Gerri Sullivan Popper, MSW LCSW
Clinical Social Worker · San Francisco, CA
Gerri Sullivan Popper, MSW LCSW is a clinical social worker with a practice address in San Francisco, California, and NPI 1861592453, issued on Sep 23, 2006. Check the license (California LCS18405, 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
- Gerri Sullivan Popper
- Credential
- MSW LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- LCS18405 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2339 Ocean Ave, San Francisco, CA 94127
- Phone
- (415) 566-1464
- Enumerated
- Sep 23, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (415) 753-5561
- Medicare enrollment
- Enrolled (PECOS I20110628000249); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 36,261 in California → Look up another NPI →
Also registered at 2339 Ocean Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Myrna Klassen, MFTMarriage & Family Therapist1669664272
Verify Gerri Sullivan Popper in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license LCS18405Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Gerri Sullivan Popper among 36,261 clinical social worker records in California
Gerri Sullivan Popper, 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 2006, is newer than under 1% of them.
- NPI issued2006 · under 1% of these records are older, 91% newer
- In a Medicare fileNo · 6% of these records are
- In the CMS Doctors and Clinicians fileYes · 11% of these records are
- Graduated1970 · median 2012 among the 4,008 with a school on file
- Record last updated2007 · 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.
All 36,261 in California → Every provider in San Francisco → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Mary Jane AlvaradoSan Francisco, CA 941271154668929
- Nina Anderson, LCSWSan Francisco, CA 941271114341542
- Lauren Cunningham, MSWSan Francisco, CA 941271952449431
- Daniel Gunther, L.C.S.W.San Francisco, CA 941271336427186
- Kristen Honma, LCSWSan Francisco, CA 941271366779183
- Mary Hulme, LCSWSan Francisco, CA 941271902820434
- Susan Mak, LCSW #62699San Francisco, CA 941271508289778
- Lynne Nardizzi, MSW, LCSWSan Francisco, CA 941271598902298
Common questions
What is Gerri Sullivan Popper, MSW LCSW's NPI number?
Gerri Sullivan Popper, MSW LCSW's National Provider Identifier (NPI) is 1861592453, issued on Sep 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gerri Sullivan Popper, MSW LCSW located?
The NPPES record lists a practice address at 2339 Ocean Ave, San Francisco, CA, 94127. Phone: (415) 566-1464. Providers update this record themselves, so call before visiting.
How can I verify Gerri Sullivan Popper, MSW LCSW's license?
NPPES lists California license number LCS18405, 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.