NPPES file of Aug 9, 2026

Alexandra Leigh Aaronson, M.D.

Psychiatry Physician · Chicago, IL

Alexandra Leigh Aaronson, M.D. is a psychiatry physician with a practice address in Chicago, Illinois, and NPI 1881937928, issued on Mar 27, 2013. Check the license (Illinois 036138692, 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
1881937928
Name
Alexandra Leigh Aaronson
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
036138692 IL
Self-reported in NPPES; status is on the state search
Practice location
446 E Ontario St, Chicago, IL 60611
Phone
(410) 236-5873
Enumerated
Mar 27, 2013
Record last updated
Jul 6, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20161028001037); accepts Medicare assignment
Medical or professional school
University Of Maryland School Of Medicine, 2013
Telehealth
Offers telehealth (CMS)
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 446 E Ontario St

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

  1. Gaurava Agarwal, M.D.Psychiatry Physician1043467871
  2. Alison Alden, PH.D.Counselor1760762686
  3. Thomas Allen, MDPsychiatry Physician1891900197
  4. Chetan Amar, M.D.Student in an Organized Health Care Education/Training Program1053775585
  5. Carolyn Auffenberg, M.D.Psychiatry Physician1306132089
  6. Shirley Baron, PHDClinical Psychologist1265429195

Verify Alexandra Leigh Aaronson 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 036138692
    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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90% fewer Medicare Part D claims than the average psychiatry physician in 2024

95 Medicare Part D claims for 11 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Alexandra Aaronson95
  2. Specialty average1,000

Most prescribed

  1. Clonazepam27 claims
  2. Dextroamphetamine-Amphetamine18 claims
  3. Dextroamphetamine-Amphet Er15 claims
  4. Lorazepam15 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 practice group's MIPS final score for 2023 (Medicare payment program): 87.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score70.8
  2. Costout of 100 · 30%52.8
  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, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. The Board OF Trustees OF The University OF IllinoisChicago, IL

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

Alexandra Leigh Aaronson among 2,147 psychiatry physician records in Illinois

Alexandra Leigh Aaronson, M.D. is one of 2,147 psychiatry physician records with a practice address in Illinois. 69% 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 64% of them.

  • NPI issued2013 · 64% of these records are older, 34% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 41% of these records are
  • Graduated2013 · median 2004 among the 877 with a school on file
  • Record last updated2017 · 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 2084P0800X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

841 psychiatry physician records list a practice address in Chicago

They are 841 of the 63,379 NPPES records with a practice address in Chicago, and 2,147 psychiatry physician records in Illinois.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Ghada Albeheary, MDChicago, IL 606111477534576
  2. Joan Anzia, MDChicago, IL 606111528039658
  3. Lydia Breen, MDChicago, IL 606111518926203
  4. Kenneth Cohen, M.D.Chicago, IL 606111952366551
  5. Pedro Dago, MDChicago, IL 606111689637639
  6. John Gerber, M.D.Chicago, IL 606111447216544
  7. Larry Goldman, M.D.Chicago, IL 606111851356752
  8. Jonathon Goldman, M.D.Chicago, IL 606111427013374

Common questions

What is Alexandra Leigh Aaronson, M.D.'s NPI number?

Alexandra Leigh Aaronson, M.D.'s National Provider Identifier (NPI) is 1881937928, issued on Mar 27, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Alexandra Leigh Aaronson, M.D. located?

The NPPES record lists a practice address at 446 E Ontario St, Chicago, IL, 60611. Phone: (410) 236-5873. Providers update this record themselves, so call before visiting.

How can I verify Alexandra Leigh Aaronson, M.D.'s license?

NPPES lists Illinois license number 036138692, 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 Alexandra Leigh Aaronson, M.D. prescribe under Medicare Part D?

In 2024, Alexandra Leigh Aaronson, M.D. had 95 Medicare Part D claims for 11 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

What is Alexandra Leigh Aaronson, M.D.'s MIPS final score?

The 2023 MIPS final score is 87.1 of 100, reported for the practice group. 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.