DR. MATTHEW ROBERT SLEASMAN PSY.D.
NPI 1326071937
Psychologist in Milwaukie, OR
About Dr. Matthew Robert Sleasman Psy.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MATTHEW ROBERT SLEASMAN PSY.D. (NPI 1326071937) is an individual psychologist in Milwaukie, Oregon, licensed in Oregon (1782) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Other (2004).
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
Dr. Matthew Robert Sleasman Psy.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 Reassignment
Medicare enrollment records show Matthew Sleasman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Milwaukie, OR 97222
- Reassigned Medicare billing, Oregon enrollment
- 22 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.
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.
MILWAUKIE, OR 97222
MILWAUKIE, OR 97222
MILWAUKIE, OR 97222
MILWAUKIE, OR 97222
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 Matthew Sleasman's NPI number?
The NPI number for Matthew Sleasman is 1326071937. It was assigned to this individual provider in the NPPES registry on July 8, 2006.
Where is Matthew Sleasman located?
Matthew Sleasman practices at 6400 SE Lake Rd Ste 325, Milwaukie, OR 97222. The listed phone number is (503) 786-1711.
What is Matthew Sleasman's specialty?
The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.
Is Matthew Sleasman enrolled in Medicare?
Yes. Matthew Sleasman 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 organization bills Medicare for Matthew Sleasman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Sleasman reassigns Medicare benefits to Cornerstone Clinical Services PC (Milwaukie, OR). 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 Matthew Sleasman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Matthew Sleasman accept?
Health plans from BridgeSpan Health Company, Kaiser Permanente, Moda Health Plan, Inc., PacificSource Health Plans and Providence Health Plan and 1 other insurer list Matthew Sleasman 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 Matthew Sleasman 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.