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MICHAEL HISASHI NAGOSHI M.D.
NPI 1407945116
Internal Medicine in Honolulu, HI

Active since October 12, 2006PECOS Enrolled
321 N KUAKINI ST, SUITE #201, HONOLULU, HI 96817(808) 523-8611 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Michael Hisashi Nagoshi M.d. NPPES

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

MICHAEL HISASHI NAGOSHI M.D. (NPI 1407945116) is an individual internal medicine provider in Honolulu, Hawaii, licensed in Hawaii (MD-5504) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1407945116
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMICHAEL HISASHI NAGOSHICredential: M.D.
Location Address321 N KUAKINI ST, SUITE #201Honolulu, HI 96817-2364
Mailing Address321 N Kuakini St, Suite #201Honolulu, HI 96817-2364 · (808) 523-8611
Phone(808) 523-8611
Sole ProprietorNo
Enumeration DateOctober 12, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1407945116 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 · MD-5504
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.
321 N KUAKINI ST, Honolulu, HI 96817
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Other Identifiers 3

Medicare UPINE50828
Medicaid02191101HI
Medicare ID-Type UnspecifiedBDQVV

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michael Hisashi Nagoshi M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignments

2

Medicare enrollment records show Michael Nagoshi reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Queen Emma Clinics
0.9 mi
Clinic/Center
1301 PUNCHBOWL ST
Honolulu, HI 96813
  • Reassigned Medicare billing, Hawaii enrollment
  • Medicare enrollment name: The Queens Medical Center
  • 809 clinicians in this Medicare group
NPI 1528097094 (808) 547-4970
Queens University Medical Group
1.0 mi
Multi-Specialty
1301 PUNCHBOWL ST
Honolulu, HI 96813
  • Reassigned Medicare billing, Hawaii enrollment
  • 859 clinicians in this Medicare group
NPI 1891441382 (808) 691-1000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

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.
191 services182 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.
36 services36 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 96817 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 5

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

Respiratory assist device, bi-level pressure capability, without backup rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) E0470
DME-Other DME · category DE001N
1 supplier12 claims12 services$68.31 avg. paid by Medicare
Continuous positive airway pressure (cpap) device E0601
DME-Other DME · category DE001N
1 supplier26 claims26 services$23.56 avg. paid by Medicare
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
1 supplier12 claims12 services$71.02 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
1 supplier11 claims11 services$185.29 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
1 supplier12 claims12 services$34.03 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 20

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

EMILY DIEP, M.D., LLC
Internal Medicine
321 N KUAKINI ST, SUITE NUMBER 715
HONOLULU, HI 96817
Honolulu County (808) 523-6461
ELIOT NOBUO TOMOMITSU M.D.
Pediatrics
321 N KUAKINI ST, SUITE #201
HONOLULU, HI 96817
Honolulu County (808) 523-8611
BARON K. F. CHING M.D.
Internal Medicine
321 N KUAKINI ST, 708
HONOLULU, HI 96817
Honolulu County (808) 536-7791
DR. STUART SUGIHARA M.D.
Internal Medicine (Pulmonary Disease)
321 N KUAKINI ST, STE 502
HONOLULU, HI 96817
Honolulu County (808) 531-9753
CHAELYN CULLEN
Nurse Practitioner
321 N KUAKINI ST
HONOLULU, HI 96817
Honolulu County (808) 772-4743
DIANE M. SAKAI MD
Internal Medicine
321 N KUAKINI ST, SUITE 514
HONOLULU, HI 96817
Honolulu County (808) 533-4274
JOSEPH K KOO MD
Internal Medicine (Infectious Disease)
321 N KUAKINI ST
HONOLULU, HI 96817
Honolulu County (808) 523-6461
DR. OSAMU FUKUYAMA M.D.
Internal Medicine (Cardiovascular Disease)
321 N KUAKINI ST, SUITE 504
HONOLULU, HI 96817
Honolulu County (808) 538-1125

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 Michael Nagoshi's NPI number?

The NPI number for Michael Nagoshi is 1407945116. It was assigned to this individual provider in the NPPES registry on October 12, 2006.

Where is Michael Nagoshi located?

Michael Nagoshi practices at 321 N Kuakini St Suite #201, Honolulu, HI 96817. The listed phone number is (808) 523-8611.

What is Michael Nagoshi's specialty?

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

Is Michael Nagoshi enrolled in Medicare?

Yes. Michael Nagoshi is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Michael Nagoshi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Nagoshi reassigns Medicare benefits to 2 organizations: Queen Emma Clinics (Honolulu, HI) and Queens University Medical Group (Honolulu, HI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Michael Nagoshi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Michael Nagoshi was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.