ERIN RATTERMAN MD
NPI 1881213866
Pediatrics - Pediatric Hematology-Oncology in Seattle, WA
About Erin Ratterman Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ERIN RATTERMAN MD (NPI 1881213866) is an individual pediatric hematology-oncology provider in Seattle, Washington, licensed in Washington (MD.MD.61433672) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS and is a graduate of Indiana University School Of Medicine (2020).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Erin Ratterman Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Erin Ratterman reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Seattle, WA 98105
- Reassigned Medicare billing, Washington enrollment
- Medicare enrollment name: The Association Of Chrmc And University Physicians
- 1,443 clinicians in this Medicare group
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 4,364 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SEATTLE, WA 98105
SEATTLE, WA 98105
SEATTLE, WA 98105
SEATTLE, WA 98105
SEATTLE, WA 98105
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 Erin Ratterman's NPI number?
The NPI number for Erin Ratterman is 1881213866. It was assigned to this individual provider in the NPPES registry on April 10, 2020.
Where is Erin Ratterman located?
Erin Ratterman practices at 4800 Sand Point Way NE, Seattle, WA 98105. The listed phone number is (206) 987-2106.
What is Erin Ratterman's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.
Is Erin Ratterman enrolled in Medicare?
Yes. Erin Ratterman is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Erin Ratterman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Erin Ratterman reassigns Medicare benefits to 2 organizations: Association Of Chmc And University Physicians (Seattle, WA) and The Association Of University Physicians (Seattle, WA). Each 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 Erin Ratterman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Erin Ratterman accept?
Health plans from Ambetter Health, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Erin Ratterman 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 Erin Ratterman was last updated on May 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Erin Ratterman, MD · NPI 1881213866
Pediatric Hematology-Oncology physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since April 10, 2020.
## Identity
- **NPI:** 1881213866 (Entity type: Individual)
- **Enumerated:** April 10, 2020
- **Primary specialty:** Pediatrics - Pediatric Hematology-Oncology · taxonomy 2080P0207X
- **State license:** MD.MD.61433672 (Washington)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4800 SAND POINT WAY NE, Seattle, WA 98105-3901
- **Phone:** (206) 987-2106
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Association Of Chmc And University Physicians (NPI 1649497827, Seattle, WA); The Association Of University Physicians (NPI 1023041159, Seattle, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Indiana University School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** May 6, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1881213866) · Data from the CMS NPPES public registry.