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 & Affiliations

Locations

Research

Trial Number: 339-23

Condition: Cystic Fibrosis

Conducted at: Long Beach Medical Center

Participant Age Range: 18 years to 65 years

Participant Gender: Any

Enrolling Participants: No

Trial Number: 303-22

Condition: Cystic Fibrosis

Conducted at: Miller Children’s & Women’s Hospital, Long Beach Medical Center

Participant Age Range: 6 years and older

Participant Gender: Any

Enrolling Participants: Yes

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
(253 Ratings)
Apr 2, 2026
Evelyn J.
He listened to my concerns and didn't make me feel rushed. I waited several months for the appointment.
Apr 1, 2026
Juan R.
Always provides proper attention and explain my health in a way I can understand and meets my health care needs .. thank you to the staff whom uphold a professional status!!
Mar 28, 2026
Cesar B.
Mar 24, 2026
Angelita R.
His very professional and explained everything you can understand
Mar 24, 2026
Janet V.
Such a wonderful doctor. He listens to my concerns and gives back suggestions to help me. Highly recommend Dr. Johannes.
Mar 24, 2026
Jane R.
Very kind, patient, and knowledgable.
Mar 22, 2026
Diane K.
Dr Johannes answered all my questions and explained, in detail, my health condition and what my future treatment would be.
Mar 20, 2026
Sonia S.
Attentive.
Mar 17, 2026
Judith K.
He listens and he cares. He saved my life when I could not breathe.
Mar 16, 2026
Esther P.
Great doctor, professional & personable.

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