1. Home
  2. Directory
  3. Washington
  4. Bothell
  5. Behavior Analyst
  6. NPI Profile

SOFYA HADLEY
NPI 1902312481
Behavior Analyst in Bothell, WA

Active since December 20, 2017
19919 BARTLETT RD, BOTHELL, WA 98012(628) 250-7500 Get Directions Write a Review

NPPES record last updated: March 26, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Mar 26, 2026, Sep 4, 2023, May 8, 2023 and 3 more (6 updates tracked since 2017).

About Sofya Hadley NPPES

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

SOFYA HADLEY (NPI 1902312481) is an individual behavior analyst provider in Bothell, Washington, licensed in Washington (BA-61371565) and active in the NPI registry since December 2017. She maintains a secondary practice location in Palo Alto.

NPPES Registry Identity

NPI1902312481
Entity TypeIndividualFemale
Primary Taxonomy103K00000X
Provider Legal NameSOFYA HADLEY
Location Address19919 BARTLETT RDBothell, WA 98012-9645
Mailing Address3000 El Camino Real Bldg 4Palo Alto, CA 94306-2100
Phone(628) 250-7500
Sole ProprietorNo
Enumeration DateDecember 20, 2017
Last NPPES UpdateMarch 26, 20266 updates tracked since enumeration
NPPES CertifiedMarch 26, 2026
✔ NPI 1902312481 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyBehavior AnalystBehavioral Health & Social Service Providers
Taxonomy Code103K00000X
Licenses✔ Licensed in WA · BA-61371565✔ Licensed in OR · 10216942
Definition
A behavior analyst is qualified by at least a master's degree and Behavior Analyst Certification Board certification and/or a state-issued credential (such as a license) to practice behavior analysis independently. Behavior analysts provide the required supervision to assistant behavior analysts and behavior technicians. A behavior analyst delivers services consistent with the dimensions of applied behavior analysis. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing and revising behavior-analytic treatment plans, training others to implement components of treatment plans, and overseeing implementation of treatment plans.
Also ListedBehavior TechnicianTaxonomy 106S00000X · License 10185344 (OR)
19919 BARTLETT RD, Bothell, WA 98012
Open in Google Maps ↗

Other Names 1

Former Name (1)Sofya Dybal

Secondary Practice Location 1

Location 13000 El Camino Real Bldg 4Palo Alto, CA 94306-2100 · Phone (408) 637-7762

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

HEATHER BERRY-CUNDY
Behavior Technician
19919 BARTLETT RD
BOTHELL, WA 98012
Snohomish County (628) 250-7500
MRS. ZIZA R ISRAEL
Behavior Technician
19919 BARTLETT RD
BOTHELL, WA 98012
Snohomish County (707) 799-9527
SUNRISE ABA OF WASHINGTON LLC
Behavior Analyst
19919 BARTLETT RD
BOTHELL, WA 98012
Snohomish County (707) 799-9527
WENDY YORK M.ED., BCBA
Behavior Analyst
19919 BARTLETT RD
BOTHELL, WA 98012
Snohomish County (628) 250-7500
CHUNG KEE FIONA HO
Behavior Technician
19919 BARTLETT RD
BOTHELL, WA 98012
Snohomish County (425) 520-6027

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 Sofya Hadley's NPI number?

The NPI number for Sofya Hadley is 1902312481. It was assigned to this individual provider in the NPPES registry on December 20, 2017. The provider is also known as Sofya Dybal.

Where is Sofya Hadley located?

Sofya Hadley practices at 19919 Bartlett Rd, Bothell, WA 98012. The listed phone number is (628) 250-7500.

What is Sofya Hadley's specialty?

The primary specialty registered for this NPI is Behavior Analyst with taxonomy code 103K00000X.

What insurance does Sofya Hadley accept?

Health plans from Providence Health Plan list Sofya Hadley 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 Sofya Hadley was last updated on March 26, 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.