Mark G. Lewis, MD
Internal Medicine Physician · Geneva, IL
Mark G. Lewis, MD is an internal medicine physician with a practice address in Geneva, Illinois, and NPI 1811007925, issued on Aug 30, 2006. Check the license (Illinois 036074413, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark G. Lewis
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036074413 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2197 Blackberry Dr, Geneva, IL 60134
- Phone
- (630) 232-7600
- Enumerated
- Aug 30, 2006
- Record last updated
- Nov 18, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (630) 232-7941
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Verify Mark G. Lewis 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 036074413Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mark G. Lewis among 7,238 internal medicine physician records in Illinois
Mark G. Lewis, 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 not. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileNo · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2009 · 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).
Internal Medicine Physician providers in Illinois
There are 7,238 internal medicine physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,238 in Illinois → Every provider in Geneva → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jaclyn KellerGeneva, IL 601341982066494
- Algimantas Kerpe, M.D.Geneva, IL 601341235122581
- Nirali Patel, DOGeneva, IL 601341720115041
- Puja PatelGeneva, IL 601341356979256
- Anand Thakkar, M.D.Hanover Park, IL 601331336190040
- Gina Abraham, MDFranklin Park, IL 601311275600223
- Walter Briney, M.D.Glen Ellyn, IL 601371659365955
- Luis Couret, M.D.Franklin Park, IL 601311134218399
Common questions
What is Mark G. Lewis, MD's NPI number?
Mark G. Lewis, MD's National Provider Identifier (NPI) is 1811007925, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark G. Lewis, MD located?
The NPPES record lists a practice address at 2197 Blackberry Dr, Geneva, IL, 60134. Phone: (630) 232-7600. Providers update this record themselves, so call before visiting.
How can I verify Mark G. Lewis, MD's license?
NPPES lists Illinois license number 036074413, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.