NPPES file of Aug 9, 2026

Jason Nathaniel Macklis, M.D.

Hematology & Oncology Physician · Park Ridge, IL

Jason Nathaniel Macklis, M.D. is a hematology & oncology physician with a practice address in Park Ridge, Illinois, and NPI 1003136458, issued on Jun 8, 2010. Check the license (Illinois 036133462, 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
1003136458
Name
Jason Nathaniel Macklis
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
036133462 IL
Self-reported in NPPES; status is on the state search
Practice location
1700 Luther LN Ste 2200, Park Ridge, IL 60068
Phone
(847) 268-8577
Enumerated
Jun 8, 2010
Record last updated
Sep 25, 2025
Medicare enrollment
Enrolled (PECOS I20170621002218); accepts Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 2010
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 hematology & oncology physician records → All 666 in Illinois → Look up another NPI →

Also registered at 1700 Luther LN Ste 2200

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

  1. Sabree Abedrabo, MDHematology & Oncology Physician1790344471
  2. Taha Alrifai, MDHematology & Oncology Physician1023463932
  3. Harrah Chiang, DOHematology & Oncology Physician1467102640
  4. Ari Hakimian, DOHematology & Oncology Physician1447888276
  5. Christie Hancock, M.D.Hematology & Oncology Physician1083050413
  6. Michael JacobsHematology & Oncology Physician1558854745

Verify Jason Nathaniel Macklis 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 036133462    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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68% more Medicare Part D claims than the average hematology & oncology physician in 2024

1,471 Medicare Part D claims for 188 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 91 claims were for opioids.

  1. Jason Macklis1,471
  2. Specialty average877

Most prescribed

  1. Eliquis146 claims
  2. Prochlorperazine Maleate110 claims
  3. Dexamethasone101 claims
  4. Tagrisso80 claims
  5. Levothyroxine Sodium70 claims
  6. Prednisone66 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.

Bills Medicare through one group practice

  1. Advocate Health And Hospitals CorporationPark Ridge, IL

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

Jason Nathaniel Macklis among 666 hematology & oncology physician records in Illinois

Jason Nathaniel Macklis, M.D. is one of 666 hematology & oncology physician records with a practice address in Illinois. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 62% of them.

  • NPI issued2010 · 62% of these records are older, 36% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2010 · median 2003 among the 461 with a school on file
  • Record last updated2025 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Illinois

There are 666 hematology & oncology physician records in Illinois.

All 666 in Illinois → Every provider in Park Ridge → Hematology & Oncology Physician nationwide →

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Jacob Bitran, M.D.Park Ridge, IL 600681407815822
  2. Shams Bufalino, M.D.Park Ridge, IL 600681831488741
  3. Angel Galvez, M.D.Park Ridge, IL 600681144280835
  4. Sigrun Hallmeyer, MDPark Ridge, IL 600681164481412
  5. Christie Hancock, M.D.Park Ridge, IL 600681083050413
  6. Arthur Hooberman, M.D.Park Ridge, IL 600681124088489
  7. Edward James, M.D.,Park Ridge, IL 600681548442007
  8. Pamela Kaiser, M.D.Park Ridge, IL 600681184684821

Common questions

What is Jason Nathaniel Macklis, M.D.'s NPI number?

Jason Nathaniel Macklis, M.D.'s National Provider Identifier (NPI) is 1003136458, issued on Jun 8, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Jason Nathaniel Macklis, M.D. located?

The NPPES record lists a practice address at 1700 Luther LN Ste 2200, Park Ridge, IL, 60068. Phone: (847) 268-8577. Providers update this record themselves, so call before visiting.

How can I verify Jason Nathaniel Macklis, M.D.'s license?

NPPES lists Illinois license number 036133462, 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 Jason Nathaniel Macklis, M.D. prescribe under Medicare Part D?

In 2024, Jason Nathaniel Macklis, M.D. had 1,471 Medicare Part D claims for 188 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.