DR. THOMAS JOHN AGOSTINI MD
NPI 1194428953
Pediatrics - Adolescent Medicine in Seattle, WA
About Dr. Thomas John Agostini Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. THOMAS JOHN AGOSTINI MD (NPI 1194428953) is an individual adolescent medicine provider in Seattle, Washington, licensed in Washington (ML61425579) and active in the NPI registry since March 2023. He is enrolled in Medicare PECOS and is a graduate of Other (2023).
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)
Dr. Thomas John Agostini Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Thomas Agostini 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.
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 Thomas Agostini's NPI number?
The NPI number for Thomas Agostini is 1194428953. It was assigned to this individual provider in the NPPES registry on March 22, 2023.
Where is Thomas Agostini located?
Thomas Agostini practices at 4800 Sand Point Way NE # Oc.7830, Seattle, WA 98105. The listed phone number is (206) 987-2525.
What is Thomas Agostini's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Adolescent Medicine, with taxonomy code 2080A0000X.
Is Thomas Agostini enrolled in Medicare?
Yes. Thomas Agostini is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Thomas Agostini's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Agostini 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 Thomas Agostini's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thomas Agostini accept?
Health plans from Ambetter Health and Premera Blue Cross Blue Shield of Alaska list Thomas Agostini 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 Thomas Agostini was last updated on May 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. Thomas John Agostini, MD · NPI 1194428953
Adolescent Medicine physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since March 22, 2023.
## Identity
- **NPI:** 1194428953 (Entity type: Individual)
- **Enumerated:** March 22, 2023
- **Primary specialty:** Pediatrics - Adolescent Medicine · taxonomy 2080A0000X
- **State license:** ML61425579 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 4800 SAND POINT WAY NE # OC.7830, Seattle, WA 98105-3901
- **Phone:** (206) 987-2525
## 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
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** May 14, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1194428953) · Data from the CMS NPPES public registry.