David William Singer, MSW, LCSW
Clinical Social Worker · Portland, OR
David William Singer, MSW, LCSW is a clinical social worker with a practice address in Portland, Oregon, and NPI 1174758387, issued on May 18, 2009. Check the license (Oregon L4248, as entered in NPPES) with the Oregon board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- David William Singer
- Credential
- MSW, LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- L4248 OR
Self-reported in NPPES; status is on the state search - Practice location
- 4410 SE Woodstock Blvd Ste 230, Portland, OR 97206
- Phone
- (503) 893-8995
- Enumerated
- May 18, 2009
- Record last updated
- Jan 5, 2023
- Fax
- (503) 354-1778
- Medicare enrollment
- Enrolled (PECOS I20130930000275); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 5,014 in Oregon → Look up another NPI →
Also registered at 4410 SE Woodstock Blvd Ste 230
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Diane Havnen-Smith, MSW, LCSWClinical Social Worker1558513846
Verify David William Singer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license L4248Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
David William Singer among 5,014 clinical social worker records in Oregon
David William Singer, MSW, LCSW is one of 5,014 clinical social worker records with a practice address in Oregon. 12% 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 2009, is newer than 29% of them.
- NPI issued2009 · 29% of these records are older, 67% newer
- In a Medicare fileNo · 12% of these records are
- In the CMS Doctors and Clinicians fileYes · 21% of these records are
- Graduated2005 · median 2011 among the 1,044 with a school on file
- Record last updated2023 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,902 clinical social worker records list a practice address in Portland
They are 1,902 of the 42,088 NPPES records with a practice address in Portland, and 5,014 clinical social worker records in Oregon. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 5,014 in Oregon → Every provider in Portland → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Meridith Allen, LCSWPortland, OR 972061871639153
- Madelyn Antinucci, LCSWPortland, OR 972061538207287
- Sean Barnett, LCSWPortland, OR 972061760504807
- Robert Beatty, LCSWPortland, OR 972061750400834
- Gregory BordersPortland, OR 972061285735738
- Bradley Dennis, MSW, QMHPPortland, OR 972061316043755
- Steven Herzberg, LCSW,QMHP,MSWPortland, OR 972061730285131
- David Kohler, LCSWPortland, OR 972061164404836
Common questions
What is David William Singer, MSW, LCSW's NPI number?
David William Singer, MSW, LCSW's National Provider Identifier (NPI) is 1174758387, issued on May 18, 2009. An NPI identifies a provider in billing; it is not a license.
Where is David William Singer, MSW, LCSW located?
The NPPES record lists a practice address at 4410 SE Woodstock Blvd Ste 230, Portland, OR, 97206. Phone: (503) 893-8995. Providers update this record themselves, so call before visiting.
How can I verify David William Singer, MSW, LCSW's license?
NPPES lists Oregon license number L4248, 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. 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.