NPPES file of Aug 9, 2026

Tirajeh Saadatzadeh, M.D., M.S., B.A.

Internal Medicine Physician · Chicago, IL

Tirajeh Saadatzadeh, M.D., M.S., B.A. is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1629425202, issued on May 24, 2016. Check the license (Illinois 036.159488, 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
1629425202
Name
Tirajeh Saadatzadeh
Credential
M.D., M.S., B.A.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
036.159488 IL
036159488 IL
MD2019-0164 NM
S5057 TX
Self-reported in NPPES; status is on the state search
Practice location
676 N Saint Clair St Ste 940, Chicago, IL 60611
Phone
(312) 926-8358
Enumerated
May 24, 2016
Record last updated
Aug 2, 2024
Fax
(312) 926-9630
Medicare enrollment
Enrolled (PECOS I20200408000436); accepts Medicare assignment
Medical or professional school
Indiana University School Of Medicine, 2016
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 676 N Saint Clair St Ste 940

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

  1. Maureen Bolon, MDInfectious Disease Physician1851368773
  2. Diana Cano, NURSE PRACTITIONERNurse Practitioner1891338216
  3. Alexandre Carvalho, MD, MPHHospitalist Physician1386140325
  4. Joshua Craft, MDInfectious Disease Physician1023514791
  5. Muhammad Dhanani, M.D.Infectious Disease Physician1962761809
  6. Alexis Guenette, D.O.Infectious Disease Physician1184979700

Verify Tirajeh Saadatzadeh 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 036.159488
    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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98% fewer Medicare Part D claims than the average internal medicine physician in 2024

55 Medicare Part D claims for 20 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Tirajeh Saadatzadeh55
  2. Specialty average3,176

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 2 group practices

  1. Northwestern Medical Faculty FoundationChicago, IL
  2. Scott And White ClinicTemple, TX

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

Tirajeh Saadatzadeh among 7,238 internal medicine physician records in Illinois

Tirajeh Saadatzadeh, M.D., M.S., B.A. is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 63% of them.

  • NPI issued2016 · 63% of these records are older, 36% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2016 · median 2003 among the 3,580 with a school on file
  • Record last updated2024 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2,867 internal medicine physician records list a practice address in Chicago

They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Kenneth Arbetter, MDChicago, IL 606111336132851
  2. Steven Gallo, MDChicago, IL 606111548253024
  3. Arnold Grauer, MDChicago, IL 606111619960184
  4. James Hall, MDChicago, IL 606111649263153
  5. Frances Langdon, MDChicago, IL 606111063405546
  6. Michael Lee, MDChicago, IL 606111942293451
  7. Hazel Manzano, MDChicago, IL 606111801889316
  8. Chadwick Milstead, MDChicago, IL 606111740273259

Common questions

What is Tirajeh Saadatzadeh, M.D., M.S., B.A.'s NPI number?

Tirajeh Saadatzadeh, M.D., M.S., B.A.'s National Provider Identifier (NPI) is 1629425202, issued on May 24, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Tirajeh Saadatzadeh, M.D., M.S., B.A. located?

The NPPES record lists a practice address at 676 N Saint Clair St Ste 940, Chicago, IL, 60611. Phone: (312) 926-8358. Providers update this record themselves, so call before visiting.

How can I verify Tirajeh Saadatzadeh, M.D., M.S., B.A.'s license?

NPPES lists Illinois license number 036.159488, 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 Tirajeh Saadatzadeh, M.D., M.S., B.A. prescribe under Medicare Part D?

In 2024, Tirajeh Saadatzadeh, M.D., M.S., B.A. had 55 Medicare Part D claims for 20 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.