MERCY CLINIC GYN ONCOLOGY, LLC
NPI 1669671541
Obstetrics & Gynecology - Gynecologic Oncology in Saint Louis, MO
About Mercy Clinic Gyn Oncology, Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MERCY CLINIC GYN ONCOLOGY, LLC (NPI 1669671541), doing business as Mercy Gyn Oncology, is a healthcare organization registered as a gynecologic oncology in Saint Louis, Missouri and active in the NPI registry since July 2007. The organization lists Jonathan Tyler Sturgeon, Cfo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Group Practice 1
Accepted Insurance
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)
Mercy Clinic Gyn Oncology, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by February 28, 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
4Medicare enrollment records show 4 clinicians reassign Medicare billing to Mercy Clinic Gyn Oncology, LLC, which bills Medicare for the services they deliver. Of these, 3 practice at this address. They are listed nearest first.
Clinicians, nearest first (4)
Saint Louis, MO 63141
Saint Louis, MO 63141
Saint Louis, MO 63141
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 Mercy Clinic Gyn Oncology, LLC's NPI number?
The NPI number for Mercy Clinic Gyn Oncology, LLC is 1669671541. It was assigned to this organization in the NPPES registry on July 12, 2007. The provider was formerly known as Mercy GYN Oncology.
Where is Mercy Clinic Gyn Oncology, LLC located?
Mercy Clinic Gyn Oncology, LLC is located at 607 S New Ballas Rd Suite 2350, Saint Louis, MO 63141. The listed phone number is (314) 251-4260.
What is Mercy Clinic Gyn Oncology, LLC's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecologic Oncology, with taxonomy code 207VX0201X.
Is Mercy Clinic Gyn Oncology, LLC enrolled in Medicare?
Yes. Mercy Clinic Gyn Oncology, LLC is registered in the Medicare PECOS enrollment system.
When is Mercy Clinic Gyn Oncology, LLC'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 (Missouri, Clinic/Group Practice) is due for revalidation by February 28, 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 Mercy Clinic Gyn Oncology, LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians reassign their Medicare billing to Mercy Clinic Gyn Oncology, LLC, in Gynecological Oncology, Nurse Practitioner and Obstetrics/Gynecology. 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. Of these, 3 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Mercy Clinic Gyn Oncology, LLC accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 2 other insurers list Mercy Clinic Gyn Oncology, LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Mercy Clinic Gyn Oncology, LLC was last updated on March 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.
# Mercy Clinic Gyn Oncology, Llc · NPI 1669671541
Gynecologic Oncology organization in Saint Louis, Missouri. Organization record, active in the CMS NPPES registry since July 12, 2007.
## Identity
- **NPI:** 1669671541 (Entity type: Organization)
- **Enumerated:** July 12, 2007
- **Primary specialty:** Obstetrics & Gynecology - Gynecologic Oncology · taxonomy 207VX0201X
- **Also known as:** Mercy GYN Oncology (Former Legal Business Name)
- **Organization subpart:** Yes (part of Mercy Clinic East Communities)
- **Authorized official:** Jonathan Sturgeon, CFO
## Practice location
- **Address:** 607 S NEW BALLAS RD, SUITE 2350, Saint Louis, MO 63141-8219
- **Phone:** (314) 251-4260 · **Fax:** (314) 251-4261
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** February 28, 2027 (Non-DME Part B, Missouri, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 4 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (2), Gynecological Oncology (1), Obstetrics/Gynecology (1); 3 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 2, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1669671541) · Data from the CMS NPPES public registry.