Summary

Dr. Samuel Johnsen is an internal medicine physician who has dedicated 34 years to caring for patients with a wide range of medical conditions. He earned his medical degree from American University of the Caribbean School of Medicine and completed his residency training at Memorial Medical Center. Dr. Johnsen is fluent in Chinese and Spanish, allowing him to serve diverse communities with personalized care.

Dr. Johnsen practices at Maui Memorial Medical Center in Lahaina, Hawaii, where he focuses on managing common health concerns that affect many adults. He treats patients with high cholesterol and helps families address elevated cholesterol levels in children and teenagers. His expertise includes caring for individuals with high blood pressure and performing important diagnostic tests like electrocardiograms to monitor heart health. Patients have given Dr. Johnsen an average rating of 4.5 stars, reflecting their confidence in his compassionate and thorough approach to internal medicine.
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Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.5
  • 34 years of experience
  • 28 insurance plans accepted
  • speaks Chinese, Spanish
  • Memorial Medical Center
  • 6 written reviews
  • 1 specialty
  • 8 areas of expertise
  • 1 hospital affiliation
  • 1 office location
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Location

Samuel Ernest William Johnsen

40 Kupuohi St Ste 204Lahaina, HI 96761
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 12:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
Sat8:00 am - 1:00 pm
SunClosed

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Samuel Ernest William Johnsen, MDDr. Adewumi Bakare DMSc, PA-CDr. Biswarup Syam, MDDr. Till Peterbodo Hansen, MD
Internal MedicineInternal MedicineGastroenterologyEndocrinology, Diabetes & Metabolism
Accepts New Patients Accepts New Patients Accepts New Patients
4.5 
4.4 
34 Years of Experience 5 Years of Experience 45 Years of Experience 39 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks Chinese, Spanish Speaks English, Spanish, Yoruba, French, Russian, Arabic, Chinese, Chinese (Mandarin) Speaks English Speaks English, Spanish
Lahaina , HIMesquite , TXWailuku , HIKihei , HI
Med School: American University Of The Caribbean School Of Medicine Med School: University of Lynchburg - DMSc Med School: Kolkata Medical College & Hospital Med School: Chicago Medical School At Rosalind Franklin University-Medicine & Sciences
Current Profile
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Insurance Plans Accepted by Samuel Ernest William Johnsen

  • AARP
  • Aetna
  • AltaMed Senior BuenaCare (PACE)
  • Anthem Blue Cross
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Arizona
  • Blue Cross Blue Shield of Illinois
  • Blue Cross Blue Shield of Texas
  • CareFirst Blue Cross Blue Shield
  • Harvard Pilgrim Health Care
  • Hawaii Medical Assurance Association (HMAA)
  • Hawaii Medical Service Association (HMSA)
  • Health Alliance
  • Humana
  • Humana - HMO
  • Humana - Medicare
  • Kaiser Permanente
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Medicare - PPO
  • PacificSource Health Plans
  • Regence BlueShield
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - Medicare
  • Wellcare
  • Wellcare - Medicare (Advantage HMO)

Medical Specialties

Samuel Ernest William Johnsen has the following specialty

Specialty Expertise

Samuel Ernest William Johnsen has the following 8 areas of expertise

  • Check-up
  • Flu (Human Influenza)
  • Heartburn
  • Immunization
  • Physical
  • Vaccination
  • Weight Loss
  • Weight Loss (non-surgical)

Certifications, License, & Education

34 Years Experience

Samuel Ernest William Johnsen holds an expired medical license in the state of Hawaii.

Medical License

Medical Doctor with an expired medical license in the state of Hawaii that expired in 2026.

Education & Training

Residency

Completed their residency at Memorial Medical Center.

Medical School

Graduated from American University Of The Caribbean School Of Medicine in 1992.

NPI Number

Samuel Ernest William Johnsen's NPI number is 1669491858.

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Frequently Asked Questions

Is Samuel Johnsen accepting new patients?
Samuel Johnsen is accepting new patients on Vitals. View Samuel Johnsen's profile on Vitals to make an appointment.
Does Samuel Johnsen accept virtual/telehealth appointments?
Samuel Johnsen has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
What languages does Samuel Johnsen speak?
Samuel Johnsen speaks Chinese and Spanish.
Which hospitals is Samuel Johnsen affiliated with?
Samuel Johnsen is affiliated with Maui Memorial Medical Center.
Does Samuel Johnsen accept my insurance?
You can see the insurance plans that Samuel Johnsen accepts on their Vitals profile.

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