NPPES file of Aug 9, 2026

Mona Lalehzari, MD

Gastroenterology Physician · Chicago, IL

Mona Lalehzari, MD is a gastroenterology physician with a practice address in Chicago, Illinois, and NPI 1952838526, issued on May 15, 2017. Check the license (Illinois 036.152135, 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
1952838526
Name
Mona Lalehzari
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
036.152135 IL
Self-reported in NPPES; status is on the state search
Practice location
3000 N Halsted St Ste 623, Chicago, IL 60657
Phone
(773) 281-5818
Enumerated
May 15, 2017
Record last updated
Apr 21, 2025
Medicare enrollment
Enrolled (PECOS I20230525001607); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 2017
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 3000 N Halsted St Ste 623

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

  1. Carl Atallah, DOGastroenterology Physician1922269190
  2. Manish Dhamija, M.D.Gastroenterology Physician1699977413
  3. Michael Flicker, M.D.Gastroenterology Physician1730375627
  4. Kristin Keating, PA-CPhysician Assistant1275816167
  5. Chiyoko Rando, PA-CPhysician Assistant1073353728

Verify Mona Lalehzari 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 036.152135
    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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73% fewer Medicare Part D claims than the average gastroenterology physician in 2024

215 Medicare Part D claims for 124 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Mona Lalehzari215
  2. Specialty average811

Most prescribed

  1. Gavilyte-G94 claims
  2. Omeprazole26 claims
  3. Sod Sulf-Potass Sulf-Mag Sulf17 claims
  4. Peg-3350 And Electrolytes14 claims
  5. Gavilyte-C12 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: $1,867.68

74 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mona Lalehzari$1,867.68
  2. Specialty average$5,015.95

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. Advanced GI LLCChicago, IL

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

Mona Lalehzari among 887 gastroenterology physician records in Illinois

Mona Lalehzari, MD is one of 887 gastroenterology physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 82% of them.

  • NPI issued2017 · 82% of these records are older, 14% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated2017 · median 2003 among the 643 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 207RG0100X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Illinois

There are 887 gastroenterology physician records in Illinois.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Andrew Albert, MDChicago, IL 606571659413656
  2. Carl Atallah, DOChicago, IL 606571922269190
  3. Manish Dhamija, M.D.Chicago, IL 606571699977413
  4. Michael Flicker, M.D.Chicago, IL 606571730375627
  5. Keikhosrow Ghazanfari, MDChicago, IL 606571831188747
  6. Lawrence Gluskin, MDChicago, IL 606571235109711
  7. Frank Konicek, MDChicago, IL 606571619966447
  8. Krutika Lakhoo, MDChicago, IL 606571407199458

Common questions

What is Mona Lalehzari, MD's NPI number?

Mona Lalehzari, MD's National Provider Identifier (NPI) is 1952838526, issued on May 15, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Mona Lalehzari, MD located?

The NPPES record lists a practice address at 3000 N Halsted St Ste 623, Chicago, IL, 60657. Phone: (773) 281-5818. Providers update this record themselves, so call before visiting.

How can I verify Mona Lalehzari, MD's license?

NPPES lists Illinois license number 036.152135, 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 Mona Lalehzari, MD prescribe under Medicare Part D?

In 2024, Mona Lalehzari, MD had 215 Medicare Part D claims for 124 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.