Dr. Nicholas Silas, DO
- Medicare services, 2024
- 283
- Medicare patients, 2024
- 271
- Part D claims, 2024
- 126
- Hospital affiliations
- 1
- Industry payments
- $21
- Practice address
- 1100 E Norris Dr, Ottawa, IL 61350
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
OSF Saint Elizabeth Medical Center - Behavioral Health - HOPD
Acute Care Hospital outpatient department · Ottawa, Illinois
Find Dr. Silas' professional email, personal email and mobile number
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Dr. Nicholas Silas is an emergency medicine physician in Ottawa, Illinois
Dr. Silas practices at OSF Saint Elizabeth Medical Center - Behavioral Health - HOPD in Ottawa, Illinois.
Dr. Silas' NPI, 1073140216, was assigned on March 26, 2020. Dr. Silas holds Illinois license 125.076489.
- NPI
- 1073140216NPI Registry (opens in a new tab)
- NPI enumeration date
- March 26, 2020
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Nicholas Silas practices at OSF Saint Elizabeth Medical Center - Behavioral Health - HOPD in Ottawa, Illinois
Dr. Silas' primary practice is OSF Saint Elizabeth Medical Center - Behavioral Health - HOPD, at 1100 E Norris Dr, Ottawa, IL 61350.
- OSF Saint Elizabeth Medical Center - Behavioral Health - HOPD1100 E Norris Dr, Ottawa, IL 61350
Source: Dmand AI Affiliation Data
Dr. Nicholas Silas is affiliated with 2 sites of care and 1 medical group
Dr. Silas' primary practice is OSF Saint Elizabeth Medical Center - Behavioral Health - HOPD in Ottawa, Illinois. Dr. Silas is also affiliated with University of Illinois Hospital. The medical group on file is OSF Multi-Specialty Group.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Nicholas Silas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Silas practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| OSF Saint Elizabeth Medical Center - Behavioral Health - HOPD | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nicholas Silas is one of 2,385 emergency medicine physicians in Illinois
Emergency medicine is Dr. Silas' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Silas is licensed in Illinois.
Specialties and state licenses
- Emergency medicine, IllinoisPrimary
Emergency medicine physicians near Dr. Silas
Counts of emergency medicine 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. Nicholas Silas billed Medicare for 283 services in 2024
CMS data shows 283 Medicare services from Dr. Silas across 3 procedure codes in 2024, for 271 Medicare patients. Medicare paid $29,451 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Silas' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1522024: 28386%
Dr. Silas compared with the Illinois median for emergency medicine physicians, 2024
- Dr. Silas
- Illinois median
- Medicare services
- 283vs 274Close to median
- Medicare patients
- 271vs 273Close to median
- Part D claims
- 51vs 4513% above
Medians across 2,281 emergency medicine physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Silas' 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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Silas and other emergency medicine physicians in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nicholas Silas treated 271 Medicare patients in 2024, average age 74
CMS counts 271 Medicare patients who saw Dr. Silas in 2024. The largest group is 65 to 74, with 102 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 24% are also on Medicaid. Their average risk score is 2.08, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Silas' median patient age at 68, with 52% women.
Dr. Silas' Medicare patients by age, 2024
Dr. Silas' Medicare patients by sex, 2024
- Women13550%
- Men13650%
Chronic conditions among Dr. Silas' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Chronic kidney disease46%
- Anxiety40%
- Diabetes39%
- Heart failure37%
- Mood disorders37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Silas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nicholas Silas wrote 126 Medicare Part D claims in 2024
In 2024, Dr. Silas wrote 126 Medicare Part D claims for 81 patients. 90% of them were for generic drugs. CMS names the drug for 51 of them, across 4 drugs with 11 or more claims each, at $262 in total drug cost. In 2023, CMS named 22 claims across 2 drugs.
Dr. Silas' Part D claims by kind of drug, 2024
- Generic114 claims90%
- Brand-name12 claims10%
Dr. Silas' 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. Silas' Part D claims, 2024
- Opioids14%18 of 126 claims
- Antibiotics35%44 of 126 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: 222024: 51132%
Drugs named by CMS: 4 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
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Dr. Nicholas Silas received $21 in industry payments in 2020
CMS Open Payments shows 1 general payment to Dr. Silas from 1 drug or device company in 2020. Food and beverage make up the largest share, 100% of the total. ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) paid the most, $21.
Companies that paid Dr. Silas the most, 2020 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nicholas Silas'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 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) |
| 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. Nicholas Silas
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. Nicholas Silas' NPI number?
Dr. Nicholas Silas' NPI number is 1073140216. It was assigned on March 26, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Nicholas Silas?
Dr. Nicholas Silas is an emergency medicine physician in Ottawa, Illinois. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Nicholas Silas practice?
Dr. Silas practices at 1100 E Norris Dr, Ottawa, IL 61350. Dr. Silas' primary practice is OSF Saint Elizabeth Medical Center - Behavioral Health - HOPD in Ottawa, Illinois.
What is Dr. Nicholas Silas' medical license number?
Dr. Silas holds Illinois license 125.076489.
Which hospitals is Dr. Nicholas Silas affiliated with?
Dr. Silas is affiliated with University of Illinois Hospital.
What medical group is Dr. Nicholas Silas part of?
Dr. Silas is linked to OSF Multi-Specialty Group.
Does Dr. Nicholas Silas accept Medicare?
Yes. CMS data shows Dr. Silas billed Medicare for 283 services in 2024.
How many Medicare patients does Dr. Nicholas Silas see?
CMS counts 271 Medicare patients who saw Dr. Silas in 2024, with an average age of 74.
What services does Dr. Nicholas Silas bill to Medicare?
In 2024, Dr. Silas' most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and emergency department visit (99283).
What drugs does Dr. Nicholas Silas prescribe most?
In 2024 Medicare Part D data, Dr. Silas' most prescribed drugs by claims were Hydrocodone-Acetaminophen, Cephalexin and Amoxicillin-Clavulanate Potass.
Has Dr. Nicholas Silas received payments from drug or device companies?
CMS Open Payments shows $21 in general payments to Dr. Silas from 1 company from 2020 to 2020. The largest total came from ZOLL Services LLC (A/K/A ZOLL LifeCor Corp).
How long has Dr. Nicholas Silas been practicing?
Dr. Silas' NPI was assigned in 2020.
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