Rachel Efken , BCBA
Behavior Analyst β’ Lakewood, WA
5919 100th St Sw # 2
Lakewood, WA 984992731
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
5919 100th St Sw # 2
Lakewood, WA 984992731
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 3 distinct additional practice-address records in Bellevue, WA; Lakewood, WA; Tacoma, WA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Behavior Analyst: NPPES taxonomy is a reported classification, not proof of board certification.
NPI first issued
2020
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Compared with the same specialty in Lakewood and Washington
72 active clinicians are listed under Behavior Analyst with a practice address in Lakewood, WA (2,981 in Washington).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Lakewood
0% of these 72 clinicians have the CMS telehealth indicator.
0% of these 72 clinicians are listed by CMS as accepting Medicare assignment.
Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2026-07-21NUCC Taxonomy Code: 103K00000X
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.
NUCC Taxonomy Code: 103K00000X
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.
Secondary Practice Locations
521 Military Rd S
Tacoma, WA 984442600
Phone: 8552237123
914 140th Ave Ne Ste 201
Bellevue, WA 980053482
Phone: 8552237123
10015 Lakewood Dr Sw
Lakewood, WA 984993838
Phone: 8552237123
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 5919 100TH ST SW # 2, LAKEWOOD, WA 984992731 (Tel: 8552237123)
Registered at 5919 100TH ST SW, LAKEWOOD, WA 984992731 (Tel: 8552237123)
Registered at PO BOX 740780, ATLANTA, GA 303740780 (Tel: 8552237123)
Behavior Analyst (license number reported to NPPES: WA BA61592699)
Registered at 10015 LAKEWOOD DR SW, LAKEWOOD, WA 984993838 (Tel: 8552237123)
Registered at PO BOX 33568, SAN DIEGO, CA 921633568 (Tel: 8552237123)
Registered at 343 FOUNTAINS PKWY, FAIRVIEW HEIGHTS, IL 622082170 (Tel: 6185151441)
Registered at 343 FOUNTAINS PKWY, FAIRVIEW HEIGHTS, IL 622082170
Recorded as RACHEL EFKEN, BCBA
Behavior Analyst
NPI status registered as active in NPPES database
Registered at 9374 OLIVE BLVD, OLIVETTE, MO 631323267 (Tel: 3149322402)
Registered at 9374 OLIVE BLVD STE 101, OLIVETTE, MO 631323253
Recorded as RACHEL EFKEN, RBT
Behavior Analyst (license number reported to NPPES: MO RBT-18-65921)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Mailing Address
Po Box 740780
Atlanta, GA 303740780
Phone: 8552237123