NPPES file of Aug 9, 2026

Morris Kletzel, MD

Pediatric Hematology & Oncology Physician · Chicago, IL

Morris Kletzel, MD is a pediatric hematology & oncology physician with a practice address in Chicago, Illinois, and NPI 1811964299, issued on Mar 3, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811964299
Name
Morris Kletzel
Credential
MD
Primary taxonomy
Pediatric Hematology & Oncology Physician 2080P0207X
Practice location
2300 Childrens Plaza, Chicago, IL 60614
Phone
(773) 880-3265
Enumerated
Mar 3, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(773) 880-3019
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2300 Childrens Plaza

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

  1. Jan Berger, MDPediatrics Physician1023040367
  2. Kathleen Brady, MDPediatric Emergency Medicine (Pediatrics) Physician1215080460
  3. Wendy Brickman, MDPediatric Endocrinology Physician1386688109
  4. Barbara Burton, MDClinical Genetics (M.D.) Physician1699743088
  5. Diane Calamaras, RN CPNPPediatrics Physician1366490054
  6. Sarah Chamlin, MDDermatology Physician1053370890

Verify Morris Kletzel in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck 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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Morris Kletzel among 119 pediatric hematology & oncology physician records in Illinois

Morris Kletzel, MD is one of 119 pediatric hematology & oncology physician records with a practice address in Illinois. 52% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 68% newer
  • In a Medicare fileNo · 52% of these records are
  • In the CMS Doctors and Clinicians fileNo · 37% of these records are
  • Record last updated2007 · 33% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0207X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Hematology & Oncology Physician providers in Illinois

There are 119 pediatric hematology & oncology physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 pediatric hematology & oncology physician records with the nearest ZIP codes

  1. Reggie Duerst, M.D.Chicago, IL 606141194778142
  2. Stewart Goldman, MDChicago, IL 606141306806245
  3. Yasmin Gosiengfiao, MDChicago, IL 606141902968928
  4. David Jacobsohn, MDChicago, IL 606141346200250
  5. Astrid Mack, MDChicago, IL 606141700948643
  6. Jennifer McNeer, M.D.Chicago, IL 606141053577650
  7. Horace Smith, MDChicago, IL 606141376606210
  8. Alexis Thompson, MDChicago, IL 606141467420737

Common questions

What is Morris Kletzel, MD's NPI number?

Morris Kletzel, MD's National Provider Identifier (NPI) is 1811964299, issued on Mar 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Morris Kletzel, MD located?

The NPPES record lists a practice address at 2300 Childrens Plaza, Chicago, IL, 60614. Phone: (773) 880-3265. Providers update this record themselves, so call before visiting.

How can I verify Morris Kletzel, MD's license?

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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.