Robert Gregg Perlmuter, M.D.
Internal Medicine Physician · Chicago, IL
Robert Gregg Perlmuter, M.D. is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1366546509, issued on Sep 8, 2006. Check the license (Illinois 036073796, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Robert Gregg Perlmuter
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036073796 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1460 N Halsted St Ste 202, Chicago, IL 60642
- Phone
- (773) 871-4409
- Enumerated
- Sep 8, 2006
- Record last updated
- Nov 1, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (773) 871-3608
- Medicaid ID
- 036073796 IL
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 1460 N Halsted St Ste 202
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Robert Gregg Perlmuter 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 036073796Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,303 Medicare Part D claims for 144 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. 18 claims were for opioids.
Most prescribed
- Atorvastatin Calcium126 claims
- Amlodipine Besylate59 claims
- Lisinopril44 claims
- Losartan Potassium42 claims
- Metoprolol Succinate41 claims
- Pantoprazole Sodium38 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.
Industry payments in 2024: $49.24
2 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk 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.
Robert Gregg Perlmuter among 7,238 internal medicine physician records in Illinois
Robert Gregg Perlmuter, 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. 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 fileNo · 50% of these records are
- Record last updated2010 · 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
- Anub Abraham, D.O.Chicago, IL 606421710143904
- Olayinka Akinola, M.D., MPHChicago, IL 606421043593049
- Sheila Bhagavan, M.D.Chicago, IL 606421811097298
- Nooshin Cohanim, M.D.Chicago, IL 606421780788968
- Merle Diamond, MDChicago, IL 606421780676668
- Erika Flores, M.D.Chicago, IL 606421346421591
- Daniel Litoff, M.D.Chicago, IL 606421891786372
- Joanna Martin, M.D.Chicago, IL 606421063523975
Common questions
What is Robert Gregg Perlmuter, M.D.'s NPI number?
Robert Gregg Perlmuter, M.D.'s National Provider Identifier (NPI) is 1366546509, issued on Sep 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Gregg Perlmuter, M.D. located?
The NPPES record lists a practice address at 1460 N Halsted St Ste 202, Chicago, IL, 60642. Phone: (773) 871-4409. Providers update this record themselves, so call before visiting.
How can I verify Robert Gregg Perlmuter, M.D.'s license?
NPPES lists Illinois license number 036073796, 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 Robert Gregg Perlmuter, M.D. prescribe under Medicare Part D?
In 2024, Robert Gregg Perlmuter, M.D. had 1,303 Medicare Part D claims for 144 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.