Brian Gerber Weiland
Internal Medicine Physician · Chicago, IL
Brian Gerber Weiland is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1225597529, issued on Mar 16, 2019. Check the license (Illinois 036.159762, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Brian Gerber Weiland
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036.159762 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1400 W Greenleaf Ave, Chicago, IL 60626
- Phone
- (773) 508-6135
- Enumerated
- Mar 16, 2019
- Record last updated
- Aug 27, 2022
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 1400 W Greenleaf Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Georgine AlfanoClinical Social Worker1710489729
- Katherine Alshuler, LCSW, CADCClinical Social Worker1073060513
- Cory AndersonOccupational Therapist1386458677
- Jamie AngellOccupational Therapist1194227819
- Kirsten AntleOccupational Therapist1982423430
- Claire AstoneSocial Worker1528560554
Verify Brian Gerber Weiland 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 036.159762Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% more Medicare Part D claims than the average internal medicine physician in 2024
6,194 Medicare Part D claims for 182 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 100 claims were for opioids.
Most prescribed
- Atorvastatin Calcium736 claims
- Amlodipine Besylate274 claims
- Pantoprazole Sodium241 claims
- Telmisartan240 claims
- Omeprazole220 claims
- Metformin Hcl Er209 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.
Brian Gerber Weiland among 7,238 internal medicine physician records in Illinois
Brian Gerber Weiland 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 2019, is newer than 68% of them.
- NPI issued2019 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2022 · 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.
All 7,238 in Illinois → Every provider in Chicago → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Eric Christoff, M.D.Chicago, IL 606261245287317
- Magda Houlberg, M.D.Chicago, IL 606261497925861
- Kwang Jang, D.O.Chicago, IL 606261326271909
- Svetlana Miroshnichenko, MDChicago, IL 606261346231651
- Tolulope Olu-Lawal, MDChicago, IL 606261780207340
- Gregory Rauch, M.D.Chicago, IL 606261912921297
- Sara Ahmed, DOChicago, IL 606251992635122
- Abigail Anderson, DOChicago, IL 606251154263168
Common questions
What is Brian Gerber Weiland's NPI number?
Brian Gerber Weiland's National Provider Identifier (NPI) is 1225597529, issued on Mar 16, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Brian Gerber Weiland located?
The NPPES record lists a practice address at 1400 W Greenleaf Ave, Chicago, IL, 60626. Phone: (773) 508-6135. Providers update this record themselves, so call before visiting.
How can I verify Brian Gerber Weiland's license?
NPPES lists Illinois license number 036.159762, 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 Brian Gerber Weiland prescribe under Medicare Part D?
In 2024, Brian Gerber Weiland had 6,194 Medicare Part D claims for 182 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.