Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory Cizek, M.D.

Diagnostic Radiology Physician in Saint Louis, MO · enumerated 2005 · practices at Radiology and Imaging Management Services, LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1477544724

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Gregory Cizek

Credential M.D.

Sex Male

Practice address 9930 Watson Rd, Saint Louis, MO, 63126

Phone (314) 984-8827

Fax (314) 984-0736

Enumeration date Nov 3, 2005

Last updated in NPPES Sep 21, 2012

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 105428 (MO) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
110069	Other	MO	GHP
5872678	Other	MO	AETNA
144352	Other	MO	BCBS
000000010591	Other	MO	ESSENCE
288546	Other	MO	HEALTHLINK
1600300	Other	MO	UHC
208265116	Medicaid	MO	-
F82310	Other	MO	MERCY

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Gregory Cizek's NPI record?

Cross-check NPI 1477544724 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1477544724 active?

Yes, as of the latest NPPES snapshot, NPI 1477544724 is active (record last updated 2012-09-21).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-09-21.