NPPES file of Aug 9, 2026

Dorothy Z. Warzocha, MD

Family Medicine Physician · Naperville, IL

Dorothy Z. Warzocha, MD is a family medicine physician with a practice address in Naperville, Illinois, and NPI 1598716722, issued on May 12, 2006. Check the license (Illinois 036-097411, 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
1598716722
Name
Dorothy Z. Warzocha
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
036-097411 IL
Self-reported in NPPES; status is on the state search
Practice location
10334 S Route 59 Ste 4003, Naperville, IL 60564
Phone
(630) 967-2000
Enumerated
May 12, 2006
Record last updated
Aug 29, 2023
Medicaid ID
036097411 IL
Medicare enrollment
Enrolled (PECOS I20111209000631); accepts Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 1995
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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Verify Dorothy Z. Warzocha 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 036-097411
    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 family medicine physician in 2024

362 Medicare Part D claims for 167 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Dorothy Warzocha362
  2. Specialty average3,544

Most prescribed

  1. Fluticasone Propionate36 claims
  2. Prednisone35 claims
  3. Albuterol Sulfate Hfa19 claims
  4. Losartan Potassium19 claims
  5. Eliquis13 claims
  6. Nitrofurantoin Mono-Macro12 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: $24.89

1 payment: food and beverage; the largest payer was Exact Sciences Corporation. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Dorothy Warzocha$24.89
  2. Specialty average$902.55

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. Dupage Medical Group LtdWheaton, IL

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

Dorothy Z. Warzocha among 6,215 family medicine physician records in Illinois

Dorothy Z. Warzocha, MD is one of 6,215 family medicine physician records with a practice address in Illinois. 78% 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 59% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1995 · median 2006 among the 3,714 with a school on file
  • Record last updated2023 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

86 family medicine physician records list a practice address in Naperville

They are 86 of the 4,634 NPPES records with a practice address in Naperville, and 6,215 family medicine physician records in Illinois.

The 8 family medicine physician records with the nearest ZIP codes

  1. Nicholas Apostolopoulos, MDNaperville, IL 605641790870822
  2. Deborah Coleman, MDNaperville, IL 605641427161678
  3. James CunnarNaperville, IL 605641164538617
  4. Thomas Fry, D.O.Naperville, IL 605641619085206
  5. Joseph Giordano, DONaperville, IL 605641275520934
  6. Brian Lenahan, D.O.Naperville, IL 605641053462788
  7. Barbara Opalka, D.O.Naperville, IL 605641063404150
  8. Michael Peters, MDNaperville, IL 605641023005097

Common questions

What is Dorothy Z. Warzocha, MD's NPI number?

Dorothy Z. Warzocha, MD's National Provider Identifier (NPI) is 1598716722, issued on May 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dorothy Z. Warzocha, MD located?

The NPPES record lists a practice address at 10334 S Route 59 Ste 4003, Naperville, IL, 60564. Phone: (630) 967-2000. Providers update this record themselves, so call before visiting.

How can I verify Dorothy Z. Warzocha, MD's license?

NPPES lists Illinois license number 036-097411, 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 Dorothy Z. Warzocha, MD prescribe under Medicare Part D?

In 2024, Dorothy Z. Warzocha, MD had 362 Medicare Part D claims for 167 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.