NPPES file of Aug 9, 2026

April Ellis, LCSW

Clinical Social Worker · Redwood City, CA

April Ellis, LCSW is a clinical social worker with a practice address in Redwood City, California, and NPI 1104504372, issued on Jul 7, 2023. Check the license (California 27301, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1104504372
Name
April Ellis
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
27301 CA
Self-reported in NPPES; status is on the state search
Practice location
1775 Woodside RD Ste 203, Redwood City, CA 94061
Phone
(415) 867-1419
Enumerated
Jul 7, 2023
Record last updated
Jul 7, 2023
Medicare enrollment
Enrolled (PECOS I20240110004740); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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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.

  1. Stephen Osborn, MSW, LCSWClinical Social Worker1922622174
  2. Barry Pfeffer, LCSWClinical Social Worker1922988765
  3. Libby Riverstone-Howe, MSW,LCSWClinical Social Worker1104003920
  4. Kaitlyn Sien, MA, AMFTMarriage & Family Therapist1902444847

Verify April Ellis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 27301
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Cypress Health Licensed Clinical Social Worker IncRedwood City, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

April Ellis among 36,261 clinical social worker records in California

April Ellis, 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. Its NPI, issued in 2023, is newer than 86% of them.

  • NPI issued2023 · 86% of these records are older, 10% newer
  • In a Medicare fileYes · 6% of these records are
  • In the CMS Doctors and Clinicians fileYes · 11% of these records are
  • Graduated2007 · median 2012 among the 4,008 with a school on file
  • Record last updated2023 · 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.

The 8 clinical social worker records with the nearest ZIP codes

  1. Elizabeth Conlan, LCSWRedwood City, CA 940611194429001
  2. Jeanne De Alcuaz, M.S.W.,L.C.S.W.Redwood City, CA 940611992239016
  3. Jessica Derise, LCSW-CRedwood City, CA 940611134358658
  4. Cristofina Gonzalez, LCSWRedwood City, CA 940611689449506
  5. Lucia Hollowell, LCSW, APHSW-CRedwood City, CA 940611356048623
  6. Willis Hudson, LCSWRedwood City, CA 940611487972824
  7. Brendan Murray, LCSWRedwood City, CA 940611720362379
  8. Alexandra OlsonRedwood City, CA 940611356272496

Common questions

What is April Ellis, LCSW's NPI number?

April Ellis, LCSW's National Provider Identifier (NPI) is 1104504372, issued on Jul 7, 2023. An NPI identifies a provider in billing; it is not a license.

Where is April Ellis, LCSW located?

The NPPES record lists a practice address at 1775 Woodside RD Ste 203, Redwood City, CA, 94061. Phone: (415) 867-1419. Providers update this record themselves, so call before visiting.

How can I verify April Ellis, LCSW's license?

NPPES lists California license number 27301, 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. 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.