input error

Your privacy settings do not allow this content to be viewed.

Jeffrey De Castro Mariano, MD

Photo of Jeffrey De Castro Mariano, MD

My specialty:

My provider affiliation:
Kaiser Permanente provider

I speak: English, Tagalog

My gender: Male


Find out about

Where I practice

Skip map Map begins Using your location
This information is not available at this time.
This information is not available at this time.
Available services
  • Emergency service
  • Urgent care services
  • After-hours services
  • Pharmacy services
Unavailable services
  • No emergency services
  • No urgent care services
  • No after-hours services
  • No pharmacy services
This information is not available at this time.
Map ends

About me

Hello, and welcome to my Web page! I am happy to tell you a little about myself and am honored to be involved in your family’s care.


My dad was in the United States Navy for over 25 years. I was born in San Diego and have lived throughout the United States and Asia. As a result, I have a deep respect and appreciation for all cultures and life experiences. Every member has a family and a community that depends on them. I am honored to practice medicine and be given the opportunity to educate and empower individuals to prevent, treat, and cope with chronic disease. I pursued additional training in geriatrics because older adults have so much wisdom, yet medical, psychosocial, and cognitive issues can complicate their care. As an assistant clinical professor at the UCLA School of Medicine, I’m also passionate about medical education. I am currently the associate program director of the geriatric medicine fellowship at Kaiser Permanente’s Los Angeles Medical Center and participate in multiple diversity and inclusion initiatives including Clinician Patient Communication and LGBT Health.

About my practice

I am board certified in internal medicine, geriatric medicine, palliative medicine, and hospice care. I am part of the Department of Geriatrics and Palliative Medicine, so I take care of our members after they leave the hospital and become short- or long-term residents in skilled nursing facilities. I also provide care to members suffering from life-limiting diseases in the hospital or at home. I use my expertise in contributing to medical education, and I assist in coordinating teams and systems in issues such as transitions of care. I am also involved in evaluating individuals with cognitive disorders and dementia. Some of my goals for members are preserving their function and contributing to healthy aging. I also focus on quality-of-life issues and assist families and members during the end of life. My practice gives me a holistic, whole-person view of health care.

How I thrive

Family and friends only enhance one’s life, and nurturing these relationships is a priority. I make sure to balance work with personal growth. I enjoy doing a core strength and conditioning program, photography, visiting Disneyland, going to live performances (opera, musicals), travelling, and spending time with my husband, friends, and family. Los Angeles is a great city to live in and explore.

Read Less

My office

Languages spoken by medical staff

Help is available in your language. Learn more.

Read Less

My provider type

Physicians and Surgeons

Medical groups and plans

Southern California Permanente Medical Group

List Header Plans Accepted
  • Exclusive Provider Organization (EPO)
  • HMO
  • Medi-Cal Managed Care
  • Point-of-Service Plan (POS)
  • Senior Advantage/Medicare Cost
Internal Medicine Department
6041 Cadillac Ave, Los Angeles, CA 90034

Contact information

  • Advice/appointments/cancellations/messages
  • 1-833-574-2273 (1-833-KP4CARE) (toll free)
  • California Relay Service
  • 711 (TTY for the hearing/speech impaired)
  • Information
  • 1-833-574-2273 (1-833-KP4CARE) (toll free)

Read less

My training, certifications and licensing

Medical school

UC San Francisco
San Francisco , CA

Board certification

Geriatric Medicine

American Board of Internal Medicine

Internal Medicine

American Board of Internal Medicine

Hospice and Palliative Medicine

American Board of Internal Medicine

Medical training


Internal Medicine

University of California Los Angeles
Los Angeles , CA


Internal Medicine

University of California Los Angeles
Los Angeles , CA


Geriatric Medicine

UCLA-VA Geriatrics Fellowship Program
Los Angeles , CA

Joined Permanente Medical Group


Active license information

License number


License type


License issuing state


National Provider Identifier (NPI)

Read Less

My hospitals

All Kaiser Permanente physicians and podiatrists have admitting privileges or the ability to refer patients to our plan hospitals. Admitting privileges of other providers may vary by plan and facility. Contact your plan administrator for details.

4867 W Sunset Blvd, Los Angeles, CA 90027

I have admitting privileges at this hospital.

Setting the standard: Measuring care quality in our hospitals(PDF)

Read Less

To find:

  • a provider's office hours, search our facility directory
  • providers in your plan or accepting new patients, call 1-800-464-4000 (toll free) or 711 (TTY for the hearing/speech impaired)

The information in this online directory is updated periodically. The availability of physicians, hospitals, providers, and services may change. Information about a practitioner is provided to us by the practitioner or is obtained as part of the credentialing process. If you have questions, please call us at 1-800-464-4000 (toll free). For the hearing and speech impaired: 1-800-464-4000 (toll free) or TTY 711 (toll free). You can also call the Medical Board of California at 916-263-2382, or visit their website.

We want to speak to you in the language that you’re most comfortable with when you call or visit us. Qualified interpreter services, including sign language, are available at no cost, 24 hours a day, 7 days a week during all hours of operations at all points of contact. We do not encourage the use of family, friends or minors as interpreters. Only the services of interpreters and qualified staff are used to provide language assistance. These may include bilingual providers, staff, and healthcare interpreters. In-person, telephone, video, and alternative modes of communication are available. Learn more about interpreter services

If you would like to report an error in provider or facility information, please contact us.

Kaiser Permanente enrollees have full and equal access to covered services, including enrollees with disabilities as required under the Federal Americans with Disabilities Act of 1990 and Section 504 of the Rehabilitation Act of 1973.

Kaiser Permanente uses the same quality, member experience, or cost-related measures to select practitioners and facilities in Marketplace Silver-tier plans as it does for all other Kaiser Foundation Health Plan (KFHP) products and lines of business.The measures may include, but are not limited to, HEDIS/CAHPS performance, member/patient complaints, patient safety scores, hospital quality measures, and geographic need. Members enrolled in KFHP Marketplace plans have access to all professional, institutional and ancillary health care providers who participate in KFHP plans’ contracted provider network, in accordance with the terms of members’ KFHP plan of coverage. All Kaiser Permanente Medical Group physicians and network physicians are subject to the same quality review processes and certifications.
Kaiser Permanente uses the same geographic distribution consideration to select hospitals in Marketplace plans as it does for all other Kaiser Foundation Health Plan (KFHP) products and lines of business. Accessibility of medical offices and medical centers in this directory: All Kaiser Permanente facilities are accessible to members.


This page was last updated on: