NPPES file of Aug 9, 2026

Zachary Rubin

Allergy & Immunology Physician · Elmhurst, IL

Zachary Rubin is an allergy & immunology physician with a practice address in Elmhurst, Illinois, and NPI 1750775185, issued on Mar 24, 2015. Check the license (Illinois 36145196, 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
1750775185
Name
Zachary Rubin
Primary taxonomy
Allergy & Immunology Physician 207K00000X
License number
36145196 IL
Self-reported in NPPES; status is on the state search
Practice location
360 W Butterfield RD Ste 140, Elmhurst, IL 60126
Phone
(630) 574-0460
Enumerated
Mar 24, 2015
Record last updated
Jul 14, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(630) 574-0470
Medicare enrollment
Enrolled (PECOS I20200807000826); accepts Medicare assignment
Medical or professional school
Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 2015
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 360 W Butterfield RD Ste 140

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

  1. David Knysak, MDAllergy & Immunology Physician1609876101
  2. Tammy Laas, APNFamily Nurse Practitioner1720331473

Verify Zachary Rubin 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 36145196
    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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71% fewer Medicare Part D claims than the average allergy & immunology physician in 2024

214 Medicare Part D claims for 76 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.

  1. Zachary Rubin214
  2. Specialty average741

Most prescribed

  1. Montelukast Sodium43 claims
  2. Fluticasone Propionate30 claims
  3. Albuterol Sulfate Hfa25 claims
  4. Azelastine Hcl23 claims
  5. Breo Ellipta11 claims
  6. Fluticasone-Salmeterol11 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: $41,997.25

101 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Zachary Rubin$41,997
  2. Specialty average$8,322

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. Oak Brook Allergists SCNaperville, IL

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

Zachary Rubin among 162 allergy & immunology physician records in Illinois

Zachary Rubin is one of 162 allergy & immunology physician records with a practice address in Illinois. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 84% of them.

  • NPI issued2015 · 84% of these records are older, 14% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2015 · median 2001 among the 114 with a school on file
  • Record last updated2020 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy & Immunology Physician providers in Illinois

There are 162 allergy & immunology physician records in Illinois.

The 8 allergy & immunology physician records with the nearest ZIP codes

  1. David Knysak, MDElmhurst, IL 601261609876101
  2. Jeffrey Kulik, MDElmhurst, IL 601261134219942
  3. Richard Hrdlicka, MDGeneva, IL 601341164595146
  4. Dawn Beckman, MDGlen Ellyn, IL 601371851379200
  5. Greg Sharon, M.D.,Bloomingdale, IL 601081619950250
  6. Baltazar Remigio Espiritu, MDMaywood, IL 601531710964663
  7. Amee Patel, M.D.Maywood, IL 601531598144321
  8. Joyce Rabbat, MDMaywood, IL 601531144486416

Common questions

What is Zachary Rubin's NPI number?

Zachary Rubin's National Provider Identifier (NPI) is 1750775185, issued on Mar 24, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Zachary Rubin located?

The NPPES record lists a practice address at 360 W Butterfield RD Ste 140, Elmhurst, IL, 60126. Phone: (630) 574-0460. Providers update this record themselves, so call before visiting.

How can I verify Zachary Rubin's license?

NPPES lists Illinois license number 36145196, 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 Zachary Rubin prescribe under Medicare Part D?

In 2024, Zachary Rubin had 214 Medicare Part D claims for 76 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.