DR. GREGORY JOSEPH BAILEY M.D.
NPI 1457351926
Neurological Surgery in Saint Louis, MO
About Dr. Gregory Joseph Bailey M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GREGORY JOSEPH BAILEY M.D. (NPI 1457351926) is an individual neurological surgery provider in Saint Louis, Missouri, licensed in Missouri (36457) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Gregory Joseph Bailey M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Gregory Bailey reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Dallas, TX 75244
- Reassigned Medicare billing, Utah enrollment
- 145 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63117 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT LOUIS, MO 63117
SAINT LOUIS, MO 63117
SAINT LOUIS, MO 63117
SAINT LOUIS, MO 63117
SAINT LOUIS, MO 63117
SAINT LOUIS, MO 63117
SAINT LOUIS, MO 63117
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Gregory Bailey's NPI number?
The NPI number for Gregory Bailey is 1457351926. It was assigned to this individual provider in the NPPES registry on July 27, 2005.
Where is Gregory Bailey located?
Gregory Bailey practices at 1035 Bellevue Ave Ste 500, Saint Louis, MO 63117. The listed phone number is (314) 925-4773.
What is Gregory Bailey's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
Is Gregory Bailey enrolled in Medicare?
Yes. Gregory Bailey is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Gregory Bailey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Bailey reassigns Medicare benefits to Signify Health, LLC (Dallas, TX). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gregory Bailey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Gregory Bailey was last updated on August 3, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.