Christopher C. Losiewski, MSW
Social Worker · Portland, OR
Christopher C. Losiewski, MSW is a social worker with a practice address in Portland, Oregon, and NPI 1932592086, issued on Mar 13, 2015. Check the license with the Oregon board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Christopher C. Losiewski
- Credential
- MSW
- Primary taxonomy
- Social Worker 104100000X
- Practice location
- 2701 NW Vaughn St Ste 140, Portland, OR 97210
- Phone
- (503) 499-5200
- Enumerated
- Mar 13, 2015
- Record last updated
- Mar 13, 2015 (not updated in 11 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest social worker records → All 2,101 in Oregon → Look up another NPI →
Also registered at 2701 NW Vaughn St Ste 140
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elise Albert, LCSWClinical Social Worker1437428950
- Rachelle Alberts, LCSWClinical Social Worker1538613435
- Tricia Berry, LCSW, MSWClinical Social Worker1952559544
- Sherry Bohannan, LCSWClinical Social Worker1730458548
- Tonja GreenClinical Social Worker1932844396
- Kenneth MarshClinical Social Worker1720357668
Verify Christopher C. Losiewski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Christopher C. Losiewski among 2,101 social worker records in Oregon
Christopher C. Losiewski, MSW is one of 2,101 social worker records with a practice address in Oregon. 2% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2015, is newer than 41% of them.
- NPI issued2015 · 41% of these records are older, 53% newer
- In a Medicare fileNo · 2% of these records are
- In the CMS Doctors and Clinicians fileNo · 3% of these records are
- Record last updated2015 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 104100000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
964 social worker records list a practice address in Portland
They are 964 of the 42,088 NPPES records with a practice address in Portland, and 2,101 social worker records in Oregon. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,101 in Oregon → Every provider in Portland → Social Worker nationwide →
The 8 social worker records with the nearest ZIP codes
- Hava Aviv, M.A.Portland, OR 972101841684552
- Teal Bluestone, MAPortland, OR 972101770222002
- Sonia Bosch, MSWPortland, OR 972101760042956
- Leanne FrazierPortland, OR 972101932939311
- Steven Jackson, MSWPortland, OR 972101457620684
- Anna JurkenPortland, OR 972101366260366
- Ann Lauritsen, LCSWPortland, OR 972101568614873
- McKenna Martin, MSWPortland, OR 972101568031367
Common questions
What is Christopher C. Losiewski, MSW's NPI number?
Christopher C. Losiewski, MSW's National Provider Identifier (NPI) is 1932592086, issued on Mar 13, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Christopher C. Losiewski, MSW located?
The NPPES record lists a practice address at 2701 NW Vaughn St Ste 140, Portland, OR, 97210. Phone: (503) 499-5200. Providers update this record themselves, so call before visiting.
How can I verify Christopher C. Losiewski, MSW's license?
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. 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.