Jonathan R. Brown, MD
Internal Medicine Physician · Deerfield, IL
Jonathan R. Brown, MD is an internal medicine physician with a practice address in Deerfield, Illinois, and NPI 1811056773, issued on Dec 7, 2006. Check the license (Illinois 036-093753, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Jonathan R. Brown
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036-093753 IL
Self-reported in NPPES; status is on the state search - Practice location
- 190 Waukegan RD Ste B, Deerfield, IL 60015
- Phone
- (847) 945-4575
- Enumerated
- Dec 7, 2006
- Record last updated
- Oct 6, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (847) 945-4593
- Medicare enrollment
- Enrolled (PECOS I20050902000187); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 1994
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 190 Waukegan RD Ste B
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jonathan R. Brown 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 036-093753Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average internal medicine physician in 2024
9,553 Medicare Part D claims for 852 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. 260 claims were for opioids.
Most prescribed
- Atorvastatin Calcium796 claims
- Amlodipine Besylate383 claims
- Levothyroxine Sodium378 claims
- Lisinopril353 claims
- Losartan Potassium337 claims
- Metoprolol Succinate295 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.
The MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $165.72
3 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. 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
- Endeavor Health Medical GroupEvanston, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jonathan R. Brown among 7,238 internal medicine physician records in Illinois
Jonathan R. Brown, 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
- Graduated1994 · median 2003 among the 3,580 with a school on file
- Record last updated2020 · 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).
21 internal medicine physician records list a practice address in Deerfield
They are 21 of the 712 NPPES records with a practice address in Deerfield, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Deerfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Lewis Barr, M.D.Riverwoods, IL 600151245267962
- Dana Ben-Dov, MDDeerfield, IL 600151194709477
- Mitul DesaiDeerfield, IL 600151437118361
- Jeffrey Foreman, M.D.Deerfield, IL 600151881663243
- Larry Kaskel, MDBannockburn, IL 600151285620484
- Tom Klein, MDRiverwoods, IL 600151326094194
- Monika McLain, MDBannockburn, IL 600151376539718
- Lisa Peck, M.D.Deerfield, IL 600151679539563
Common questions
What is Jonathan R. Brown, MD's NPI number?
Jonathan R. Brown, MD's National Provider Identifier (NPI) is 1811056773, issued on Dec 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan R. Brown, MD located?
The NPPES record lists a practice address at 190 Waukegan RD Ste B, Deerfield, IL, 60015. Phone: (847) 945-4575. Providers update this record themselves, so call before visiting.
How can I verify Jonathan R. Brown, MD's license?
NPPES lists Illinois license number 036-093753, 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 Jonathan R. Brown, MD prescribe under Medicare Part D?
In 2024, Jonathan R. Brown, MD had 9,553 Medicare Part D claims for 852 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Jonathan R. Brown, MD's MIPS final score?
The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.