Dr. Michael Hayashi , MD
Surgery • Honolulu, HI
1356 Lusitana St Fl 6, Department Of Surgery
Honolulu, HI 968132409
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on May 30, 2007; this date does not establish years in practice.
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Published CMS data list 37 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99291 — Critical care: 37 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See the full table · Guide: How to read Medicare Part B data
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Fewer Medicare Part B services than 80% of clinicians listed under Surgery in Honolulu, HI (2024, 32 clinicians with data). Median for this group: 88. Middle half: 39 to 172.
Fewer Medicare Part B services than 80% of clinicians listed under Surgery in Hawaii (2024, 55 clinicians with data). Median for this group: 114. Middle half: 41 to 195.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 193 in 2020 to 37 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
1356 Lusitana St Fl 6
Department Of Surgery
Honolulu, HI 968132409
CMS Doctors and Clinicians lists 1 group name: Queens University Medical Group. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2003
What Public CMS Data Show
Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
31 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $7,379 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $5,846 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Open Payments general payments, program year 2024
All general payments: $122.23 across 3 records.
By nature of payment
- Education: $100.00 across 2 records.
- Food and Beverage: $22.23 across 1 record.
Reporting-company totals
- CSL Behring: $100.00 across 2 records.
- Dilon Technologies, Inc.: $22.23 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2024 (published June 30, 2026).
Years since graduation
23 years (graduated 2003)
CMS Doctors and Clinicians data list 2003 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2007
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Hayashi has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Hayashi as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Honolulu and Hawaii
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 80% of clinicians listed under Surgery in Honolulu, HI (2024, 32 clinicians with data). Median for this group: 88. Middle half: 39 to 172.
Fewer Medicare Part B services than 80% of clinicians listed under Surgery in Hawaii (2024, 55 clinicians with data). Median for this group: 114. Middle half: 41 to 195.
Medicare-allowed amount
A lower Medicare-allowed amount than 65% of clinicians listed under Surgery in Honolulu, HI (2024, 32 clinicians with data). Median for this group: $11,828. Middle half: $5,750 to $24,037.
A lower Medicare-allowed amount than 65% of clinicians listed under Surgery in Hawaii (2024, 55 clinicians with data). Median for this group: $13,828. Middle half: $6,146 to $25,216.
Paid by Medicare
A lower Medicare payment amount than 65% of clinicians listed under Surgery in Honolulu, HI (2024, 32 clinicians with data). Median for this group: $9,105. Middle half: $4,288 to $18,371.
A lower Medicare payment amount than 65% of clinicians listed under Surgery in Hawaii (2024, 55 clinicians with data). Median for this group: $9,815. Middle half: $4,979 to $18,987.
89 active clinicians are listed under Surgery with a practice address in Honolulu, HI (145 in Hawaii).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Honolulu
20.2% of these 89 clinicians have the CMS telehealth indicator.
46.1% of these 89 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 81% from 193 in 2020 to 37 in 2024.
- 2020: 193
- 2021: 141
- 2022: 61
- 2023: 58
- 2024: 37
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Medicare-allowed amount
Medicare-allowed amount decreased 71% from $25,745 in 2020 to $7,379 in 2024.
- 2020: $25,745
- 2021: $20,603
- 2022: $8,255
- 2023: $9,570
- 2024: $7,379
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Paid by Medicare
Paid by Medicare decreased 72% from $20,532 in 2020 to $5,846 in 2024.
- 2020: $20,532
- 2021: $16,049
- 2022: $6,588
- 2023: $7,310
- 2024: $5,846
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $60.07 in 2019 to $122.23 in 2024.
- 2019: $60.07
- 2020: $14.34
- 2024: $122.23
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Open Payments (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2024 (payments made January 1 – December 31, 2024): fewer than 11 records totaling $122.23.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| CSL Behring |
Education
In-kind items and services
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Kcentra | General | $80.00 |
| Dilon Technologies, Inc. |
Food and Beverage
In-kind items and services
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HEMOBLAST BELLOWS | General | $22.23 |
| CSL Behring |
Education
In-kind items and services
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Kcentra | General | $20.00 |
Source: CMS Open Payments, program year 2024, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99291
Critical care, first 30-74 minutes
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37 | 21 | $517.00 | $199.42 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 208600000X
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - GENERAL SURGERY
I20100819000773
HI
9234263740
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Queens University Medical Group
1329 Lusitana St, Honolulu, HI 968132401
Queens University Medical Group
1380 Lusitana St, Honolulu, HI 968132448
Queens University Medical Group
1301 Punchbowl St, Honolulu, HI 968132499
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Orthopaedic Surgery
Doctor of Medicine (M.D.)
Orthopaedic Surgery
Doctor of Medicine (M.D.)
Surgery
Doctor of Medicine (M.D.)
Surgery
Doctor of Osteopathic Medicine (D.O.)
Orthopaedic Surgery
Doctor of Medicine (M.D.)
Orthopaedic Surgery
Career & Practice History
NPI enumerated May 30, 2007.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Surgery Specialists in Honolulu
- Dr. Eva Kiezik, DMD
- Dr. Manami Okado, MD
- Dr. Steven Fowler, MD
- Dr. Riley Kitamura, MD
- Dr. Felix Yong, MD, MS
- Dr. Gwendolyn Garnett, MD
Mailing Address
1356 Lusitana St Fl 6, Department Of Surgery
Honolulu, HI 968132409
Phone: 8085862920