NPPES file of Aug 9, 2026

Robert D. Zimmerman, M.D.

Urology Physician · Oak Park, IL

Robert D. Zimmerman, M.D. is a urology physician with a practice address in Oak Park, Illinois, and NPI 1043355530, issued on Feb 21, 2007. Check the license (Illinois 036054963, 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
1043355530
Name
Robert D. Zimmerman
Credential
M.D.
Primary taxonomy
Urology Physician 208800000X
License number
036054963 IL
Self-reported in NPPES; status is on the state search
Practice location
1 Erie CT, Oak Park, IL 60302
Phone
(708) 386-7888
Enumerated
Feb 21, 2007
Record last updated
Jun 7, 2024
Fax
(708) 386-2784
Medicaid ID
036054963 IL
Medicare enrollment
Enrolled (PECOS I20070914000479); accepts Medicare assignment
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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8 nearest urology physician records → All 629 in Illinois → Look up another NPI →

Also registered at 1 Erie CT

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

  1. Candace Asiedu-Falkner, MDFamily Medicine Physician1972867976
  2. Asfiya Azizuddin, MDFamily Medicine Physician1013238609
  3. Jane Bahk, M.D.Ophthalmology Physician1639158314
  4. Michael Barnish, ATCAthletic Trainer1558335489
  5. Thomas Bielanski, M.D.Family Medicine Physician1326089160
  6. Kenneth Blair, M.D.Family Medicine Physician1134148182

Verify Robert D. Zimmerman 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 036054963    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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90% fewer Medicare Part D claims than the average urology physician in 2024

140 Medicare Part D claims for 39 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D.

  1. Robert Zimmerman140
  2. Specialty average1,340

Most prescribed

  1. Tamsulosin Hcl32 claims
  2. Butalbital-Acetaminophen-Caffe12 claims
  3. Oxybutynin Chloride Er11 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: $105.69

4 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 9,340 providers of this specialty with any payment received $3,800.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Robert Zimmerman$105.69
  2. Specialty average$3,800.04

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

  1. Metro Chicago Surgical Oncology LLCOak Park, IL

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

Robert D. Zimmerman among 629 urology physician records in Illinois

Robert D. Zimmerman, M.D. is one of 629 urology physician records with a practice address in Illinois. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 46% of them.

  • NPI issued2007 · 46% of these records are older, 47% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 54% of these records are
  • Graduated1976 · median 2002 among the 341 with a school on file
  • Record last updated2024 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Urology Physician providers in Illinois

There are 629 urology physician records in Illinois.

All 629 in Illinois → Every provider in Oak Park → Urology Physician nationwide →

The 8 urology physician records with the nearest ZIP codes

  1. Earl Wendel, M.D.Oak Park, IL 603021841612413
  2. Fred Tomera, MDRiver Forest, IL 603051407994213
  3. Joseph Kucera, MDBerwyn, IL 604021699708552
  4. Leon Lome, MDEvanston, IL 602021871638338
  5. Peter Misurec, M.D.Berwyn, IL 604021114087962
  6. Mark Schacht, MDEvanston, IL 602021265577621
  7. Samer Totonchi, D.O.Berwyn, IL 604021467689281
  8. Peter Vaselopulos, MDEvanston, IL 602021578608949

Common questions

What is Robert D. Zimmerman, M.D.'s NPI number?

Robert D. Zimmerman, M.D.'s National Provider Identifier (NPI) is 1043355530, issued on Feb 21, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Robert D. Zimmerman, M.D. located?

The NPPES record lists a practice address at 1 Erie CT, Oak Park, IL, 60302. Phone: (708) 386-7888. Providers update this record themselves, so call before visiting.

How can I verify Robert D. Zimmerman, M.D.'s license?

NPPES lists Illinois license number 036054963, 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 Robert D. Zimmerman, M.D. prescribe under Medicare Part D?

In 2024, Robert D. Zimmerman, M.D. had 140 Medicare Part D claims for 39 beneficiaries; the average among urology physician prescribers was 1,340. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.