1. Home
  2. Directory
  3. Kansas
  4. City
  5. Psychologist
  6. NPI Profile

DR. STEPHEN ROBERT LASSEN PH.D.
NPI 1649476094
Psychologist - Clinical Child & Adolescent in Kansas City, KS

Active since June 22, 2007PECOS Enrolled
3901 RAINBOW BLVD # MS -4004, KANSAS CITY, KS 66160(913) 588-6323 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Stephen Robert Lassen Ph.d. NPPES

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

DR. STEPHEN ROBERT LASSEN PH.D. (NPI 1649476094) is an individual clinical child & adolescent provider in Kansas City, Kansas and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1649476094
Entity TypeIndividualMale
Primary Taxonomy103TC2200X
Provider Legal NameDR. STEPHEN ROBERT LASSENCredential: PH.D.
Location Address3901 RAINBOW BLVD # MS -4004Kansas City, KS 66160-0001
Mailing Address2725 Wildflower DrLawrence, KS 66047-1893
Phone(913) 588-6323
Sole ProprietorYes
Enumeration DateJune 22, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1649476094 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · Clinical Child & AdolescentBehavioral Health & Social Service Providers
Taxonomy Code103TC2200X
Definition
A psychologist who develops and applies scientific knowledge to the delivery of psychological services to infants, toddlers, children and adolescents within their social context. Of particular importance to the specialty of clinical child psychology is an understanding of the basic psychological needs of children and adolescents, and how the family and other social contexts influence the socio-emotional adjustment, cognitive development, behavioral adaptation and health status of children and adolescents.
3901 RAINBOW BLVD # MS -4004, Kansas City, KS 66160
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Sunflower Health Plan, Ambetter Health, Ambetter Health of Delaware and more.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. Stephen Robert Lassen Ph.d. 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 Stephen Lassen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Kansas University Physicians Inc
0.2 mi
Obstetrics & Gynecology
4000 CAMBRIDGE ST
Kansas City, KS 66160
  • Reassigned Medicare billing, Kansas enrollment
  • 2,139 clinicians in this Medicare group
NPI 1053457978 (913) 588-1227

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

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 Stephen Lassen's NPI number?

The NPI number for Stephen Lassen is 1649476094. It was assigned to this individual provider in the NPPES registry on June 22, 2007.

Where is Stephen Lassen located?

Stephen Lassen practices at 3901 Rainbow Blvd # Ms -4004, Kansas City, KS 66160. The listed phone number is (913) 588-6323.

What is Stephen Lassen's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical Child & Adolescent, with taxonomy code 103TC2200X.

Is Stephen Lassen enrolled in Medicare?

Yes. Stephen Lassen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Stephen Lassen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Lassen reassigns Medicare benefits to Kansas University Physicians Inc (Kansas City, KS). 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 Stephen Lassen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Stephen Lassen accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Sunflower Health Plan, Ambetter of Oklahoma and Blue Cross and Blue Shield of Kansas City and 2 other insurers list Stephen Lassen 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 Stephen Lassen was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.