Libby Still Riverstone-Howe, MSW,LCSW
Clinical Social Worker · Redwood City, CA
Libby Still Riverstone-Howe, MSW,LCSW is a clinical social worker with a practice address in Redwood City, California, and NPI 1104003920, issued on Jan 23, 2008. Check the license (California 80468, 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
- Libby Still Riverstone-Howe
- Credential
- MSW,LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 80468 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1775 Woodside RD Ste 203, Redwood City, CA 94061
- Phone
- (650) 456-1030
- Enumerated
- Jan 23, 2008
- Record last updated
- Oct 4, 2024
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 36,261 in California → Look up another NPI →
Also registered at 1775 Woodside RD Ste 203
A shared address usually means a shared clinic or building; it does not show who employs whom.
- April Ellis, LCSWClinical Social Worker1104504372
- Stephen Osborn, MSW, LCSWClinical Social Worker1922622174
- Barry Pfeffer, LCSWClinical Social Worker1922988765
- Kaitlyn Sien, MA, AMFTMarriage & Family Therapist1902444847
Verify Libby Still Riverstone-Howe in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 80468Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Libby Still Riverstone-Howe among 36,261 clinical social worker records in California
Libby Still Riverstone-Howe, MSW,LCSW is one of 36,261 clinical social worker records with a practice address in California. 6% 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 2008, is newer than 24% of them.
- NPI issued2008 · 24% of these records are older, 72% newer
- In a Medicare fileNo · 6% of these records are
- In the CMS Doctors and Clinicians fileNo · 11% of these records are
- Record last updated2024 · 45% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
73 clinical social worker records list a practice address in Redwood City
They are 73 of the 2,795 NPPES records with a practice address in Redwood City, and 36,261 clinical social worker records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 36,261 in California → Every provider in Redwood City → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Elizabeth Conlan, LCSWRedwood City, CA 940611194429001
- Jeanne De Alcuaz, M.S.W.,L.C.S.W.Redwood City, CA 940611992239016
- Jessica Derise, LCSW-CRedwood City, CA 940611134358658
- April Ellis, LCSWRedwood City, CA 940611104504372
- Cristofina Gonzalez, LCSWRedwood City, CA 940611689449506
- Lucia Hollowell, LCSW, APHSW-CRedwood City, CA 940611356048623
- Willis Hudson, LCSWRedwood City, CA 940611487972824
- Brendan Murray, LCSWRedwood City, CA 940611720362379
Common questions
What is Libby Still Riverstone-Howe, MSW,LCSW's NPI number?
Libby Still Riverstone-Howe, MSW,LCSW's National Provider Identifier (NPI) is 1104003920, issued on Jan 23, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Libby Still Riverstone-Howe, MSW,LCSW located?
The NPPES record lists a practice address at 1775 Woodside RD Ste 203, Redwood City, CA, 94061. Phone: (650) 456-1030. Providers update this record themselves, so call before visiting.
How can I verify Libby Still Riverstone-Howe, MSW,LCSW's license?
NPPES lists California license number 80468, 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.