Adam Mendel Sonabend Worthalter, M.D.
Neurological Surgery Physician · Chicago, IL
Adam Mendel Sonabend Worthalter, M.D. is a neurological surgery physician with a practice address in Chicago, Illinois, and NPI 1023261138, issued on Nov 3, 2008. Check the license (Illinois 036143155, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Adam Mendel Sonabend Worthalter
- Credential
- M.D.
- Primary taxonomy
- Neurological Surgery Physician 207T00000X
- License number
- 036143155 IL
Self-reported in NPPES; status is on the state search - Practice location
- 675 N Saint Clair St Ste 21-100, Chicago, IL 60611
- Phone
- (312) 695-0990
- Enumerated
- Nov 3, 2008
- Record last updated
- Jul 21, 2022
- Medicare enrollment
- Enrolled (PECOS I20170801001451); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurological surgery physician records → All 375 in Illinois → Look up another NPI →
Also registered at 675 N Saint Clair St Ste 21-100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Aditi AcharyaPhysician Assistant1922629203
- Alexis Adamsick, DNP, APRN, FNP-CNurse Practitioner1699485631
- Nicole Back, PA-CPhysician Assistant1134672116
- Nicole Bubes, PA-CPhysician Assistant1457864993
- Laura Campa, APRN, CNPNurse Practitioner1093366734
Verify Adam Mendel Sonabend Worthalter 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 036143155Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average neurological surgery physician in 2024
12 Medicare Part D claims, against an average of 172 among the 4,378 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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): 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).
Industry payments in 2024: $52.68
1 payment: food and beverage; the largest payer was Telix Pharmaceuticals. The 5,377 providers of this specialty with any payment received $14,925.58 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
- Northwestern Medical Faculty FoundationChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Adam Mendel Sonabend Worthalter among 375 neurological surgery physician records in Illinois
Adam Mendel Sonabend Worthalter, M.D. is one of 375 neurological surgery physician records with a practice address in Illinois. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 46% of them.
- NPI issued2008 · 46% of these records are older, 48% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2007 · median 2004 among the 199 with a school on file
- Record last updated2022 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurological Surgery Physician providers in Illinois
There are 375 neurological surgery physician records in Illinois.
All 375 in Illinois → Every provider in Chicago → Neurological Surgery Physician nationwide →
The 8 neurological surgery physician records with the nearest ZIP codes
- James Chandler, MDChicago, IL 606111881656411
- George Cybulski, MDChicago, IL 606111336107937
- Nader Dahdaleh, M.D.Chicago, IL 606111831307339
- Sunit Das, M.D., PH.D.Chicago, IL 606111114173804
- Aruna Ganju, MDChicago, IL 606111366487969
- Amy Heimberger, M.D.Chicago, IL 606111235220955
- Babak Jahromi, MDChicago, IL 606111467616193
- Michel Kliot, M.D.Chicago, IL 606111952411001
Common questions
What is Adam Mendel Sonabend Worthalter, M.D.'s NPI number?
Adam Mendel Sonabend Worthalter, M.D.'s National Provider Identifier (NPI) is 1023261138, issued on Nov 3, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Adam Mendel Sonabend Worthalter, M.D. located?
The NPPES record lists a practice address at 675 N Saint Clair St Ste 21-100, Chicago, IL, 60611. Phone: (312) 695-0990. Providers update this record themselves, so call before visiting.
How can I verify Adam Mendel Sonabend Worthalter, M.D.'s license?
NPPES lists Illinois license number 036143155, 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 Adam Mendel Sonabend Worthalter, M.D. prescribe under Medicare Part D?
In 2024, Adam Mendel Sonabend Worthalter, M.D. had 12 Medicare Part D claims; the average among neurological surgery physician prescribers was 172. Part D covers Medicare prescriptions only.
What is Adam Mendel Sonabend Worthalter, M.D.'s MIPS final 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), 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.