Marilyn Slizeski, LPC
Professional Counselor · Corvallis, OR
Marilyn Slizeski, LPC is a professional counselor with a practice address in Corvallis, Oregon, and NPI 1306230925, issued on Mar 20, 2015. Check the license (Oregon C4485, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marilyn Slizeski
- Credential
- LPC
- Primary taxonomy
- Professional Counselor 101YP2500X
- License numbers
- C4485 OR
R3502 OR
Self-reported in NPPES; status is on the state search - Practice location
- 4185 SW Research Way, Corvallis, OR 97333
- Phone
- (541) 257-5500
- Enumerated
- Mar 20, 2015
- Record last updated
- Nov 27, 2024
- Fax
- (541) 286-4140
- Medicaid ID
- 500700536 OR
- Medicare enrollment
- Enrolled (PECOS I20250508002704); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest professional counselor records → All 2,558 in Oregon → Look up another NPI →
Also registered at 4185 SW Research Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Marilyn Slizeski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license C4485Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Western Psychological And Counseling Services LLCCorvallis, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marilyn Slizeski among 2,558 professional counselor records in Oregon
Marilyn Slizeski, LPC is one of 2,558 professional counselor records with a practice address in Oregon. 13% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 51% of them.
- NPI issued2015 · 51% of these records are older, 44% newer
- In a Medicare fileYes · 13% of these records are
- In the CMS Doctors and Clinicians fileYes · 21% of these records are
- Graduated2012 · median 2014 among the 542 with a school on file
- Record last updated2024 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YP2500X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
72 professional counselor records list a practice address in Corvallis
They are 72 of the 4,096 NPPES records with a practice address in Corvallis, and 2,558 professional counselor records in Oregon.
All 2,558 in Oregon → Every provider in Corvallis → Professional Counselor nationwide →
The 8 professional counselor records with the nearest ZIP codes
- Mary Aguilera, PH.D.Corvallis, OR 973331740595255
- Kathleen Bursky, LPCCorvallis, OR 973331891274213
- Alicia Deal, LPC, LSC, NCCCorvallis, OR 973331790852366
- Sandra Garver, LPCCorvallis, OR 973331164656484
- Kiersten Glaeser, LPCCorvallis, OR 973331134351257
- Carrie Hall, MACorvallis, OR 973331508306754
- Amy HulanCorvallis, OR 973331346654480
- Dorothy LorimerCorvallis, OR 973331790359545
Common questions
What is Marilyn Slizeski, LPC's NPI number?
Marilyn Slizeski, LPC's National Provider Identifier (NPI) is 1306230925, issued on Mar 20, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Marilyn Slizeski, LPC located?
The NPPES record lists a practice address at 4185 SW Research Way, Corvallis, OR, 97333. Phone: (541) 257-5500. Providers update this record themselves, so call before visiting.
How can I verify Marilyn Slizeski, LPC's license?
NPPES lists Oregon license number C4485, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.