Joseph Bass, MD, PHD
Endocrinology, Diabetes & Metabolism Physician · Chicago, IL
Joseph Bass, MD, PHD is an endocrinology, diabetes & metabolism physician with a practice address in Chicago, Illinois, and NPI 1700810017, issued on Jul 10, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Joseph Bass
- Credential
- MD, PHD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- Practice location
- 675 N Saint Clair St, Chicago, IL 60611
- Phone
- (312) 695-7970
- Enumerated
- Jul 10, 2006
- Entity
- Type 1 · individual
Also registered at 675 N Saint Clair St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Joseph Bass 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
94% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
173 Medicare Part D claims for 23 beneficiaries, against an average of 2,739 among the 6,176 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of claims.
Most prescribed
- Levothyroxine Sodium20 claims
- Metformin Hcl15 claims
- Humalog Kwikpen U-20012 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 Medicare quality score for 2023: 94.1 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).
One hospital or facility affiliation
- Northwestern Medical Faculty FoundationEvanston, IL
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Endocrinology, Diabetes & Metabolism Physician providers in Illinois
There are 329 endocrinology, diabetes & metabolism physician records in Illinois.
Other endocrinology, diabetes & metabolism physician records in Illinois
- Maha Abboud, MD FACEMelrose Park, IL1346208956
- Jumana Abdelkarim, MDSpringfield, IL1154815363
- Toufic Abdo, MDChampaign, IL1962497032
- Caroline Abe, MD, MPHChicago, IL1316574122
- Issa Abedmahmoud, MDHerrin, IL1528042975
- Makarem Abulimon, M.D.Springfield, IL1699207381
- Lily Agrawal, M.D.Oakbrook Terrace, IL1922110394
- Ayesha Akbar, M.D.Frankfort, IL1407809064
- Wajeeha Akhter, MDGurnee, IL1104409796
- Suzan Al Gharaibeh, M.D.Springfield, IL1235345539
Common questions
What is Joseph Bass, MD, PHD's NPI number?
Joseph Bass, MD, PHD's National Provider Identifier (NPI) is 1700810017, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Bass, MD, PHD located?
The NPPES record lists a practice address at 675 N Saint Clair St, Chicago, IL, 60611. Phone: (312) 695-7970. Providers update this record themselves, so call before visiting.
How can I verify Joseph Bass, MD, PHD'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 Joseph Bass, MD, PHD prescribe under Medicare Part D?
In 2024, Joseph Bass, MD, PHD had 173 Medicare Part D claims for 23 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,739. Part D covers Medicare prescriptions only.
What is Joseph Bass, MD, PHD's Medicare quality score?
The 2023 MIPS final score is 94.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.