Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Samuel Ernest William Johnsen, MD

Individual provider Internal Medicine Physician · NPI 1669491858

Samuel Ernest William Johnsen, MD is an Internal Medicine in Lahaina, Hawaii. Qualified in 1992, 34 years ago. Accepts Medicare assignment and offers telehealth. Licensed in Hawaii.

Years since qualifying
34
Licensed in
HI
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

180 Dickenson St Ste 103
Lahaina, HI 96761-1215
Phone: (808) 214-5985
Fax: (808) 214-6766
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD12422 (HI)

Record details

NPI number1669491858
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 19, 2006
Last updated in NPPESOctober 2, 2018

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1992 (34 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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