Katherine Maria Siciliano Messing, M.D.
Pediatrics Physician · Chicago, IL
Katherine Maria Siciliano Messing, M.D. is a pediatrics physician with a practice address in Chicago, Illinois, and NPI 1215193461, issued on Aug 6, 2008. Check the license (Illinois 125054306, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Katherine Maria Siciliano Messing
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 125054306 IL
Self-reported in NPPES; status is on the state search - Practice location
- 5721 S Maryland Ave, Chicago, IL 60637
- Phone
- (888) 824-0200
- Enumerated
- Aug 6, 2008
- Record last updated
- Aug 6, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 3,176 in Illinois → Look up another NPI →
Also registered at 5721 S Maryland Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kelley Anderson, APNNeonatal Nurse Practitioner1013674993
- Ariunaa Bayanjargal, MD,PHDPediatrics Physician1700716438
- Jaime Braverman, MDPediatrics Physician1346509346
- Lauren Conti, MDPediatrics Physician1851543359
- Martin Duncan, M.D.Pediatrics Physician1508271255
Verify Katherine Maria Siciliano Messing in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 125054306Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $24.81
1 payment: food and beverage; the largest payer was Supernus Pharmaceuticals, Inc. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Katherine Maria Siciliano Messing among 3,176 pediatrics physician records in Illinois
Katherine Maria Siciliano Messing, M.D. is one of 3,176 pediatrics physician records with a practice address in Illinois. 32% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 49% of them.
- NPI issued2008 · 49% of these records are older, 45% newer
- In a Medicare fileYes · 32% of these records are
- In the CMS Doctors and Clinicians fileNo · 7% of these records are
- Record last updated2008 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,142 pediatrics physician records list a practice address in Chicago
They are 1,142 of the 63,379 NPPES records with a practice address in Chicago, and 3,176 pediatrics physician records in Illinois.
All 3,176 in Illinois → Every provider in Chicago → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Maria AlkureishiChicago, IL 606371326176645
- Deborah BurnetChicago, IL 606371801913512
- Icy Cade-BellChicago, IL 606371437213014
- Helen FrommeChicago, IL 606371750431797
- Nirupama MahidharaChicago, IL 606371205862422
- Alisa McQueenChicago, IL 606371104865039
- James MitchellChicago, IL 606371487771150
- Patrick Myers, M.D.Chicago, IL 606371043364474
Common questions
What is Katherine Maria Siciliano Messing, M.D.'s NPI number?
Katherine Maria Siciliano Messing, M.D.'s National Provider Identifier (NPI) is 1215193461, issued on Aug 6, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Maria Siciliano Messing, M.D. located?
The NPPES record lists a practice address at 5721 S Maryland Ave, Chicago, IL, 60637. Phone: (888) 824-0200. Providers update this record themselves, so call before visiting.
How can I verify Katherine Maria Siciliano Messing, M.D.'s license?
NPPES lists Illinois license number 125054306, 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.
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.