ASCENSION ST JOHN HOSPITAL
NPI 1023149473
Psychiatry & Neurology - Neurology in Detroit, MI
About Ascension St John Hospital NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ASCENSION ST JOHN HOSPITAL (NPI 1023149473) is a healthcare organization registered as a neurology in Detroit, Michigan and active in the NPI registry since March 2007. The organization lists Christopher J Palazzolo, V.p. - Finance, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ascension St John Hospital is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
516Medicare enrollment records show 516 clinicians reassign Medicare billing to Ascension St John Hospital, which bills Medicare for the services they deliver. Of these, 29 practice at this address and 313 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 39
Nearest to this location (20)
See all 516Detroit, MI 48236
Grosse Pointe, MI 48236
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Ascension St John Hospital's NPI number?
The NPI number for Ascension St John Hospital is 1023149473. It was assigned to this organization in the NPPES registry on March 8, 2007.
Where is Ascension St John Hospital located?
Ascension St John Hospital is located at 22101 Moross Rd, Detroit, MI 48236. The listed phone number is (586) 753-0011.
What is Ascension St John Hospital's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Ascension St John Hospital enrolled in Medicare?
Yes. Ascension St John Hospital is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Ascension St John Hospital?
According to the CMS Revalidation Reassignment List (October 2026 release), 516 clinicians in 39 Medicare specialties reassign their Medicare billing to Ascension St John Hospital. A 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 the clinician's services. The largest specialties are Nurse Practitioner (67), Obstetrics/Gynecology (64) and Internal Medicine (57). Of these, 29 practice at this address and 313 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Ascension St John Hospital was last updated on March 31, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Ascension St John Hospital · NPI 1023149473
Neurology organization in Detroit, Michigan. Organization record, active in the CMS NPPES registry since March 8, 2007.
## Identity
- **NPI:** 1023149473 (Entity type: Organization)
- **Enumerated:** March 8, 2007
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **Organization subpart:** No
- **Authorized official:** Christopher Palazzolo, V.P. - FINANCE
## Practice location
- **Address:** 22101 MOROSS RD, Detroit, MI 48236-2148
- **Phone:** (586) 753-0011
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 516 clinicians in 39 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (67), Obstetrics/Gynecology (64), Internal Medicine (57); 29 practice at this address and 313 within 10 miles; [full list](https://npiprofile.com/npi/1023149473/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 31, 2020
- **Other identifiers:** Other 0Q24564 (MI)
---
Source: [NPI Profile](https://npiprofile.com/npi/1023149473) · Data from the CMS NPPES public registry.