Kyle C. Niziolek, MD
Critical Care Medicine (Internal Medicine) Physician · Saint Louis, MO
Kyle C. Niziolek, MD is a critical care medicine (internal medicine) physician with a practice address in Saint Louis, Missouri, and NPI 1427314095, issued on Apr 8, 2012. Check the license (Missouri 2023014539, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Kyle C. Niziolek
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- 2023014539 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110
- Phone
- (800) 862-9980
- Enumerated
- Apr 8, 2012
- Record last updated
- Apr 17, 2025
- Fax
- (314) 362-1185
- Medicaid ID
- 200123380 MO
- Medicare enrollment
- Enrolled (PECOS I20230825000856); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 178 in Missouri → Look up another NPI →
Also registered at 1 Barnes Jewish Hospital Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kyle C. Niziolek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2023014539Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 2 group practices
- Washington UniversitySaint Louis, MO
- Washington University Physicians IN Illinois IncShiloh, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kyle C. Niziolek among 178 critical care medicine (internal medicine) physician records in Missouri
Kyle C. Niziolek, MD is one of 178 critical care medicine (internal medicine) physician records with a practice address in Missouri. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 62% of them.
- NPI issued2012 · 62% of these records are older, 29% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2012 · median 2005 among the 144 with a school on file
- Record last updated2025 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Missouri
There are 178 critical care medicine (internal medicine) physician records in Missouri.
All 178 in Missouri → Every provider in Saint Louis → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Matthew Boland, MDSaint Louis, MO 631101578533113
- Rajat Dhar, MDSaint Louis, MO 631101649298191
- Michael Diringer, MDSaint Louis, MO 631101881625390
- Bria Giacomino, DOSaint Louis, MO 631101235491812
- Jan Kasal, MDSaint Louis, MO 631101205879384
- Bryan Kraft, MDSaint Louis, MO 631101760657332
- Susan Lin, MDSaint Louis, MO 631101912247990
- Adam May, MDSaint Louis, MO 631101407110307
Common questions
What is Kyle C. Niziolek, MD's NPI number?
Kyle C. Niziolek, MD's National Provider Identifier (NPI) is 1427314095, issued on Apr 8, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Kyle C. Niziolek, MD located?
The NPPES record lists a practice address at 1 Barnes Jewish Hospital Plz, Saint Louis, MO, 63110. Phone: (800) 862-9980. Providers update this record themselves, so call before visiting.
How can I verify Kyle C. Niziolek, MD's license?
NPPES lists Missouri license number 2023014539, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. 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.