Photo of Dr. Siobhan Newman

Dr. Siobhan Newman, MD

Concierge Functional Medicine physician, Simi Valley, CA

Newman MD LifeCare

Dr. Newman is a Concierge Functional Medicine physician at Newman MD LifeCare.

Simi Valley, CA 93063

Facts on this page last checked October 2026. How we check doctors

About Dr. Newman

Dr. Newman earned her medical degree in 1994 from The Chicago Medical School. She completed residency training at UMKC School of Medicine. She has practiced emergency medicine in the Los Angeles area since 1999.

She has served as a founder and Chief Medical Officer of Newman MD LifeCare. She is also cellular medicine faculty with the Seeds Scientific Research and Performance physician group. She holds advanced certifications in bioidentical hormone therapy and peptide therapy.

Her further training covers platelet rich plasma, injectable therapies, immune system regulation and genomics. Her approach is high-performance medicine, using biotechnology for performance and for recovery. She is currently studying the intelligent cell, with a focus on small molecule therapies.

Her stated goal is an immersive patient experience that helps each client find success in optimal health and happiness. She is also a former NCAA champion in collegiate volleyball.

Membership and fees

Newman MD LifeCare is a cash-pay concierge practice.

Dr. Newman practices direct-pay cellular medicine there.

Education and credentials

Degree
MD
Medical school
The Chicago Medical School
Residency
UMKC School of Medicine
Board certification
Emergency Medicine
Other certification
Bioidentical Hormone Therapy (World Link Medical Academy of Preventative and Innovative Medicine), Peptide Therapy (A4M)
NPI
1972569887

Hospital and practice affiliations

Cellular medicine faculty, Seeds Scientific Research and Performance physician group

Location

Simi Valley, CA 93063
Directions

Recognition and research

Media and books

Featured in a podcast episode titled "From the ER to Longevity Medicine and How Peptides Fit into the Picture"

Patient reviews

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Questions patients ask

Does Dr. Newman take insurance, or offer a membership?

Newman MD LifeCare is a cash-pay concierge practice. Dr. Newman practices direct-pay cellular medicine there.

Where did Dr. Newman train?

Dr. Newman earned her medical degree in 1994 from The Chicago Medical School. She completed residency training at UMKC School of Medicine.

Is Dr. Newman board certified?

Dr. Newman is board certified in Emergency Medicine.

What hormone and peptide certifications does Dr. Newman hold?

She holds an advanced certification in Bioidentical Hormone Therapy from World Link Medical Academy of Preventative and Innovative Medicine. She also holds an advanced certification in Peptide Therapy from A4M, The American Academy of Anti-Aging.

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