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CASSANDRA CASTRO
NPI 1720640428
Nurse Practitioner - Psychiatric/Mental Health in Seattle, WA

Active since July 02, 2019PECOS Enrolled
320 NE 97TH ST STE A, SEATTLE, WA 98115(206) 453-5707 Get Directions Write a Review

NPPES record last updated: June 11, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 19, 2022, Dec 15, 2022, Jul 2, 2019 (3 updates tracked since 2019).

About Cassandra Castro NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CASSANDRA CASTRO (NPI 1720640428) is an individual psychiatric/mental health provider in Seattle, Washington, licensed in Washington (61389164) and active in the NPI registry since July 2019. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1720640428
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameCASSANDRA CASTRO
Location Address320 NE 97TH ST STE ASeattle, WA 98115-2042
Mailing Address10710 Mukilteo SpeedwayMukilteo, WA 98275-5021
Phone(206) 453-5707
Sole ProprietorNo
Enumeration DateJuly 2, 2019
Last NPPES UpdateJune 11, 20263 updates tracked since enumeration
NPPES CertifiedJune 11, 2026
✔ NPI 1720640428 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in WA · 61389164
Also ListedRegistered NurseTaxonomy 163W00000X · License 60961724 (WA)
320 NE 97TH ST STE A, Seattle, WA 98115
Open in Google Maps ↗

Secondary Practice Locations 2

Location 110710 Mukilteo SpeedwayMukilteo, WA 98275-5021 · Phone (425) 349-8888
Location 2100 N Howard St Ste 6868Spokane, WA 99201-0508 · Phone (206) 984-8871

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Premera Blue Cross Blue Shield of Alaska.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Cassandra Castro is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Cassandra Castro reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mindful Therapy Group PC
7.2 mi
Clinical
6505 216TH ST SW STE 100
Mountlake Terrace, WA 98043
  • Reassigned Medicare billing, Washington enrollment
  • 777 clinicians in this Medicare group
NPI 1316238678 (425) 640-7009

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98115 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$97.43 typical visit price
range $63.67 – $189.37
Typical copayment $24.35 (range $15.91 – $47.34)
Most-billed visit code 99203
Established Patient
$111.00 typical visit price
range $21.12 – $155.00
Typical copayment $27.75 (range $5.28 – $38.75)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

JENNIFER MEGAN SCHLADWEILER
Nurse Practitioner (Psychiatric/Mental Health)
320 NE 97TH ST STE A
SEATTLE, WA 98115
King County (206) 453-5707
DEREK KUIPER LMHCA
Counselor (Mental Health)
320 NE 97TH ST STE A
SEATTLE, WA 98115
King County (512) 786-6178
LYNN CALHOUN HOWELL LMHC, NCC
Counselor (Mental Health)
320 NE 97TH ST STE A
SEATTLE, WA 98115
King County (425) 640-7009
LENA SNYDER
Counselor (Mental Health)
320 NE 97TH ST STE A
SEATTLE, WA 98115
King County (206) 453-5707
JORDYN SEPTEMBER ARROYO LMHC
Counselor (Mental Health)
320 NE 97TH ST STE A
SEATTLE, WA 98115
King County (206) 429-5376
KEVIN PRINGLE LMHC
Counselor (Mental Health)
320 NE 97TH ST STE A
SEATTLE, WA 98115
King County (206) 627-0233
VIVIANA CASTILLO CONTRERAS LMHCA
Counselor (Mental Health)
320 NE 97TH ST STE A
SEATTLE, WA 98115
King County (509) 720-7446
MR. KENTRELL PITTMAN LMHCA
Counselor (Mental Health)
320 NE 97TH ST STE A
SEATTLE, WA 98115
King County (336) 306-0881

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 Cassandra Castro's NPI number?

The NPI number for Cassandra Castro is 1720640428. It was assigned to this individual provider in the NPPES registry on July 2, 2019.

Where is Cassandra Castro located?

Cassandra Castro practices at 320 NE 97th St Ste A, Seattle, WA 98115. The listed phone number is (206) 453-5707.

What is Cassandra Castro's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Cassandra Castro enrolled in Medicare?

Yes. Cassandra Castro is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Cassandra Castro's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Cassandra Castro reassigns Medicare benefits to Mindful Therapy Group PC (Mountlake Terrace, 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 Cassandra Castro's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Cassandra Castro accept?

Health plans from Ambetter Health and Premera Blue Cross Blue Shield of Alaska list Cassandra Castro 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 Cassandra Castro was last updated on June 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.