Dr. Greg K. Sakamoto , MD
Dermatology • Honolulu, HI
550 S Beretania St, Suite 603
Honolulu, HI 968132414
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 February 26, 2007; this date does not establish years in practice.
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Published CMS data list 2,514 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:
- 17003 — Destruction of precancer skin growth, 2-14 growths: 857 service units.
- 99213 — Established patient outpatient office visit: 691 service units.
- 17000 — Destruction of precancer skin growth, 1 growth: 227 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 all 15 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 1,563 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Halobetasol Propionate — 197 prescription fills, including refills.
- Clobetasol Propionate — 176 prescription fills, including refills.
- Mupirocin — 139 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 37 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 70% of clinicians listed under Dermatology in Honolulu, HI (2024, 23 clinicians with data). Median for this group: 1,431. Middle half: 951 to 2,656.
More Medicare Part B services than 60% of clinicians listed under Dermatology in Hawaii (2024, 42 clinicians with data). Median for this group: 1,514. Middle half: 876 to 3,180.
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 2,029 in 2020 to 2,514 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
550 S Beretania St
Suite 603
Honolulu, HI 968132414
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Greg K Sakamoto Md Llc. 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
University Of Hawaii John A. Burns School Of Medicine
2005
What Public CMS Data Show
Dermatology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
633 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 $158,925 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 $105,870 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.
30-day fills
2,063 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$1,245,142 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $16,562.37 across 24 records.
By nature of payment (3 largest of 4)
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program: $15,900.00 across 5 records.
- Food and Beverage: $287.68 across 14 records.
- Travel and Lodging: $274.73 across 4 records.
Reporting-company totals (3 largest of 8)
- Galderma Laboratories, L.P.: $16,219.48 across 12 records.
- SUN PHARMACEUTICAL INDUSTRIES INC.: $134.94 across 2 records.
- Novartis Pharmaceuticals Corporation: $81.29 across 4 records.
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 2025 (published June 30, 2026).
Years since graduation
21 years (graduated 2005)
CMS Doctors and Clinicians data list 2005 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?”
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Sakamoto 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. Sakamoto 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
More Medicare Part B services than 70% of clinicians listed under Dermatology in Honolulu, HI (2024, 23 clinicians with data). Median for this group: 1,431. Middle half: 951 to 2,656.
More Medicare Part B services than 60% of clinicians listed under Dermatology in Hawaii (2024, 42 clinicians with data). Median for this group: 1,514. Middle half: 876 to 3,180.
Medicare-allowed amount
A higher Medicare-allowed amount than 65% of clinicians listed under Dermatology in Honolulu, HI (2024, 23 clinicians with data). Median for this group: $98,092. Middle half: $71,042 to $226,040.
A higher Medicare-allowed amount than 60% of clinicians listed under Dermatology in Hawaii (2024, 42 clinicians with data). Median for this group: $102,345. Middle half: $61,276 to $255,148.
Paid by Medicare
A higher Medicare payment amount than 65% of clinicians listed under Dermatology in Honolulu, HI (2024, 23 clinicians with data). Median for this group: $67,127. Middle half: $46,337 to $153,432.
A higher Medicare payment amount than 60% of clinicians listed under Dermatology in Hawaii (2024, 42 clinicians with data). Median for this group: $71,184. Middle half: $40,128 to $183,827.
Medicare Part D prescriptions
More Part D prescriptions than 85% of clinicians listed under Dermatology in Honolulu, HI (2024, 30 clinicians with data). Median for this group: 641. Middle half: 391 to 1,138.
More Part D prescriptions than 85% of clinicians listed under Dermatology in Hawaii (2024, 49 clinicians with data). Median for this group: 705. Middle half: 375 to 1,119.
Part D drug cost
A higher Part D drug cost than 95% of clinicians listed under Dermatology in Honolulu, HI (2024, 30 clinicians with data). Median for this group: $233,371. Middle half: $110,826 to $574,073.
A higher Part D drug cost than 95% of clinicians listed under Dermatology in Hawaii (2024, 49 clinicians with data). Median for this group: $253,293. Middle half: $94,948 to $539,944.
39 active clinicians are listed under Dermatology with a practice address in Honolulu, HI (68 in Hawaii).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Honolulu
28.2% of these 39 clinicians have the CMS telehealth indicator.
74.4% of these 39 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 increased 24% from 2,029 in 2020 to 2,514 in 2024.
