Meet Emeritus Prof. Wasan Udayachalerm - Expert Cardiologist

At Bangpakok 9 International Hospital, patients have access to the distinguished expertise of Emeritus Professor Wasan Udayachalerm, a senior consultant whose career is dedicated to advanced heart care. As a specialist in both Cardiology and Internal Medicine of Cardiology, Prof. Udayachalerm provides comprehensive, non-invasive management of complex heart conditions, from hypertension and heart failure to coronary artery disease. His unique, collaborative approach bridges the gap between medical cardiology and Cardiac Surgery, ensuring patients receive perfectly coordinated treatment plans.

Prof. Udayachalerm’s esteemed "Emeritus" title reflects a lifetime of medical achievements, contributions to cardiology education, and a commitment to pioneering heart health standards. He is renowned for combining profound academic knowledge with compassionate, personalized patient care. Whether managing chronic cardiac conditions or preparing patients for surgical intervention, his meticulous diagnostic skill and holistic perspective set him apart.

For those seeking a top cardiologist in Bangkok for expert second opinions, complex case management, or integrated cardiac care, Emeritus Prof. Wasan Udayachalerm represents a trusted authority. Schedule a consultation at Bangpakok 9 International Hospital to benefit from his exceptional experience and patient-centered philosophy.

Specialities

Emeritus Prof. Wasan Udayachalerm specializes in treating a range of conditions within their field. Learn more about the treatments, procedures, and medical areas where they bring extensive experience and trusted care.

Educational Info

Learn about Emeritus Prof. Wasan Udayachalerm’s medical journey — from education to specialization — and how their academic training supports their commitment to patient care.

  • checkedFaculty of Medicine Siriraj Hospital, Mahidol University(M.Ch. 1976)

Memberships

Emeritus Prof. Wasan Udayachalerm is an active member of several esteemed medical organizations, ensuring alignment with the latest clinical guidelines and ethical practices.

  • checkedThe Heart Association of Thailand under the Royal Patronage of H.M. the King

Award Info

Over the years, Emeritus Prof. Wasan Udayachalerm has received multiple awards that highlight their dedication to patient well-being, innovation in treatment, and leadership in the medical community.

  • checkedOutstanding Physician Award (Medical Association of Thailand)(Medical Association of Thailand )

Experience

With a career spanning 43+ years, Emeritus Prof. Wasan Udayachalerm has served in various esteemed medical centers, contributing to both outpatient and surgical care across a wide spectrum of cases.

  • checkedFaculty of Medicine Siriraj Hospital, Mahidol University(Professor 1985-01-01 - 2005-01-01)

Frequently Asked Questions

Explore answers to commonly asked questions related to treatments, consultations, and services provided by Emeritus Prof. Wasan Udayachalerm.

Patient Experience Icon

Patients share their experiences and feedback about their treatment with Emeritus Prof. Wasan Udayachalerm, reflecting the doctor’s commitment to quality care, advanced treatment, and patient-focused service. Explore real stories from individuals who have trusted Emeritus Prof. Wasan Udayachalerm with their health.

I'd been to a few doctors...
Nov 07, 2025

I'd been to a few doctors about this nagging fatigue and stomach thing, and everyone just said it was stress. Honestly, I was starting to think I was imagining it. Dr. Wasan was different. He actually listened, asked a bunch of questions that seemed unrelated at first, and ordered a specific test no one else had. Turns out it was a weird vitamin deficiency linked to a mild autoimmune thing. He explained it in plain Thai, drew me a little diagram on his notepad. It wasn't magic, just someone paying proper attention.

Had to get a colonoscopy at...
Oct 23, 2025

Had to get a colonoscopy at Bangpakok 9. Not exactly my idea of a fun day out, you know? Parking was a bit of a hunt, but once inside, everything was straightforward. Dr. Wasan did the procedure himself. The whole thing felt very calm and professional. He talked me through each step before he did it. Woke up feeling fine, got the all-clear results a few days later. It was just a routine check, but he made a potentially awkward thing feel completely normal.

My husband was the patient, but...
Jan 01, 2026

My husband was the patient, but I was there for every appointment. The hospital itself is nice and clean, but what really stood out was the team. The nurses at the clinic were so patient with my endless questions. One even helped me figure out the pharmacy line when I looked lost. And Dr. Wasan's assistant always remembered our names and made sure we understood the next steps. It felt like people were working together, not just doing a job.

Look, I'm not great with doctors....
Oct 31, 2025

Look, I'm not great with doctors. I get nervous and clam up. At my first appointment with Dr. Wasan, I was just giving yes/no answers. He noticed, put his file down, and just... chatted for a few minutes. Asked about my work, my drive in. Didn't rush. By the time we got back to the medical stuff, I was relaxed enough to tell him what was actually wrong. He has this quiet, steady way about him that puts you at ease. It makes a big difference.


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