NPPES file of Aug 9, 2026

Alexander D. Reisner, MD

Hospitalist Physician · Chicago, IL

Alexander D. Reisner, MD is a hospitalist physician with a practice address in Chicago, Illinois, and NPI 1578907572, issued on Apr 20, 2013. Check the license (Illinois 036144788, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1578907572
Name
Alexander D. Reisner
Credential
MD
Primary taxonomy
Hospitalist Physician 208M00000X
License number
036144788 IL
Self-reported in NPPES; status is on the state search
Practice location
251 E Huron St Ste 16-738, Chicago, IL 60611
Phone
(312) 926-5924
Enumerated
Apr 20, 2013
Record last updated
Jan 21, 2026
Fax
(312) 926-6134
Medicare enrollment
Enrolled (PECOS I20180511000001); accepts Medicare assignment
Medical or professional school
Tufts University School Of Medicine, 2013
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 251 E Huron St Ste 16-738

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

  1. Kazuko Abe, P.A.Physician Assistant1881840783
  2. Frank Aguilar, M.D.Hospitalist Physician1659802270
  3. Ali Ahmed, MDHospitalist Physician1154841286
  4. Bilal Al-Khalil, MDHospitalist Physician1255825220
  5. Juan Alban, MDHematology & Oncology Physician1114489192
  6. Mohammed AllawHospitalist Physician1558883058

Verify Alexander D. Reisner 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 036144788
    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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52% fewer Medicare Part D claims than the average hospitalist physician in 2024

252 Medicare Part D claims for 55 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.

  1. Alexander Reisner252
  2. Specialty average521

Most prescribed

  1. Atorvastatin Calcium15 claims
  2. Gabapentin14 claims
  3. Carvedilol11 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.

The MIPS final score for 2023 (Medicare payment program): 97.7 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score75.4
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Northwestern Medical Faculty FoundationChicago, IL

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

Alexander D. Reisner among 1,535 hospitalist physician records in Illinois

Alexander D. Reisner, MD is one of 1,535 hospitalist physician records with a practice address in Illinois. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 43% of them.

  • NPI issued2013 · 43% of these records are older, 52% newer
  • In a Medicare fileYes · 92% of these records are
  • In the CMS Doctors and Clinicians fileYes · 87% of these records are
  • Graduated2013 · median 2013 among the 1,339 with a school on file
  • Record last updated2026 · 32% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in Illinois

There are 1,535 hospitalist physician records in Illinois.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Abby Agulnek, DOChicago, IL 606111689662942
  2. Jeffrey Barsuk, MDChicago, IL 606111528031333
  3. Anjali Desai, M.D.Chicago, IL 606111730126004
  4. Vinnette Forde, MDChicago, IL 606111033174164
  5. Peter Kallas, M.D.Chicago, IL 606111760425797
  6. Michael Kornfeld, MDChicago, IL 606111538198833
  7. Nita Kulkarni, MDChicago, IL 606111790717460
  8. Matthew Landler, MDChicago, IL 606111740212398

Common questions

What is Alexander D. Reisner, MD's NPI number?

Alexander D. Reisner, MD's National Provider Identifier (NPI) is 1578907572, issued on Apr 20, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Alexander D. Reisner, MD located?

The NPPES record lists a practice address at 251 E Huron St Ste 16-738, Chicago, IL, 60611. Phone: (312) 926-5924. Providers update this record themselves, so call before visiting.

How can I verify Alexander D. Reisner, MD's license?

NPPES lists Illinois license number 036144788, 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 Alexander D. Reisner, MD prescribe under Medicare Part D?

In 2024, Alexander D. Reisner, MD had 252 Medicare Part D claims for 55 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.

What is Alexander D. Reisner, MD's MIPS final score?

The 2023 MIPS final score is 97.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.