Steven M. Witzel, MD
Internal Medicine Physician · Vernon Hills, IL
Steven M. Witzel, MD is an internal medicine physician with a practice address in Vernon Hills, Illinois, and NPI 1922064641, issued on Apr 21, 2006. Check the license (Illinois 036-072293, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Steven M. Witzel
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 036-072293 IL
036072293 IL
Self-reported in NPPES; status is on the state search - Practice location
- 870 N Milwaukee Ave FL 2, Vernon Hills, IL 60061
- Phone
- (847) 535-7157
- Enumerated
- Apr 21, 2006
- Record last updated
- Dec 1, 2023
- Fax
- (847) 535-8210
- Medicaid ID
- 036-072293 IL
- Medicare enrollment
- Enrolled (PECOS I20081002000621); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1984
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 870 N Milwaukee Ave FL 2
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Neal Shah, M.D.Internal Medicine Physician1801258561
- Brigit Zielinski, APRN, CNPNurse Practitioner1104674969
Verify Steven M. Witzel 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 036-072293Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% more Medicare Part D claims than the average internal medicine physician in 2024
4,445 Medicare Part D claims for 522 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 69 claims were for opioids.
Most prescribed
- Atorvastatin Calcium367 claims
- Amlodipine Besylate240 claims
- Lisinopril190 claims
- Hydrochlorothiazide174 claims
- Levothyroxine Sodium152 claims
- Metoprolol Succinate141 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: $451.38
6 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Northwestern Medical Faculty FoundationVernon Hills, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Steven M. Witzel among 7,238 internal medicine physician records in Illinois
Steven M. Witzel, MD is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1984 · median 2003 among the 3,580 with a school on file
- Record last updated2023 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
19 internal medicine physician records list a practice address in Vernon Hills
They are 19 of the 704 NPPES records with a practice address in Vernon Hills, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Vernon Hills → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Rafa Adi, M.D.Vernon Hills, IL 600611205845054
- Nadeem Alavi, DOVernon Hills, IL 600611609934983
- Alan Aronson, MDVernon Hills, IL 600611992864946
- Howard Baker, D.O.Vernon Hills, IL 600611558326439
- Fanan Falouji, M.D.Vernon Hills, IL 600611306855481
- Vincent Fang, MDVernon Hills, IL 600611851450654
- Louis Kanter, MDVernon Hills, IL 600611366464281
- John Kiriklakis, M.D.Vernon Hills, IL 600611730189713
Common questions
What is Steven M. Witzel, MD's NPI number?
Steven M. Witzel, MD's National Provider Identifier (NPI) is 1922064641, issued on Apr 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Steven M. Witzel, MD located?
The NPPES record lists a practice address at 870 N Milwaukee Ave FL 2, Vernon Hills, IL, 60061. Phone: (847) 535-7157. Providers update this record themselves, so call before visiting.
How can I verify Steven M. Witzel, MD's license?
NPPES lists Illinois license number 036-072293, 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 Steven M. Witzel, MD prescribe under Medicare Part D?
In 2024, Steven M. Witzel, MD had 4,445 Medicare Part D claims for 522 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.