About

Jimmy Johannes, MD, finds his career in medicine to be uniquely interesting and challenging and considers it a privilege to be able to engage with his community on such a personal level. He enjoys the challenges of helping others maintain health, diagnosing and treating disease, and reducing suffering by contributing to and applying the latest in biomedical science.

Dr. Johannes is board certified in Internal Medicine. He received his medical education from the School of Medicine at the University of California, Irvine. Following this, he completed his training with a residency at Cedars-Sinai Medical Center and the VA Greater Los Angeles Healthcare System and a fellowship at UCLA’s David Geffen School of Medicine. Specializing in pulmonary and critical care, he is particularly interested in pulmonary hypertension and interstitial lung diseases.

Additionally, Dr. Johannes has certification in Basic Critical Care Ultrasound which he received from the Division of Pulmonary and Critical Care Medicine at UCLA Medical Center. He is a member of the American College of Chest Physicians, the American College of Physicians, and the American Thoracic Society.

When not practicing medicine, Dr. Johannes enjoys spending time with his family and friends, going to the farmer’s market, running around town or by the beach, and eating a good bowl of pho.

*As a specialist, Dr. Johannes may not be selected as a primary care physician.

Languages

English

Provider Specialty

Pulmonary Disease, Critical Care Medicine, Pulmonology

Education

Medical School

UCI School of Medicine

2010

Internship/Residency - Internal Medicine

Cedars-Sinai Medical Center

2013

Fellowship Program - Pulmonary Disease

UCLA Medical Center

2016

Locations

Insurance

Please consult your health care provider or health plan for the most accurate information about your health plan’s coverage of a particular health care service offered at a MemorialCare facility. Learn more about our Accepted Health Plans.

Patient Reviews

4.9 out of 5
(160 Ratings)
Nov 5, 2025
Deb T.
Oct 31, 2025
Sheila H.
A lot of information and a willingness to listen.
Oct 16, 2025
Patty T.
We Truly Appreciate Dr Johannes and his Staff. Everyone Treats You So Nice and the wait is Never too long!! Thank You for Your Services!!
Oct 1, 2025
Juan n.
DR.JIMMY HAS ALWAYS HELPED ME MANAGE MY HEALTH CONDITIONS AND SET ME ON THE CORRECT TRACK TO A BETTER LIVELIHOOD... I WILL ALWAYS BE GREAT FULL FOR HIS MEDICAL ADVICE!!...
Sep 27, 2025
Janet V.
I highly recommend this doctor. He is very much into my needs.
Sep 26, 2025
Lynnette D.
Sep 18, 2025
Janice B.
Dr Johannes is an amazing Doctor! He is covers every aspect of care. He is highly skilled and knowledgeable. His pulmonary skills is second to none! He's caring and compassionate and goes above and beyond to ensure his patients are well cared for. He let's me know his office is a phone call away if need pulmonary services. Thank you Dr Johannes and your staff also
Sep 8, 2025
Ramiro P.
Dr.Jimmy he has patient to example e everything, take his time
Aug 8, 2025
Linda H.
Jul 21, 2025
Nellie Y.
Dr. Johannes is so easy to speak with and talk about my health problems. He is gentle and soft spoken, and I highly recommend him.

Source: Reviews are aggregated from third-party review sites such as Facebook, Google, HealthGrades, RepuGen, Vitals, WebMD, and Yelp.