Robert J. Sobel, M.D
Endocrinology, Diabetes & Metabolism Physician · Chicago, IL
Robert J. Sobel, M.D is an endocrinology, diabetes & metabolism physician with a practice address in Chicago, Illinois, and NPI 1285707851, issued on Nov 15, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Robert J. Sobel
- Credential
- M.D
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- Practice location
- 30 N Michigan Ave, Chicago, IL 60602
- Phone
- (312) 726-0005
- Enumerated
- Nov 15, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 0360863683 IL
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 436 in Illinois → Look up another NPI →
Also registered at 30 N Michigan Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Bailey AmisProfessional Counselor1720662448
- Elizabeth Aram, PSYDClinical Psychologist1396257366
- Maria Ashley, DDSDentist1508083288
- David Baum, MDObstetrics & Gynecology Physician1245296888
Verify Robert J. Sobel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
2,442 Medicare Part D claims for 97 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 29 claims were for opioids.
Most prescribed
- Atorvastatin Calcium183 claims
- Amlodipine Besylate114 claims
- Metformin Hcl Er82 claims
- Ozempic82 claims
- Rosuvastatin Calcium82 claims
- Levothyroxine Sodium78 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.
Robert J. Sobel among 436 endocrinology, diabetes & metabolism physician records in Illinois
Robert J. Sobel, M.D is one of 436 endocrinology, diabetes & metabolism 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 62% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2007 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Illinois
There are 436 endocrinology, diabetes & metabolism physician records in Illinois.
All 436 in Illinois → Every provider in Chicago → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Sanija Bajramovic, M.D.Chicago, IL 606021851341705
- James Sheinin, MDChicago, IL 606021063600468
- Kamil Winnicki, MDChicago, IL 606011538747076
- Elizabeth Lowden, M.D.Chicago, IL 606061568783991
- Emily Smith, M.D.Chicago, IL 606061386906089
- Yannis Guerra, M.D.Chicago, IL 606071922193671
- Paula Butler, M.D.Chicago, IL 606081427041482
- Maguy Chiha, M.D.Chicago, IL 606081073705042
Common questions
What is Robert J. Sobel, M.D's NPI number?
Robert J. Sobel, M.D's National Provider Identifier (NPI) is 1285707851, issued on Nov 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert J. Sobel, M.D located?
The NPPES record lists a practice address at 30 N Michigan Ave, Chicago, IL, 60602. Phone: (312) 726-0005. Providers update this record themselves, so call before visiting.
How can I verify Robert J. Sobel, M.D's license?
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 J. Sobel, M.D prescribe under Medicare Part D?
In 2024, Robert J. Sobel, M.D had 2,442 Medicare Part D claims for 97 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.