Dr. Sarassawadee Suwanjinda (Dr. Petch), longevity and functional medicine doctor in Bangkok, Co-Founder and Chief Medical Strategy Officer at Healthi Life
Longevity Programs

Dr. Sarassawadee Suwanjinda

Longevity & Functional Medicine Physician — known as Dr. Petch
Co-Founder · Chief Medical Strategy Officer · Healthi Life, Bangkok

Dr. Sarassawadee Suwanjinda, known as Dr. Petch, leads the Longevity Programs at Healthi Life, The Urban Longevity House in Bangkok, as Co-Founder and Chief Medical Strategy Officer. She is a longevity and functional medicine physician and a Diplomate of the International Board of Lifestyle Medicine, trained at Davao Medical School Foundation (MD, 2016) and holding Thai Medical License No. 63464. Her approach is guided by the analysis of up to 300 biomarkers across six pillars of biological aging, supported by ongoing physician oversight and personalized care. She views longevity not as optimization alone, but as stewardship of human biology — preserving function, extending healthspan, and helping each patient age with strength, clarity, and purpose.

Who is Dr. Petch?

Dr. Sarassawadee Suwanjinda — known to her guests as Dr. Petch — is a longevity and functional medicine physician in Bangkok and the Co-Founder and Chief Medical Strategy Officer of Healthi Life, The Urban Longevity House on Ekkamai 10 Alley. She earned her MD from Davao Medical School Foundation in 2016 and holds Thai Medical License No. 63464, with nearly 10 years in practice. She is a Diplomate of the International Board of Lifestyle Medicine (IBLM), Cellular Therapy Certified by the ISSCA, certified by the Certified Board of Anti-Aging Medicine (CBAM), and a member of the American Academy of Anti-Aging Medicine (AAAM). At Healthi Life she directs the Longevity Programs, translating a panel of up to 300 biomarkers across six pillars of biological aging into a single, physician-governed protocol for each guest.

How Dr. Petch practices longevity medicine

Rather than treating symptoms in isolation, Dr. Petch reads a panel of up to 300 biomarkers across six pillars of biological aging and translates them into a single, physician-governed protocol. Each guest receives a quarterly biomarker review and a monthly physician follow-up, so the plan adapts as the biology changes rather than staying fixed on paper.

Her functional medicine background shapes how she sequences care: measure first, understand the root cause, then decide. As a Diplomate of the International Board of Lifestyle Medicine, she anchors every protocol in the evidence base of nutrition, movement, sleep, stress, and metabolic health before layering in regenerative therapy. The goal is not a faster result — it is a durable one.

Credentials & training

  • MD — Davao Medical School Foundation (2016)
  • Thai Medical License — No. 63464
  • IBLM — International Board of Lifestyle Medicine (Diplomate)
  • ISSCA — International Society for Stem Cell Application (Cellular Therapy Certified)
  • CBAM — Certified Board of Anti-Aging Medicine
  • AAAM — American Academy of Anti-Aging Medicine (Member)

Recognition & thought leadership

In May 2026, Dr. Petch took part in the NPT / PMU-B Executive Programme contributing to Thailand's Medical Tourism Roadmap 2026 — a national initiative positioning Thailand as a global destination for longevity and preventive medicine. She writes and speaks on how data-led longevity care can be delivered at scale. Read Dr. Petch on Thailand's Medical Tourism Roadmap 2026 →

Programs Dr. Petch directs

As Chief Medical Strategy Officer, Dr. Petch leads the long-term, recurring side of Healthi Life — the Longevity Programs that retain guests for the next 30 years rather than the next visit.

Dr. Petch co-founded Healthi Life with Dr. Napat Hunsajarupan (Dr. First). Learn more about the founders of Healthi Life.

Frequently asked questions

Who is Dr. Sarassawadee Suwanjinda (Dr. Petch)?

Dr. Sarassawadee Suwanjinda, known as Dr. Petch, is a longevity and functional medicine physician in Bangkok and Co-Founder and Chief Medical Strategy Officer of Healthi Life, The Urban Longevity House on Ekkamai 10 Alley. She earned her MD from Davao Medical School Foundation in 2016, holds Thai Medical License No. 63464, and has practiced for nearly 10 years.

What does Dr. Petch specialize in?

Dr. Petch specializes in longevity medicine, functional medicine, and lifestyle medicine. She designs physician-governed protocols based on a panel of up to 300 biomarkers across six pillars of biological aging, covering metabolic health, hormones, inflammation, and preventive care.

What are Dr. Petch's medical qualifications and certifications?

Dr. Petch holds an MD (Davao Medical School Foundation, 2016) and Thai Medical License No. 63464. She is a Diplomate of the International Board of Lifestyle Medicine (IBLM), Cellular Therapy Certified by the ISSCA, certified by the Certified Board of Anti-Aging Medicine (CBAM), and a member of the American Academy of Anti-Aging Medicine (AAAM).

What programs does Dr. Petch lead at Healthi Life?

As Chief Medical Strategy Officer, Dr. Petch directs the Longevity Programs at Healthi Life — including individual longevity protocols, corporate executive longevity, functional medicine, executive health check-ups, and hormone optimization — each with quarterly biomarker reviews and monthly physician follow-up.

How do I book a consultation with Dr. Petch in Bangkok?

You can book a discovery consultation with Dr. Petch online through the Healthi Life booking form, by WhatsApp at +66 91 999 1744, or by phone. Healthi Life is located at 94 Ekkamai 10 Alley, Bangkok.

Consult Dr. Petch

A 30-minute discovery consultation, doctor-guided, no commitment.

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