Social Workers in Altadena, CA
Browse 18 Social Worker providers listed in NPPES with a practice address in Altadena, California.
How Altadena compares with the U.S.
Altadena has 43 Social Workers per 100,000 residents, close to the U.S. rate of 41.
That is 18 active Social Workers with a practice address in Altadena, for a population of 41,705.
The California rate is 26 per 100,000 residents.
What these numbers mean
Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.
A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.
City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places.
None of the Social Workers in Altadena are listed in the CMS Medicare file.
These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.
Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com · Methodology
Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).
Edith Joellen Ballard
Social Worker
Rita Jean Biasi , MSW
Social Worker
Kevin Christopher Chow
Social Worker
Rachel Molly Hirshberg , ASW
Social Worker
Katherine Brinton Hurley , ASW
Social Worker
Lance Ronald Jackson , ACSW
Social Worker
Eunice Juarez , LCSW
Social Worker
Courtney Lominac , MSW
Social Worker
Mark Anthony Lopez , MSW
Social Worker
Kevin Patrick Maxwell , MSW
Social Worker
Melissa Montez
Social Worker
Mariana Ocampo , MSW
Social Worker
Brian Penrod , MSW
Social Worker
Rosa M Rincon
Social Worker
Gabriela Marie Romero , MSW
Social Worker
Diana Ruano
Social Worker
Mallorie Sanchez
Social Worker
Emily Jessica Wong , MSW
Social Worker
Frequently Asked Questions about Social Worker in Altadena
Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the California licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.
This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.
Social Workers in Other California Cities
Cities with the most listed practitioners first.