Marc Stuart Feldstein, MD
Obstetrics & Gynecology Physician · Chicago, IL
Marc Stuart Feldstein, MD is an obstetrics & gynecology physician with a practice address in Chicago, Illinois, and NPI 1730145566, issued on Apr 21, 2006. Check the license (Illinois 036-087359, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Marc Stuart Feldstein
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 036-087359 IL
Self-reported in NPPES; status is on the state search - Practice location
- 680 N Lake Shore Dr # 1424, Chicago, IL 60611
- Phone
- (312) 929-9191
- Enumerated
- Apr 21, 2006
- Record last updated
- Sep 11, 2024
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 2,062 in Illinois → Look up another NPI →
Also registered at 680 N Lake Shore Dr # 1424
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary SheehanWomen's Health Nurse Practitioner1225742828
Verify Marc Stuart Feldstein 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 036-087359Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
16 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 75% of claims.
Most prescribed
- Prempro11 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: $832.31
26 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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.
Marc Stuart Feldstein among 2,062 obstetrics & gynecology physician records in Illinois
Marc Stuart Feldstein, MD is one of 2,062 obstetrics & gynecology physician records with a practice address in Illinois. 72% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2024 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
700 obstetrics & gynecology physician records list a practice address in Chicago
They are 700 of the 63,379 NPPES records with a practice address in Chicago, and 2,062 obstetrics & gynecology physician records in Illinois.
All 2,062 in Illinois → Every provider in Chicago → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Angela Chaudhari, M.D.Chicago, IL 606111275596959
- April Dewhite, M.D.Chicago, IL 606111265415848
- Julie Ericson, M.D.Chicago, IL 606111588628754
- Patricia Gale, MDChicago, IL 606111437119229
- Micah Garb, M.D.Chicago, IL 606111225012362
- Parul Gupta, M.D.Chicago, IL 606111023001187
- Elena Kamel, M.D.Chicago, IL 606111790749463
- Julie Levitt, M.D.Chicago, IL 606111215991807
Common questions
What is Marc Stuart Feldstein, MD's NPI number?
Marc Stuart Feldstein, MD's National Provider Identifier (NPI) is 1730145566, issued on Apr 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marc Stuart Feldstein, MD located?
The NPPES record lists a practice address at 680 N Lake Shore Dr # 1424, Chicago, IL, 60611. Phone: (312) 929-9191. Providers update this record themselves, so call before visiting.
How can I verify Marc Stuart Feldstein, MD's license?
NPPES lists Illinois license number 036-087359, 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 Marc Stuart Feldstein, MD prescribe under Medicare Part D?
In 2024, Marc Stuart Feldstein, MD had 16 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. 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.