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SAMUEL ERNEST WILLIAM JOHNSEN M.D.
NPI 1669491858
Internal Medicine in Lahaina, HI

Active since July 19, 2006PECOS EnrolledAccepts Medicare Assignment
180 DICKENSON ST STE 103, LAHAINA, HI 96761(808) 214-5985(808) 214-6766 Get Directions Write a Review

NPPES record last updated: October 2, 2018. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Samuel Ernest William Johnsen M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SAMUEL ERNEST WILLIAM JOHNSEN M.D. (NPI 1669491858) is an individual internal medicine provider in Lahaina, Hawaii, licensed in Hawaii (MD12422) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Maui Memorial Medical Center, and is a graduate of Other (1992).

NPPES Registry Identity

NPI1669491858
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameSAMUEL ERNEST WILLIAM JOHNSENCredential: M.D.
Location Address180 DICKENSON ST STE 103Lahaina, HI 96761-1215
Mailing Address180 Dickenson St Ste 103Lahaina, HI 96761-1215 · (808) 214-5985 · Fax (808) 214-6766
Phone(808) 214-5985
Fax(808) 214-6766
Sole ProprietorNo
Medical School CMSOtherGraduated 1992
Enumeration DateJuly 19, 2006
Last NPPES UpdateOctober 2, 2018
✔ NPI 1669491858 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in HI · MD12422
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
180 DICKENSON ST STE 103, Lahaina, HI 96761
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Other Identifiers 5

Other824532282HI · Hma
Medicaid824532282HI
Other00C0241160HI · Hmsa
Other824532282HI · Hmaa
Other824532282HI · Uha

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Samuel Ernest William Johnsen M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1456486315
PECOS Enrollment IDI20100317000222
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
298 services119 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
225 services140 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
17 services12 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
15 services11 patients
Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) 87811
This is a test to detect COVID-19, the virus causing severe respiratory illness. It uses a method called immunoassay, which identifies the virus by its unique proteins. The test is directly observed for accuracy. It helps determine if you're currently infected.
13 services13 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
12 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Maui Memorial Medical Center

Acute Care Hospitals · Wailuku, HI
3/5 CMS rating
OwnershipGovernment - State
CMS Certification Number120002
Location221 Mahalani StreetWailuku, HI 96793 · Maui County
Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 96761 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$136.68 typical visit price
range $60.53 – $180.05
Typical copayment $34.17 (range $15.13 – $45.01)
Most-billed visit code 99204
Established Patient
$105.65 typical visit price
range $20.09 – $147.56
Typical copayment $26.41 (range $5.02 – $36.89)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers14 claims14 services$119.36 avg. paid by Medicare
Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738
DME-Oxygen and Supplies · category DC000N
2 suppliers14 claims14 services$38.21 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ELIZABETH WRIGHT SCHUSSER M.D.
Family Medicine
180 DICKENSON ST STE 103
LAHAINA, HI 96761
Maui County (808) 662-5642
LAULEA HEALTH CENTER LLC
Clinic/Center (Medical Specialty)
180 DICKENSON ST STE 103
LAHAINA, HI 96761
Maui County (808) 344-2053

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Samuel Johnsen's NPI number?

The NPI number for Samuel Johnsen is 1669491858. It was assigned to this individual provider in the NPPES registry on July 19, 2006.

Where is Samuel Johnsen located?

Samuel Johnsen practices at 180 Dickenson St Ste 103, Lahaina, HI 96761. The listed phone number is (808) 214-5985.

What is Samuel Johnsen's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Samuel Johnsen enrolled in Medicare?

Yes. Samuel Johnsen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Samuel Johnsen affiliated with any hospitals?

According to CMS data, Samuel Johnsen is affiliated with Maui Memorial Medical Center.

When was this NPI record last updated?

The NPPES record for Samuel Johnsen was last updated on October 2, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.