GREGORY SCOTT SIDELL M.D.
NPI 1780603530
Psychiatry & Neurology - Psychiatry in Tacoma, WA
About Gregory Scott Sidell M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY SCOTT SIDELL M.D. (NPI 1780603530) is an individual psychiatry provider in Tacoma, Washington, licensed in Washington (MD61058340) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Indiana University School Of Medicine (1988).
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 and accepts Medicare assignment
Gregory Scott Sidell M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Gregory Sidell reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Renton, WA 98057
- Reassigned Medicare billing, Washington enrollment
- 2,678 clinicians in this Medicare group
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 13 clinicians in this Medicare group
Bloomington, IN 47404
- Reassigned Medicare billing, Indiana enrollment
- 47 clinicians in this Medicare group
Bloomington, IN 47403
- Reassigned Medicare billing, Indiana enrollment
- 251 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98409 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
TACOMA, WA 98409
TACOMA, WA 98409
TACOMA, WA 98409
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 Gregory Sidell's NPI number?
The NPI number for Gregory Sidell is 1780603530. It was assigned to this individual provider in the NPPES registry on July 19, 2006.
Where is Gregory Sidell located?
Gregory Sidell practices at 4301 S Pine St Ste 301, Tacoma, WA 98409. The listed phone number is (253) 476-6500.
What is Gregory Sidell's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Gregory Sidell enrolled in Medicare?
Yes. Gregory Sidell is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Gregory Sidell's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Sidell reassigns Medicare benefits to 4 organizations: Kaiser Foundation Health Plan Of Washington (Renton, WA), Seattle Neuropsychiatric Treatment Center, PLLC (Seattle, WA), Indiana University Health Bloomington Inc (Bloomington, IN) and Centerstone Of Indiana, Inc. (Bloomington, IN). 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 Gregory Sidell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Sidell accept?
Health plans from Premera Blue Cross Blue Shield of Alaska list Gregory Sidell 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 Gregory Sidell was last updated on May 5, 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.