Robert Nathan Stein, MD
Hematology (Internal Medicine) Physician · Chicago, IL
Robert Nathan Stein, MD is a hematology (internal medicine) physician with a practice address in Chicago, Illinois, and NPI 1245230309, issued on Jul 29, 2005. Check the license (Illinois 036054692, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Robert Nathan Stein
- Credential
- MD
- Primary taxonomy
- Hematology (Internal Medicine) Physician 207RH0000X
- License number
- 036054692 IL
Self-reported in NPPES; status is on the state search - Practice location
- 62647 Collection Center Dr, Chicago, IL 60693
- Phone
- (708) 424-9710
- Enumerated
- Jul 29, 2005
- Record last updated
- Jul 10, 2015 (not updated in 11 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest hematology (internal medicine) physician records → All 47 in Illinois → Look up another NPI →
Verify Robert Nathan Stein 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 036054692Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average hematology (internal medicine) physician in 2024
28 Medicare Part D claims, against an average of 496 among the 1,036 providers of this specialty who prescribed in Part D.
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.
Robert Nathan Stein among 47 hematology (internal medicine) physician records in Illinois
Robert Nathan Stein, MD is one of 47 hematology (internal medicine) physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 96% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2015 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology (Internal Medicine) Physician providers in Illinois
There are 47 hematology (internal medicine) physician records in Illinois.
All 47 in Illinois → Every provider in Chicago → Hematology (Internal Medicine) Physician nationwide →
The 8 hematology (internal medicine) physician records with the nearest ZIP codes
- Istvan Redei, M.D.Chicago, IL 606741306818109
- Jagoda Jasielec, M.D.Chicago, IL 606371508039249
- Anjana Chandran, MDChicago, IL 606161902292253
- Irene Dehghan-Paz, MDChicago, IL 606121801053905
- Kunal Desai, MD MBA MSChicago, IL 606121982100012
- Deborah Katz, MDChicago, IL 606121396901500
- Hosam Khayal, MDChicago, IL 606121144271206
- Seo-Hyun Kim, M.D.Chicago, IL 606121710253992
Common questions
What is Robert Nathan Stein, MD's NPI number?
Robert Nathan Stein, MD's National Provider Identifier (NPI) is 1245230309, issued on Jul 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robert Nathan Stein, MD located?
The NPPES record lists a practice address at 62647 Collection Center Dr, Chicago, IL, 60693. Phone: (708) 424-9710. Providers update this record themselves, so call before visiting.
How can I verify Robert Nathan Stein, MD's license?
NPPES lists Illinois license number 036054692, 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 Nathan Stein, MD prescribe under Medicare Part D?
In 2024, Robert Nathan Stein, MD had 28 Medicare Part D claims; the average among hematology (internal medicine) physician prescribers was 496. 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.