Summary

Dr. Samuel Johnsen specializes in internal medicine, providing comprehensive care for adult patients. He earned his medical degree from American University of the Caribbean School of Medicine and completed his residency at Memorial Medical Center. With 34 years of clinical experience, Dr. Johnsen brings extensive knowledge to patient care. He speaks Spanish and Chinese, allowing him to serve diverse patient populations.

Dr. Johnsen practices at Maui Memorial Medical Center in Lahaina, Hawaii. He focuses on managing conditions such as high blood pressure and cholesterol disorders, including elevated cholesterol levels in children and teenagers. His clinical expertise includes performing heart monitoring tests and specialized heart imaging studies. Patients have given Dr. Johnsen an average rating of 4.5 out of 5 on Vitals.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.5
  • 34 years of experience
  • 28 insurance plans accepted
  • speaks Spanish, Chinese
  • 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. William H Mitchell, MDDr. Roy Masaji Matsuyama, MDDr. Rory Vincent Oconnor, MD
Internal MedicinePulmonologyGastroenterologyGastroenterology
Accepts New Patients
4.5 
3.3 
3.1 
34 Years of Experience 54 Years of Experience 42 Years of Experience 46 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks Spanish, Chinese Speaks Chinese, Spanish Speaks English Speaks English
Lahaina , HIWailuku , HIKahului , HIWailuku , HI
Med School: American University Of The Caribbean School Of Medicine Med School: Tufts University School Of Medicine Med School: University Of Hawaii At Manoa Med School: University Of California San Francisco School Of Medicine
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

Where is Samuel Johnsen's office located?
Samuel Johnsen's office is located at 40 Kupuohi St Ste 204, Lahaina, HI, 96761.
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.
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.
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.

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