John Brill, M.D.
Internal Medicine Physician · Chicago, IL
John Brill, M.D. is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1326159690, issued on Aug 31, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Brill
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 230 W Monroe St, Chicago, IL 60606
- Phone
- (312) 942-3100
- Enumerated
- Aug 31, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 230 W Monroe St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bruce Huck, M.D.Internal Medicine Physician1023129301
- Tifany Jamison, APN, FNP-BCFamily Nurse Practitioner1285184150
- Mary Jones, FNP-CFamily Nurse Practitioner1720433048
- Michele Kannin, M.D.Internal Medicine Physician1275644551
- Lauren Kemp, DNPFamily Nurse Practitioner1578019303
- Kristin King, MSN, AGPCNP-BCAdult Health Nurse Practitioner1508264292
Verify John Brill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John Brill among 7,238 internal medicine physician records in Illinois
John Brill, M.D. 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 updated2007 · 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).
2,867 internal medicine physician records list a practice address in Chicago
They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 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 Chicago → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Lisa Bellanfonte, MDChicago, IL 606061275625113
- John Combes, MDChicago, IL 606061578802757
- Peter Georginis, MDChicago, IL 606061629426366
- Bruce Huck, M.D.Chicago, IL 606061023129301
- Michele Kannin, M.D.Chicago, IL 606061275644551
- Alex Lickerman, M.D.Chicago, IL 606061891905998
- Beth Marshall-Bergman, D.O.Chicago, IL 606061962791657
- Farah Meah, D.O.Chicago, IL 606061518286459
Common questions
What is John Brill, M.D.'s NPI number?
John Brill, M.D.'s National Provider Identifier (NPI) is 1326159690, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Brill, M.D. located?
The NPPES record lists a practice address at 230 W Monroe St, Chicago, IL, 60606. Phone: (312) 942-3100. Providers update this record themselves, so call before visiting.
How can I verify John Brill, M.D.'s license?
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.