Ellen O'Connor Messinger, LCSW
Mental Health Counselor · Oakland, CA
Ellen O'Connor Messinger, LCSW is a mental health counselor with a practice address in Oakland, California, and NPI 1114028347, issued on Sep 26, 2006. Check the license (California LCS 14070, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Ellen O'Connor Messinger
- Credential
- LCSW
- Primary taxonomy
- Mental Health Counselor 101YM0800X
- License number
- LCS 14070 CA
Self-reported in NPPES; status is on the state search - Practice location
- 670 Vernon St., Oakland, CA 94610
- Phone
- (510) 601-6810
- Enumerated
- Sep 26, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest mental health counselor records → All 28,617 in California → Look up another NPI →
Verify Ellen O'Connor Messinger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license LCS 14070Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Ellen O'Connor Messinger among 28,617 mental health counselor records in California
Ellen O'Connor Messinger, LCSW is one of 28,617 mental health counselor records with a practice address in California. 1% 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 2006, is newer than under 1% of them.
- NPI issued2006 · under 1% of these records are older, 96% newer
- In a Medicare fileNo · 1% of these records are
- In the CMS Doctors and Clinicians fileNo · 3% of these records are
- Record last updated2007 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YM0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,069 mental health counselor records list a practice address in Oakland
They are 1,069 of the 18,558 NPPES records with a practice address in Oakland, and 28,617 mental health counselor records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 28,617 in California → Every provider in Oakland → Mental Health Counselor nationwide →
The 8 mental health counselor records with the nearest ZIP codes
- Teresa Allen, M.S., MFTOakland, CA 946101578629739
- Yolanda Braxton, PSYDPiedmont, CA 946101255537320
- Kristen Carey, PSYDPiedmont, CA 946101265639041
- Derethia Duval, MFTOakland, CA 946101184641011
- Linda Hirshfeld, PHDPiedmont, CA 946101801093612
- Babalwa Kwanele, LMFTOakland, CA 946101861524035
- Susan Lyon, PHDPiedmont, CA 946101588861223
- Mahima Muralidharan, PSY.D.Piedmont, CA 946101093911380
Common questions
What is Ellen O'Connor Messinger, LCSW's NPI number?
Ellen O'Connor Messinger, LCSW's National Provider Identifier (NPI) is 1114028347, issued on Sep 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ellen O'Connor Messinger, LCSW located?
The NPPES record lists a practice address at 670 Vernon St., Oakland, CA, 94610. Phone: (510) 601-6810. Providers update this record themselves, so call before visiting.
How can I verify Ellen O'Connor Messinger, LCSW's license?
NPPES lists California license number LCS 14070, as entered by the provider. Search the California 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.