- 2020: 2,029
- 2021: 2,211
- 2022: 2,405
- 2023: 2,650
- 2024: 2,514
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Medicare-allowed amount
Medicare-allowed amount increased 27% from $125,392 in 2020 to $158,925 in 2024.
- 2020: $125,392
- 2021: $149,095
- 2022: $164,927
- 2023: $174,683
- 2024: $158,925
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Paid by Medicare
Paid by Medicare increased 26% from $84,229 in 2020 to $105,870 in 2024.
- 2020: $84,229
- 2021: $101,012
- 2022: $112,601
- 2023: $120,877
- 2024: $105,870
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 30% from 1,200 in 2020 to 1,563 in 2024.
- 2020: 1,200
- 2021: 1,425
- 2022: 1,419
- 2023: 1,364
- 2024: 1,563
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30-day fills
30-day fills increased 39% from 1,488 in 2020 to 2,063 in 2024.
- 2020: 1,488
- 2021: 1,756
- 2022: 1,772
- 2023: 1,750
- 2024: 2,063
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Part D drug cost
Part D drug cost increased 235% from $371,375 in 2020 to $1,245,142 in 2024.
- 2020: $371,375
- 2021: $689,386
- 2022: $699,746
- 2023: $1,180,628
- 2024: $1,245,142
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Industry payments (Open Payments)
Industry payments (Open Payments) increased 1202% from $1,272.20 in 2021 to $16,562.37 in 2025.
- 2021: $1,272.20
- 2022: $399.49
- 2023: $945.97
- 2024: $506.16
- 2025: $16,562.37
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), 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 2025 (payments made January 1 – December 31, 2025): 24 records totaling $16,562.37.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Galderma Laboratories, L.P. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
|
NEMLUVIO | General | $5,400.00 |
| Galderma Laboratories, L.P. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
|
NEMLUVIO | General | $3,600.00 |
| Galderma Laboratories, L.P. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
|
NEMLUVIO | General | $3,600.00 |
| Galderma Laboratories, L.P. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
|
NEMLUVIO | General | $2,700.00 |
| Galderma Laboratories, L.P. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
|
NEMLUVIO | General | $600.00 |
| Galderma Laboratories, L.P. |
Travel and Lodging
In-kind items and services
|
NEMLUVIO | General | $138.99 |
| SUN PHARMACEUTICAL INDUSTRIES INC. |
Education
In-kind items and services
|
— | General | $99.96 |
| Galderma Laboratories, L.P. |
Travel and Lodging
In-kind items and services
|
NEMLUVIO | General | $62.74 |
| Galderma Laboratories, L.P. |
Travel and Lodging
In-kind items and services
|
NEMLUVIO | General | $46.00 |
| SUN PHARMACEUTICAL INDUSTRIES INC. |
Food and Beverage
In-kind items and services
|
ILUMYA | General | $34.98 |
| LEO Pharma Inc. |
Food and Beverage
In-kind items and services
|
ADBRY | General | $28.35 |
| Galderma Laboratories, L.P. |
Travel and Lodging
In-kind items and services
|
NEMLUVIO | General | $27.00 |
| Organon LLC |
Food and Beverage
In-kind items and services
|
VTAMA | General | $26.00 |
| Bristol Myers Squibb Company |
Food and Beverage
Cash or cash equivalent
|
Sotyktu | General | $24.06 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
CIBINQO | General | $22.33 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
|
COSENTYX | General | $21.45 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
|
COSENTYX | General | $21.33 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
|
COSENTYX | General | $19.39 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
|
COSENTYX | General | $19.12 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $16.95 |
| Galderma Laboratories, L.P. |
Food and Beverage
In-kind items and services
|
NEMLUVIO | General | $15.79 |
| Galderma Laboratories, L.P. |
Food and Beverage
In-kind items and services
|
NEMLUVIO | General | $15.67 |
| Galderma Laboratories, L.P. |
Food and Beverage
In-kind items and services
|
NEMLUVIO | General | $13.29 |
| Organon LLC |
Food and Beverage
In-kind items and services
|
— | General | $8.97 |
Source: CMS Open Payments, program year 2025, 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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17003
Destruction of precancer skin growth, 2-14 growths
|
857 | 130 | $11.15 | $7.19 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
