NPPES file of Aug 9, 2026

Katherine Joy Ryan, L.C.S.W.

Clinical Social Worker · San Francisco, CA

Katherine Joy Ryan, L.C.S.W. is a clinical social worker with a practice address in San Francisco, California, and NPI 1811121973, issued on May 5, 2009. Check the license (California LCS10872, 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.

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

NPPES recordNPPES file of Aug 9, 2026
1811121973
Name
Katherine Joy Ryan
Credential
L.C.S.W.
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
LCS10872 CA
Self-reported in NPPES; status is on the state search
Practice location
2090 Great Hwy, San Francisco, CA 94116
Phone
(415) 731-1500
Enumerated
May 5, 2009
Record last updated
May 5, 2009 (not updated in 17 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20141213000012); accepts Medicare assignment
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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Verify Katherine Joy Ryan 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 LCS10872
    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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Katherine Joy Ryan among 36,261 clinical social worker records in California

Katherine Joy Ryan, L.C.S.W. 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 2009, is newer than 28% of them.

  • NPI issued2009 · 28% of these records are older, 69% newer
  • In a Medicare fileNo · 6% of these records are
  • In the CMS Doctors and Clinicians fileYes · 11% of these records are
  • Graduated1979 · median 2012 among the 4,008 with a school on file
  • Record last updated2009 · 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).

1,358 clinical social worker records list a practice address in San Francisco

They are 1,358 of the 38,143 NPPES records with a practice address in San Francisco, and 36,261 clinical social worker records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 clinical social worker records with the nearest ZIP codes

  1. Elyse Bart, LCSWSan Francisco, CA 941161982746137
  2. Margaret CrabtreeSan Francisco, CA 941161669667994
  3. Margaret Groeninger, LCSWSan Francisco, CA 941161023203536
  4. Meggy Lau, LCSWSan Francisco, CA 941161053490169
  5. Catherine Lau-Cheng, LCSWSan Francisco, CA 941161598844615
  6. Laurie Lenrow, L.C.S.W.San Francisco, CA 941161386778322
  7. Jane Ma, LCSWSan Francisco, CA 941161356420962
  8. Janeyce Ouellette, LCSWSan Francisco, CA 941161831215722

Common questions

What is Katherine Joy Ryan, L.C.S.W.'s NPI number?

Katherine Joy Ryan, L.C.S.W.'s National Provider Identifier (NPI) is 1811121973, issued on May 5, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Joy Ryan, L.C.S.W. located?

The NPPES record lists a practice address at 2090 Great Hwy, San Francisco, CA, 94116. Phone: (415) 731-1500. Providers update this record themselves, so call before visiting.

How can I verify Katherine Joy Ryan, L.C.S.W.'s license?

NPPES lists California license number LCS10872, 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.