DR. CLARE CADAGIN ZIMMERMAN M.D.
NPI 1902291735
Pediatrics - Pediatric Hematology-Oncology in Saint Louis, MO
About Dr. Clare Cadagin Zimmerman M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CLARE CADAGIN ZIMMERMAN M.D. (NPI 1902291735) is an individual pediatric hematology-oncology provider in Saint Louis, Missouri, licensed in Illinois (036157065) and active in the NPI registry since March 2015. She is enrolled in Medicare PECOS and maintains a secondary practice location in Springfield.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Clare Cadagin Zimmerman M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Clare Zimmerman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Springfield, IL 62702
- Reassigned Medicare billing, Illinois enrollment
- 645 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.
Other Providers at the Same Location NPPES 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT LOUIS, MO 63110
ST. LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
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 Clare Zimmerman's NPI number?
The NPI number for Clare Zimmerman is 1902291735. It was assigned to this individual provider in the NPPES registry on March 30, 2015.
Where is Clare Zimmerman located?
Clare Zimmerman practices at 1 Childrens Pl Cb 8116, Saint Louis, MO 63110. The listed phone number is (314) 454-6018.
What is Clare Zimmerman's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.
Is Clare Zimmerman enrolled in Medicare?
Yes. Clare Zimmerman is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Clare Zimmerman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Clare Zimmerman reassigns Medicare benefits to Siu Physicians & Surgeons, Inc (Springfield, IL). 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 Clare Zimmerman'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 Clare Zimmerman was last updated on June 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. Clare Cadagin Zimmerman, M.D. · NPI 1902291735
Pediatric Hematology-Oncology physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since March 30, 2015.
## Identity
- **NPI:** 1902291735 (Entity type: Individual)
- **Enumerated:** March 30, 2015
- **Primary specialty:** Pediatrics - Pediatric Hematology-Oncology · taxonomy 2080P0207X
- **State license:** 036157065 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 CHILDRENS PL CB 8116, Saint Louis, MO 63110
- **Phone:** (314) 454-6018
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Siu Physicians & Surgeons, Inc (NPI 1558385989, Springfield, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 29, 2021
---
Source: [NPI Profile](https://npiprofile.com/npi/1902291735) · Data from the CMS NPPES public registry.