If you are in need of medical services, here are some organizations that may be able to help you:
 
RADY CHILDREN'S HOSPITAL AND HEALTH CENTER
3020 Children's Way
San Diego, CA 92123-4282
Service/Intake Emergency Care: (858) 966-8005ST.

VINCENT DE PAUL VILLAGE MEDICAL CLINIC
1501 Imperial Ave
San Diego, CA 92101-7600
(619) 233-8500 x1421 Service/Intake
Medical Clinic is available for individuals under 18 on Thursdays only

If you are looking for a shelter or a transitional living facility, you may find the help you need with one of these organizations:
 
THE STOREFRONT, SAN DIEGO YOUTH AND COMMUNITY SERVICES
Overnight Shelter and Day Center
(866) 752-2327 Toll-Free
6:00 pm till 8:00 am, 7 Days/Shelter and Intake
9:00 am till 6:00 pm, 7 Days/Day Center
Provides overnight shelter and day center for homeless youth (including pregnant teens on a case-by-case basis) and runaways. Services include family reunification, information and referral, counseling, case management, independent living and social skills development, job development, food, and clothing.

 
SAN DIEGO YOUTH AND COMMUNITY SERVICES
Take Wing Transitional Living Program
(619) 221-8610 Service/Intake
Ages 18 to 24 years or emancipated minors ages 16 and older. Must have a source of income.Provides youth with low-income housing, case management, independent living skills, and other supportive services. Supportive services includes crisis intervention, mediation, career exploration, job-seeking skills, conflict resolution, cooking and nutrition classes, budgeting, banking, utilities hookup, and public assistance application help. Program is up to 18 months long and is designed to empower youth to make the transition to independent living.

ST VINCENT DE PAUL VILLAGE
Toussaint Academy of the Arts and Sciences
1401 Fifth Ave
San Diego, CA 92101
(619) 687-1080 Service/Intakechildren ages 14 to 17 years.

ST VINCENT DE PAUL VILLAGE
Family, Long-Term Transitional Housing
1501 Imperial Ave
San Diego, CA 92101
(619) 233-8500 x1356 Information Only
Provides comprehensive long-term transitional housing and intensive case management for homeless families. Meals are provided on-site, and sack lunches are provided for working residents. Services include counseling, employment assistance and training, life skills classes, financial planning, assistance locating housing, basic adult education, and medical screening. There is a charter school for elementary age children and childcare.

If you are looking for emergency services, here are some organizations that may be able to help you:
 
CATHOLIC CHARITIES
Emergency Assistance Program
349 Cedar St
San Diego, CA 92101
(619) 231-2828 x101
Provides transitional case management and direct emergency services to low-income working families, individuals, and homeless persons. Provides food; formula, diapers, clothing when available; referrals to shelter; transportation assistance; rental and utility (gas and electric) funds when available. Case managers can shelter clients directly at the Interfaith Shelter Network and with both County or Emergency Food and Shelter Program (EFSP) hotel vouchers when available. Only the Downtown San Diego site provides security deposit assistance through the City of San Diego Security Deposit Guarantee Program. This program does not provide cash but is a security deposit guarantee program, available only to people moving into rental units (including Section 8) within the City of San Diego (zip codes beginning with 921). Downtown San Diego provides referrals to the Lions Club Vision Clinic. Downtown San Diego also refers to the Schwarzman Senior Emergency Fund, which provides emergency loans to seniors 60 years and older who are facing short-term financial difficulties (loans range from $20 to $200). El Centro provides case management, emergency food, financial assistance with utility bills, discounts on utility bills, monthly commodity distribution, and clothing vouchers.

HORIZON CHRISTIAN FELLOWSHIP, HORIZON PARK CHAPEL
Emergency Food and Clothing
590 Fir St
San Diego, CA 92101

FIRST PRESBYTERIAN CHURCH OF SAN DIEGO
Ladle Fellowship
320 Date St
San Diego, CA 92101
(619) 232-7513
On Sunday provides worship service followed by a congregate meal for homeless and poor persons in the downtown San Diego area. Provides clothing and hygiene items. Also offers pastoral counseling services. On Tuesday, Wednesday, and Thursday provides occasional emergency food year round and emergency clothing and blankets in the winter only. Program Hours/Days: 12:15 pm (no sooner), Sunday/Line up for ticket to congregate lunch.(Ticket is not mandatory. Everyone who shows up will be served.)
1:00 pm, Sunday/Worship Service
1:30 pm till 3:30 pm, Sunday/Congregate Lunch, Clothing, Hygiene Items
9:00 am till 4:30 pm, Tuesday, Wednesday, Thursday/Emergency Food (and Emergency Clothing and Blankets in the winter only)

Here is a list of resources if you are looking for a job:

San Diego Job Core
1325 Iris Ave
Imperial Beach, CA 91932
(619) 429-8500www.jobing.com
 
 
Here are some resources for you if you have runaway from home:
 
Have you runaway from home? Do you want a free ticket home provided by Greyhound? If so, call this number: 1-800-621-4000 
 
The National Runaway Hotline: 1-800RUNAWAY
 
For information about other social services offered throughout San Diego County, please call 2-1-1 or (858) 300-1211