MEMORIAL SOLID TUMOR GROUP
NPI 1699746172
Internal Medicine in New York, NY
About Memorial Solid Tumor Group NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MEMORIAL SOLID TUMOR GROUP (NPI 1699746172) is a healthcare organization registered as an internal medicine in New York, New York and active in the NPI registry since January 2006. The organization lists Charles A Ryke, Manager, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Group Practice 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)
Memorial Solid Tumor Group is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
510Medicare enrollment records show 510 clinicians reassign Medicare billing to Memorial Solid Tumor Group, which bills Medicare for the services they deliver. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 10
Nearest to this location (20)
See all 510Source: 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 Memorial Solid Tumor Group's NPI number?
The NPI number for Memorial Solid Tumor Group is 1699746172. It was assigned to this organization in the NPPES registry on January 31, 2006.
Where is Memorial Solid Tumor Group located?
Memorial Solid Tumor Group is located at 1275 York Ave, New York, NY 10021. The listed phone number is (646) 227-3813.
What is Memorial Solid Tumor Group's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Memorial Solid Tumor Group enrolled in Medicare?
Yes. Memorial Solid Tumor Group is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Memorial Solid Tumor Group?
According to the CMS Revalidation Reassignment List (October 2026 release), 510 clinicians in 10 Medicare specialties reassign their Medicare billing to Memorial Solid Tumor Group. 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 Medical Oncology (204), Nurse Practitioner (196) and Internal Medicine (62). Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Memorial Solid Tumor Group was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Memorial Solid Tumor Group · NPI 1699746172
Internal Medicine organization in New York, New York. Organization record, active in the CMS NPPES registry since January 31, 2006.
## Identity
- **NPI:** 1699746172 (Entity type: Organization)
- **Enumerated:** January 31, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** Charles Ryke, MANAGER
## Practice location
- **Address:** 1275 YORK AVE, New York, NY 10021-6007
- **Phone:** (646) 227-3813
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 510 clinicians in 10 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Medical Oncology (204), Nurse Practitioner (196), Internal Medicine (62); [full list](https://npiprofile.com/npi/1699746172/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 11, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1699746172) · Data from the CMS NPPES public registry.