NPPES file of Aug 9, 2026

Sandra Willner Horowitz, M.D.

Diagnostic Radiology Physician · Palos Heights, IL

Sandra Willner Horowitz, M.D. is a diagnostic radiology physician with a practice address in Palos Heights, Illinois, and NPI 1194738161, issued on Aug 14, 2006. Check the license 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
1194738161
Name
Sandra Willner Horowitz
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
Practice location
11800 Southwest Hwy, Palos Heights, IL 60463
Phone
(708) 361-0220
Enumerated
Aug 14, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(708) 923-3611
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 11800 Southwest Hwy

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

  1. Mumtaz Chinoy, M.D.Diagnostic Radiology Physician1720091713
  2. Fawn Cohen, M.D.Diagnostic Radiology Physician1780852822
  3. David Garagiola, M.D.Diagnostic Radiology Physician1760495774
  4. David Lewin, M.D.Diagnostic Radiology Physician1316950223
  5. Chiedozie Mkpolulu, M.D.Diagnostic Radiology Physician1548571888
  6. Justin Ord, M.D.Diagnostic Radiology Physician1770745846

Verify Sandra Willner Horowitz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck 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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71% fewer Medicare Part D claims than the average diagnostic radiology physician in 2024

15 Medicare Part D claims, against an average of 51 among the 2,711 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Sandra Horowitz15
  2. Specialty average51

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.

Sandra Willner Horowitz among 1,874 diagnostic radiology physician records in Illinois

Sandra Willner Horowitz, M.D. is one of 1,874 diagnostic radiology physician records with a practice address in Illinois. 71% 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 11% of them.

  • NPI issued2006 · 11% of these records are older, 54% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 64% of these records are
  • Record last updated2007 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

19 diagnostic radiology physician records list a practice address in Palos Heights

They are 19 of the 992 NPPES records with a practice address in Palos Heights, and 1,874 diagnostic radiology physician records in Illinois.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Mumtaz Chinoy, M.D.Palos Heights, IL 604631720091713
  2. Fawn Cohen, M.D.Palos Heights, IL 604631780852822
  3. Paresh Dixit, M.D.Palos Heights, IL 604631306824511
  4. Daniel Frankel, M.D.Palos Heights, IL 604631497747497
  5. David Garagiola, M.D.Palos Heights, IL 604631760495774
  6. Jon Jester, M.D.Palos Heights, IL 604631093715864
  7. David Lewin, M.D.Palos Heights, IL 604631316950223
  8. Frank Matheu, D.O.Palos Heights, IL 604631700864998

Common questions

What is Sandra Willner Horowitz, M.D.'s NPI number?

Sandra Willner Horowitz, M.D.'s National Provider Identifier (NPI) is 1194738161, issued on Aug 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sandra Willner Horowitz, M.D. located?

The NPPES record lists a practice address at 11800 Southwest Hwy, Palos Heights, IL, 60463. Phone: (708) 361-0220. Providers update this record themselves, so call before visiting.

How can I verify Sandra Willner Horowitz, 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 Sandra Willner Horowitz, M.D. prescribe under Medicare Part D?

In 2024, Sandra Willner Horowitz, M.D. had 15 Medicare Part D claims; the average among diagnostic radiology physician prescribers was 51. 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.