Stephen Aaron Trevick, M.D.
Neurology Physician · Lake Barrington, IL
Stephen Aaron Trevick, M.D. is a neurology physician with a practice address in Lake Barrington, Illinois, and NPI 1861634776, issued on Mar 25, 2009. Check the license (Illinois 036.141031, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Stephen Aaron Trevick
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 036.141031 IL
Self-reported in NPPES; status is on the state search - Practice location
- 22285 N Pepper RD Ste 401, Lake Barrington, IL 60010
- Phone
- (847) 882-6604
- Enumerated
- Mar 25, 2009
- Record last updated
- Sep 28, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170928001031); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2009
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 952 in Illinois → Look up another NPI →
Also registered at 22285 N Pepper RD Ste 401
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Megan Baldassarre, PSYDClinical Neuropsychologist1710332754
- Elizabeth Flaherty, M.D.Neurology Physician1881907699
- Kelsey Olson, PA-CPhysician Assistant1861084725
- Kelly Schaeffer, FNPFamily Nurse Practitioner1689192676
Verify Stephen Aaron Trevick 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 036.141031Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average neurology physician in 2024
13 Medicare Part D claims, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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: $160.62
1 payment: food and beverage; the largest payer was Inspire Medical Systems, Inc. The 10,858 providers of this specialty with any payment received $8,318.07 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.
Bills Medicare through one group practice
- Northwest Neurology, LtdLake Barrington, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen Aaron Trevick among 952 neurology physician records in Illinois
Stephen Aaron Trevick, M.D. is one of 952 neurology physician records with a practice address in Illinois. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 47% of them.
- NPI issued2009 · 47% of these records are older, 51% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2009 · median 2006 among the 573 with a school on file
- Record last updated2018 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 neurology physician records list a practice address in Lake Barrington
They are 15 of the 152 NPPES records with a practice address in Lake Barrington, and 952 neurology physician records in Illinois.
All 952 in Illinois → Every provider in Lake Barrington → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Daniele Anderson, M.D.Lake Barrington, IL 600101588689285
- Barry Bikshorn, M.D.Lake Barrington, IL 600101275577124
- Jeffrey Farbman, M.D.Lake Barrington, IL 600101821020504
- Elizabeth Flaherty, M.D.Lake Barrington, IL 600101881907699
- Shirley Forbes, M.D.Barrington, IL 600101851661771
- Andrew Gordon, M.D.Lake Barrington, IL 600101508898206
- George Katsamakis, M.D.Lake Barrington, IL 600101174502835
- Ahmir Khan, M.D. PH.D.Lake Barrington, IL 600101851575039
Common questions
What is Stephen Aaron Trevick, M.D.'s NPI number?
Stephen Aaron Trevick, M.D.'s National Provider Identifier (NPI) is 1861634776, issued on Mar 25, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Aaron Trevick, M.D. located?
The NPPES record lists a practice address at 22285 N Pepper RD Ste 401, Lake Barrington, IL, 60010. Phone: (847) 882-6604. Providers update this record themselves, so call before visiting.
How can I verify Stephen Aaron Trevick, M.D.'s license?
NPPES lists Illinois license number 036.141031, 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 Stephen Aaron Trevick, M.D. prescribe under Medicare Part D?
In 2024, Stephen Aaron Trevick, M.D. had 13 Medicare Part D claims; the average among neurology physician prescribers was 1,370. 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.