SILVIA HARTMANN M.D.
NPI 1861651929
Pediatrics - Pediatric Critical Care Medicine in Seattle, WA
About Silvia Hartmann M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SILVIA HARTMANN M.D. (NPI 1861651929) is an individual pediatric critical care medicine provider in Seattle, Washington, licensed in Washington (MD60206911) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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)
Silvia Hartmann M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Silvia Hartmann reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
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
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 Silvia Hartmann's NPI number?
The NPI number for Silvia Hartmann is 1861651929. It was assigned to this individual provider in the NPPES registry on June 4, 2008.
Where is Silvia Hartmann located?
Silvia Hartmann practices at 4800 Sand Point Way NE, Seattle, WA 98105. The listed phone number is (206) 987-2000.
What is Silvia Hartmann's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Critical Care Medicine, with taxonomy code 2080P0203X.
Is Silvia Hartmann enrolled in Medicare?
Yes. Silvia Hartmann is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Silvia Hartmann's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Silvia Hartmann reassigns Medicare benefits to Association Of Chmc And University Physicians (Seattle, WA). 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 Silvia Hartmann's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Silvia Hartmann accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Silvia Hartmann 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 Silvia Hartmann was last updated on January 26, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Silvia Hartmann, M.D. · NPI 1861651929
Pediatric Critical Care Medicine physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since June 4, 2008.
## Identity
- **NPI:** 1861651929 (Entity type: Individual)
- **Enumerated:** June 4, 2008
- **Primary specialty:** Pediatrics - Pediatric Critical Care Medicine · taxonomy 2080P0203X
- **State license:** MD60206911 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 4800 SAND POINT WAY NE, Seattle, WA 98105-3901
- **Phone:** (206) 987-2000
## 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:** Association Of Chmc And University Physicians (NPI 1649497827, Seattle, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 26, 2015
- **Other identifiers:** Medicaid 1861651929 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1861651929) · Data from the CMS NPPES public registry.