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

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Patient Reviews

4.9 out of 5
(214 Ratings)
Jan 30, 2026
Anonymous
Good doctorI came to him because my cardiologist highly recommended him My first visit I felt like it was a little rushed and quick but he is ordering test to be done When I asked him for a referral for a portable oxygen tank he said no he thinks once they determine I have sleep apnea that the cpap will solve my low oxygen during day So now Im stuck inside most the time because every time I go out my oxygen levels drop
Jan 29, 2026
Julie T.
Jan 29, 2026
Vicki R.
He came highly recommended by my cardiologist. I did feel a little rushed with him during appointment it was very quick and I’m a new patient. He ordered a couple of test to be done and when I asked about getting a referral for a portable oxygen tank he said no. I stay in most of the time because a lot of times it drops when I’m our, so it would be helpful having one.
Jan 26, 2026
Delbert D.
Great doctor , skilled and patient oriented
Jan 24, 2026
Ana K.
Jan 22, 2026
Nancy C.
Dec 23, 2025
Femia T.
It was quick
Dec 22, 2025
Concepcion R.
Dec 19, 2025
Teodoro L.
Dec 16, 2025
Mario V.

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