Brett Riederman, MD
Internal Medicine Physician · Northbrook, IL
Brett Riederman, MD is an internal medicine physician with a practice address in Northbrook, Illinois, and NPI 1003375254, issued on Mar 18, 2019. Check the license (Illinois 125.073830, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Brett Riederman
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 125.073830 IL
Self-reported in NPPES; status is on the state search - Practice location
- 40 Skokie Blvd., Northbrook, IL 60062
- Phone
- (224) 407-4400
- Enumerated
- Mar 18, 2019
- Record last updated
- Nov 19, 2025
- Fax
- (224) 407-2255
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 40 Skokie Blvd.
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Brett Riederman 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 125.073830Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $99.27
1 payment: food and beverage; the largest payer was Genzyme Corporation. 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.
Brett Riederman among 7,238 internal medicine physician records in Illinois
Brett Riederman, 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 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 updated2025 · 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).
26 internal medicine physician records list a practice address in Northbrook
They are 26 of the 2,226 NPPES records with a practice address in Northbrook, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Northbrook → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Nadeem Akhter, M.D.Northbrook, IL 600621235176074
- Lynne Belsky, MDNorthbrook, IL 600621265499438
- Gene Chiao, MDNorthbrook, IL 600621699733188
- Boris Gurevich, M.D.Northbrook, IL 600621902877129
- Richard Katz, MDNorthbrook, IL 600621205924230
- Cori Levinson, M.D.Northbrook, IL 600621356385389
- Meena Malhotra, MDNorthbrook, IL 600621821191958
- Richard Miller, M.D.Northbrook, IL 600621811933195
Common questions
What is Brett Riederman, MD's NPI number?
Brett Riederman, MD's National Provider Identifier (NPI) is 1003375254, issued on Mar 18, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Brett Riederman, MD located?
The NPPES record lists a practice address at 40 Skokie Blvd., Northbrook, IL, 60062. Phone: (224) 407-4400. Providers update this record themselves, so call before visiting.
How can I verify Brett Riederman, MD's license?
NPPES lists Illinois license number 125.073830, 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. 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.