amount
$159
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-11
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Madrigal Pharmaceuticals | $121 |
| Boston Scientific Corporation | $38 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2006-01-12
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20060112000097 | I | Gastroenterology | IL | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 145 | 89 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 123 | 110 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 111 | 108 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 104 | 90 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 96 | 96 | $0 |
Insurance plans in this area (ZIP 60714)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nephrology, Internal Medicine | IL | |
| A N E S T H E S I O L O G Y | IL | |
| - | MN | |
| - | IL | |
| - | IL | |
| Rheumatology, Internal Medicine | IL | |
| - | IL | |
| Internal Medicine | IL | |
| P S Y C H I A T R Y | IL | |
| - | IL |
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