Mark Thomas Alessandroni, LCSW
Mental Health Counselor · San Francisco, CA
Mark Thomas Alessandroni, LCSW is a mental health counselor with a practice address in San Francisco, California, and NPI 1467504761, issued on Jan 17, 2007. Check the license (California LCS 19867, 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
- Mark Thomas Alessandroni
- Credential
- LCSW
- Primary taxonomy
- Mental Health Counselor 101YM0800X
- License number
- LCS 19867 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4141 Geary Blvd, San Francisco, CA 94118
- Phone
- (415) 833-0203
- Enumerated
- Jan 17, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (415) 833-2248
- Entity
- Type 1 · individual
Also registered at 4141 Geary Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Audrey AdelsonClinical Social Worker1578600409
- Ellin Becker, M.S., CCC-AAudiologist1144343534
- Teresa Benezra, L.AC.,Acupuncturist1790847838
- Robin Bertoli, LCSWClinical Social Worker1861555682
- Lourdes Betancourt, L.C.S.WClinical Social Worker1407974439
- Derek Blechinger, M.D.Internal Medicine Physician1063839462
Verify Mark Thomas Alessandroni 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 19867Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
865 mental health counselor records list a practice address in San Francisco
They are 865 of the 38,143 NPPES records with a practice address in San Francisco, 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 865 in San Francisco → All 28,617 in California → Every provider in San Francisco →
Other mental health counselor records in California
- Rita A Wilborne, MHRSSan Jose, CA1649315763
- Katie AabSalinas, CA1205257284
- Kayla Aanerud, B.A.Rio Linda, CA1649622101
- La Shaun AaronCamarillo, CA1740469717
- Tamika AaronInglewood, CA1245550284
- Tamara AasenCamarillo, CA1912255035
- Hanna AbaataSan Leandro, CA1659913572
- Edname AbadLemon Grove, CA1356647812
- Taliana AbadiSan Diego, CA1568260271
- Jonathan Abadia, LPTManteca, CA1225625213
Common questions
What is Mark Thomas Alessandroni, LCSW's NPI number?
Mark Thomas Alessandroni, LCSW's National Provider Identifier (NPI) is 1467504761, issued on Jan 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark Thomas Alessandroni, LCSW located?
The NPPES record lists a practice address at 4141 Geary Blvd, San Francisco, CA, 94118. Phone: (415) 833-0203. Providers update this record themselves, so call before visiting.
How can I verify Mark Thomas Alessandroni, LCSW's license?
NPPES lists California license number LCS 19867, 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.