NPPES file of Aug 9, 2026

Michael Steven Greenbaum, MD

Psychiatry Physician · Libertyville, IL

Michael Steven Greenbaum, MD is a psychiatry physician with a practice address in Libertyville, Illinois, and NPI 1598792970, issued on Jun 28, 2006. Check the license (Illinois 036080963, 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
1598792970
Name
Michael Steven Greenbaum
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
036080963 IL
Self-reported in NPPES; status is on the state search
Practice location
900 Technology Way Ste 320, Libertyville, IL 60048
Phone
(847) 680-2715
Enumerated
Jun 28, 2006
Record last updated
Feb 9, 2022
Fax
(847) 680-3832
Medicare enrollment
Enrolled (PECOS I20040520000595); accepts Medicare assignment
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 900 Technology Way Ste 320

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

  1. Bithynia Abarca, MA, LMFTMarriage & Family Therapist1053866483
  2. Madelyn AlbersProfessional Counselor1548991938
  3. Lizzette Arcos, LCPCProfessional Counselor1255986857
  4. Wesley Arthur, MSW, LSWClinical Social Worker1770318511
  5. Sandy Asoofi, MSWSocial Worker1023861317
  6. Jordyn Cain, LPCProfessional Counselor1700552924

Verify Michael Steven Greenbaum 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 036080963
    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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35% fewer Medicare Part D claims than the average psychiatry physician in 2024

650 Medicare Part D claims for 36 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Michael Greenbaum650
  2. Specialty average1,000

Most prescribed

  1. Bupropion Xl89 claims
  2. Methylphenidate Hcl35 claims
  3. Duloxetine Hcl34 claims
  4. Dextroamphetamine-Amphet Er32 claims
  5. Desvenlafaxine Succinate Er29 claims
  6. Escitalopram Oxalate28 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: $998.80

46 payments; by number, the most common kind was food and beverage; the largest payer was Iti, Inc. (d/b/a Intra-Cellular Therapies, Inc.). The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Greenbaum$998.80
  2. Specialty average$4,954.93

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Michael Steven Greenbaum among 2,147 psychiatry physician records in Illinois

Michael Steven Greenbaum, MD 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 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 65% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 41% of these records are
  • Graduated1988 · median 2004 among the 877 with a school on file
  • Record last updated2022 · 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).

Psychiatry Physician providers in Illinois

There are 2,147 psychiatry physician records in Illinois.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Paul Berkowitz, M.D.Libertyville, IL 600481275564197
  2. Elvina Berman, M.DLibertyville, IL 600481366487688
  3. Elisabeth Desapereira, MDLibertyville, IL 600481134196678
  4. Nicole Jacques, LSWLibertyville, IL 600481013870609
  5. Qurat Ul Ain KhanLibertyville, IL 600481487817128
  6. John Schuler, PSY.DLibertyville, IL 600481457468035
  7. Sandra Swain, M.D.Libertyville, IL 600481295811016
  8. Timothy Ts'o, M.D., PH.D.Libertyville, IL 600481689780892

Common questions

What is Michael Steven Greenbaum, MD's NPI number?

Michael Steven Greenbaum, MD's National Provider Identifier (NPI) is 1598792970, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael Steven Greenbaum, MD located?

The NPPES record lists a practice address at 900 Technology Way Ste 320, Libertyville, IL, 60048. Phone: (847) 680-2715. Providers update this record themselves, so call before visiting.

How can I verify Michael Steven Greenbaum, MD's license?

NPPES lists Illinois license number 036080963, 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 Michael Steven Greenbaum, MD prescribe under Medicare Part D?

In 2024, Michael Steven Greenbaum, MD had 650 Medicare Part D claims for 36 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.