691 | 457 | $143.47 | $92.63 |
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17000
Destruction of precancer skin growth, 1 growth
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227 | 168 | $110.35 | $61.19 |
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17110
Destruction of skin growth, 1-14 growths
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187 | 162 | $188.83 | $118.56 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
87 | 60 | $201.43 | $128.21 |
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17004
Destruction of precancer skin growth, 15 or more growths
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80 | 54 | $273.38 | $179.78 |
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99212
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
|
80 | 71 | $90.17 | $55.92 |
|
96372
Injection of drug or substance under skin or into muscle
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71 | 22 | $38.38 | $13.88 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
|
68 | 68 | $174.96 | $114.65 |
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11102
Biopsy of related skin growth, first growth
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52 | 49 | $165.66 | $103.80 |
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J3301
Injection, triamcinolone acetonide, not otherwise specified, 10 mg
|
44 | 16 | $2.09 | $1.03 |
|
99202
New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more
|
25 | 25 | $114.63 | $72.78 |
|
11301
Shaving of skin growth of body, arms, or legs, 0.6-1.0 cm
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22 | 18 | $199.33 | $117.17 |
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11900
Injection into skin growth, 1-7 growths
|
12 | 11 | $93.49 | $53.93 |
|
12032
Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm
|
11 | 11 | $494.91 | $310.52 |
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.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Halobetasol Propionate | Halobetasol Propionate | 197 | 6,298 | $9,283.44 | 113 |
| Clobetasol Propionate | Clobetasol Propionate | 176 | 5,517 | $9,993.88 | 91 |
| Mupirocin | Mupirocin | 139 | 3,122 | $1,199.15 | 72 |
| Dupixent Pen | Dupilumab | 112 | 3,136 | $436,404.11 | 12 |
| Mometasone Furoate | Mometasone Furoate | 83 | 2,786 | $1,710.94 | 53 |
| Ketoconazole | Ketoconazole | 82 | 3,095 | $1,150.88 | 45 |
| Betamethasone Dipropionate | Betamethasone Dipropionate | 79 | 2,490 | $4,738.19 | 47 |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 77 | 2,886 | $1,222.66 | 54 |
| Finasteride | Finasteride | 55 | 5,000 | $1,109.67 | 16 |
| Doxycycline Hyclate | Doxycycline Hyclate | 37 | 1,649 | $852.01 | 14 |
| Prednisone | Prednisone | 36 | 623 | $86.59 | 27 |
| Valacyclovir | Valacyclovir Hcl | 33 | 296 | $929.83 | 18 |
| Opzelura | Ruxolitinib Phosphate | 33 | 1,080 | $70,196.46 | 16 |
| Minoxidil | Minoxidil | 26 | 2,340 | $586.54 | — |
| Tacrolimus | Tacrolimus | 26 | 780 | $4,332.90 | 16 |
| Tretinoin | Tretinoin | 25 | 1,190 | $1,283.97 | 12 |
| Ciclopirox | Ciclopirox | 24 | 705 | $917.72 | 13 |
| Metronidazole | Metronidazole | 23 | 805 | $3,221.63 | 12 |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 23 | 995 | $371.89 | — |
| Humira(Cf) Pen | Adalimumab | 23 | 644 | $155,710.23 | — |
| Methotrexate | Methotrexate Sodium | 19 | 1,358 | $360.06 | — |
| Clindamycin Phosphate | Clindamycin Phosphate | 19 | 570 | $653.17 | 11 |
| Dutasteride | Dutasteride | 19 | 1,730 | $1,156.84 | — |
| Clindamycin Hcl | Clindamycin Hcl | 18 | 133 | $146.32 | 17 |
| Ammonium Lactate | Ammonium Lactate | 18 | 540 | $297.22 | 12 |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207N00000X
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - DERMATOLOGY
I20100714000193
HI
6204982523
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
Greg K Sakamoto Md Llc
550 S Beretania St, Honolulu, HI 968132496
Phone: 8084477454
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant
Physician Assistant (Certified)
Career & Practice History
NPI enumerated February 26, 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 Dermatology Specialists in Honolulu
- Tagai Musaev
- Dr. Douglas Chun, MD
- Dr. Theresa Devere, MD
- Dr. Deborah Yang, MD
- Dr. Miki Garcia, MD
- Dr. Jay Grekin, MD
Mailing Address
550 S Beretania St, Suite 603
Honolulu, HI 968132414
Phone: 8084477454