Dean Silas, MD
Gastroenterology Physician · Niles, IL
Dean Silas, MD is a gastroenterology physician with a practice address in Niles, Illinois, and NPI 1093809089, issued on Oct 3, 2006. Check the license (Illinois 036079922, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Dean Silas
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 036079922 IL
Self-reported in NPPES; status is on the state search - Practice location
- 7900 Milwaukee Ave, Niles, IL 60714
- Phone
- (847) 318-9595
- Enumerated
- Oct 3, 2006
- Record last updated
- Dec 20, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (847) 318-9599
- Medicaid ID
- 036079922 IL
- Medicare enrollment
- Enrolled (PECOS I20060112000097); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1984
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 887 in Illinois → Look up another NPI →
Also registered at 7900 Milwaukee Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marc Fine, MDGastroenterology Physician1720172729
- Hymie Kavin, MDGastroenterology Physician1447328174
- Kenneth Oriordan, MDGastroenterology Physician1912075649
Verify Dean Silas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036079922Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% more Medicare Part D claims than the average gastroenterology physician in 2024
962 Medicare Part D claims for 344 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Omeprazole181 claims
- Peg 3350-Electrolyte150 claims
- Mesalamine53 claims
- Famotidine43 claims
- Pantoprazole Sodium42 claims
- Sod Sulf-Potass Sulf-Mag Sulf36 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $141.71
2 payments; by number, the most common kind was food and beverage; the largest payer was Madrigal Pharmaceuticals. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Dean Silas among 887 gastroenterology physician records in Illinois
Dean Silas, MD is one of 887 gastroenterology physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 52% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1984 · median 2003 among the 643 with a school on file
- Record last updated2021 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
20 gastroenterology physician records list a practice address in Niles
They are 20 of the 589 NPPES records with a practice address in Niles, and 887 gastroenterology physician records in Illinois.
All 887 in Illinois → Every provider in Niles → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Jorge Aliaga, M.D.Niles, IL 607141013019504
- Jeffrey Brasky, D.O.Niles, IL 607141891976981
- Juan Engel, MDNiles, IL 607141225122393
- Marc Fine, MDNiles, IL 607141720172729
- Abdul Haseeb, MDNiles, IL 607141598032989
- Samir Kakodkar, M.D.Niles, IL 607141164716577
- Jennifer Kang, M.D.Niles, IL 607141821521766
- Hymie Kavin, MDNiles, IL 607141447328174
Common questions
What is Dean Silas, MD's NPI number?
Dean Silas, MD's National Provider Identifier (NPI) is 1093809089, issued on Oct 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Dean Silas, MD located?
The NPPES record lists a practice address at 7900 Milwaukee Ave, Niles, IL, 60714. Phone: (847) 318-9595. Providers update this record themselves, so call before visiting.
How can I verify Dean Silas, MD's license?
NPPES lists Illinois license number 036079922, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Dean Silas, MD prescribe under Medicare Part D?
In 2024, Dean Silas, MD had 962 Medicare Part D claims for 344 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.