ST MARY MERCY ONCOLOGY PRACTICE
NPI 1225306392
Clinic/Center - Oncology in Livonia, MI
About St Mary Mercy Oncology Practice NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ST MARY MERCY ONCOLOGY PRACTICE (NPI 1225306392) is a healthcare organization registered as an oncology in Livonia, Michigan and active in the NPI registry since December 2011. The organization lists David Spivey, President / Ceo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
St Mary Mercy Oncology Practice is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by January 31, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
59Medicare enrollment records show 59 clinicians reassign Medicare billing to St Mary Mercy Oncology Practice, which bills Medicare for the services they deliver. Of these, 5 practice at this address and 28 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 11
Nearest to this location (20)
See all 59Livonia, MI 48154
Livonia, MI 48154
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 St Mary Mercy Physician Practices's NPI number?
The NPI number for St Mary Mercy Physician Practices is 1225306392. It was assigned to this organization in the NPPES registry on December 5, 2011. The provider is doing business as St Mary Mercy Oncology Practice.
Where is St Mary Mercy Physician Practices located?
St Mary Mercy Physician Practices is located at 14555 Levan Rd Suite 112, Livonia, MI 48154. The listed phone number is (734) 779-2123.
What is St Mary Mercy Physician Practices's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Oncology, with taxonomy code 261QX0200X.
Is St Mary Mercy Physician Practices enrolled in Medicare?
Yes. St Mary Mercy Physician Practices is registered in the Medicare PECOS enrollment system.
When is St Mary Mercy Physician Practices's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Michigan, Clinic/Group Practice) is due for revalidation by January 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through St Mary Mercy Physician Practices?
According to the CMS Revalidation Reassignment List (October 2026 release), 59 clinicians in 11 Medicare specialties reassign their Medicare billing to St Mary Mercy Physician Practices. 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 Psychiatry (13), Family Practice (12) and Nurse Practitioner (12). Of these, 5 practice at this address and 28 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 St Mary Mercy Physician Practices was last updated on November 3, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# St Mary Mercy Oncology Practice · NPI 1225306392
Oncology organization in Livonia, Michigan. Organization record, active in the CMS NPPES registry since December 5, 2011.
## Identity
- **NPI:** 1225306392 (Entity type: Organization)
- **Enumerated:** December 5, 2011
- **Primary specialty:** Clinic/Center - Oncology · taxonomy 261QX0200X
- **Legal business name:** St Mary Mercy Physician Practices
- **Organization subpart:** Yes (part of St Mary Mercy Physician Practices)
- **Authorized official:** David Spivey, PRESIDENT / CEO
## Practice location
- **Address:** 14555 LEVAN RD, SUITE 112, Livonia, MI 48154-5083
- **Phone:** (734) 779-2123 · **Fax:** (734) 779-2163
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** January 31, 2027 (Non-DME Part B, Michigan, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 59 clinicians in 11 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Psychiatry (13), Family Practice (12), Nurse Practitioner (12); 5 practice at this address and 28 within 10 miles; [full list](https://npiprofile.com/npi/1225306392/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 3, 2015
- **Other identifiers:** Other 0H27566 (MI); Medicare PIN 0P55530
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Source: [NPI Profile](https://npiprofile.com/npi/1225306392) · Data from the CMS NPPES public registry.