NPPES file of Aug 9, 2026

Sarah Ruth Werner, MD

Obstetrics & Gynecology Physician · Chicago, IL

Sarah Ruth Werner, MD is an obstetrics & gynecology physician with a practice address in Chicago, Illinois, and NPI 1194220145, issued on Mar 29, 2018. Check the license (Illinois 036176680, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1194220145
Name
Sarah Ruth Werner
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
036176680 IL
Self-reported in NPPES; status is on the state search
Practice location
1801 W Taylor St, Chicago, IL 60612
Phone
(508) 942-1839
Enumerated
Mar 29, 2018
Record last updated
Sep 16, 2025
Medicare enrollment
Enrolled (PECOS I20251007000189); accepts Medicare assignment
Medical or professional school
State University Of New York Downstate Medical Center, 2018
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1801 W Taylor St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Khaled Abdelhady, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1811173156
  2. Aneet Ahluwalia, M.D.Internal Medicine Physician1538285416
  3. Omar Ahmed, MBBCHGastroenterology Physician1578183935
  4. Dalmina Arias, OTR/LOccupational Therapist1346758281
  5. Ayesha Arif, MDRheumatology Physician1205398534
  6. Iris Aronson, MDDermatology Physician1629153614

Verify Sarah Ruth Werner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036176680
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

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75% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

42 Medicare Part D claims for 28 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Sarah Werner42
  2. Specialty average165

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.

Bills Medicare through one group practice

  1. The Board OF Trustees OF The University OF IllinoisChicago, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sarah Ruth Werner among 2,062 obstetrics & gynecology physician records in Illinois

Sarah Ruth Werner, 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 2018, is newer than 79% of them.

  • NPI issued2018 · 79% of these records are older, 19% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2018 · median 2006 among the 1,168 with a school on file
  • Record last updated2025 · 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.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Eric Brown, M.D.Chicago, IL 606121356303663
  2. Allison Cowett, M.D.Chicago, IL 606121639282668
  3. Sadia Haider, MDChicago, IL 606121033163522
  4. Kimberly Jezek-TischChicago, IL 606121720090269
  5. Robin Jones, M.D.Chicago, IL 606121942262258
  6. Martha KaempfeChicago, IL 606121821000142
  7. Andrea KempChicago, IL 606121932112927
  8. Edward Linn, M.D.Chicago, IL 606121730178765

Common questions

What is Sarah Ruth Werner, MD's NPI number?

Sarah Ruth Werner, MD's National Provider Identifier (NPI) is 1194220145, issued on Mar 29, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Sarah Ruth Werner, MD located?

The NPPES record lists a practice address at 1801 W Taylor St, Chicago, IL, 60612. Phone: (508) 942-1839. Providers update this record themselves, so call before visiting.

How can I verify Sarah Ruth Werner, MD's license?

NPPES lists Illinois license number 036176680, 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 Sarah Ruth Werner, MD prescribe under Medicare Part D?

In 2024, Sarah Ruth Werner, MD had 42 Medicare Part D claims for 28 beneficiaries; 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.