2026 NPPES data Oral & Maxillofacial Surgery (D.M.D.) NPI 1871957845 D.D.S.
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THOMAS YAMAMOTO, D.D.S.

Oral & Maxillofacial Surgery (D.M.D.) in HONOLULU, Hawaii. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
232
Medicare Part D claims · 115 beneficiaries · Oral & Maxillofacial Surgery (D.M.D.) avg: 324
Industry payments
$156.07
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: THOMAS YAMAMOTO, D.D.S. is a Oral & Maxillofacial Surgery (D.M.D.) ([object Object]) practicing in HONOLULU, Hawaii with a Medicare Part D prescribing footprint of 232 claims across 115 beneficiaries . Industry payments of $156.07 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: THOMAS YAMAMOTO, D.D.S. filed 232 Medicare Part D claims in 2023 across HONOLULU, Hawaii. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

THOMAS YAMAMOTO, D.D.S. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

THOMAS YAMAMOTO, D.D.S. at a glance

Quality data not reported

NPI registry status

Active

Issued 04/06/2016

NPI 1871957845

Primary specialty

Oral & Maxillofacial Surgery (D.M.D.)

Niche

1,112 US NPIs in this specialty

Medicare Part D claims

232 28% vs specialty avg

2023 prescription claims

Specialty avg: 324

Specialty distribution in Hawaii

How Oral & Maxillofacial Surgery (D.M.D.) compares to other specialties among Hawaii providers

Hawaii providers

Oral & Maxillofacial Surgery (D.M.D.) share within Hawaii

1. Oral & Maxillofacial Surgery (D.M.D.)42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Oral & Maxillofacial Surgery (D.M.D.) share within Hawaii

Specialty board-certification context

Estimated specialty board-certified rate — Oral & Maxillofacial Surgery (D.M.D.) (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Oral & Maxillofacial Surgery (D.M.D.) ABMS/AOA estimate

Est. board-certified rate (Oral & Maxillofacial Surgery (D.M.D.)) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Oral & Maxillofacial Surgery (D.M.D.)) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

THOMAS YAMAMOTO, D.D.S. is a Oral & Maxillofacial Surgery (D.M.D.) provider practicing in HONOLULU, Hawaii, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.D.S.. NPI: 1871957845. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

THOMAS YAMAMOTO, D.D.S. appears in the CMS NPPES registry as a Oral & Maxillofacial Surgery (D.M.D.) provider holding D.D.S. credentials at 1441 KAPIOLANI BLVD STE 1720, HONOLULU, HI, 96814, with a listed phone of (808) 949-5665. NPI 1871957845 was issued on 04/06/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what YAMAMOTO most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 232 prescription claims written by this provider, covering 115 Medicare beneficiaries and totaling roughly $2K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Oral & Maxillofacial Surgery (D.M.D.) is a narrow specialty nationwide, with 1,112 enrolled providers across 52 states and an average of 324 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1441 KAPIOLANI BLVD STE 1720
HONOLULU, HI 96814

Provider Details

NPI 1871957845
Specialty Oral & Maxillofacial Surgery (D.M.D.)
Credentials D.D.S.
Gender Male
NPI Issued 04/06/2016

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for THOMAS YAMAMOTO, D.D.S.. Source: openpaymentsdata.cms.gov.

Total received

$156

Largest payer

ZIMVIE INC.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

232
Total Claims
$2K
Total Drug Cost
115
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
232
Total Day Supply
2,587
Brand Drug Cost
$0
Generic Drug Cost
$2K
Antibiotic Claims
108

Patient Demographics

Average Patient Age
75.7 years
Avg HCC Risk Score
1.00
Gender Split
63% female / 37% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Chlorhexidine Gluconate
94
Amoxicillin
85
Azithromycin
16
Ibuprofen
15

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Oral & Maxillofacial Surgery (D.M.D.) Overview

How THOMAS YAMAMOTO, D.D.S. fits within the Oral & Maxillofacial Surgery (D.M.D.) landscape nationally.

1,112
Oral & Maxillofacial Surgery (D.M.D.) Providers in US
52
States with Oral & Maxillofacial Surgery (D.M.D.)
324
Avg Claims per Provider

THOMAS YAMAMOTO, D.D.S.'s 232 claims are below the specialty average of 324.

Nearby Oral & Maxillofacial Surgery (D.M.D.) Providers in Hawaii

Other clinicians with the same primary specialty enrolled in Hawaii, drawn from the same CMS NPPES roster as YAMAMOTO.

Compare Oral & Maxillofacial Surgery (D.M.D.) nationally: see state-by-state distribution →

Frequently Asked Questions

What is THOMAS YAMAMOTO, D.D.S.'s specialty?
THOMAS YAMAMOTO, D.D.S. specializes in Oral & Maxillofacial Surgery (D.M.D.) and practices in HONOLULU, Hawaii. Credentials: D.D.S..
How much does THOMAS YAMAMOTO, D.D.S. prescribe under Medicare Part D?
In 2023, THOMAS YAMAMOTO, D.D.S. wrote 232 Medicare Part D claims totaling $2K in drug costs for 115 beneficiaries.
Where is THOMAS YAMAMOTO, D.D.S. located?
THOMAS YAMAMOTO, D.D.S. is located at 1441 KAPIOLANI BLVD STE 1720, HONOLULU, HI, 96814. Phone: (808) 949-5665.
What is THOMAS YAMAMOTO, D.D.S.'s NPI number?
THOMAS YAMAMOTO, D.D.S.'s National Provider Identifier (NPI) is 1871957845, issued on 04/06/2016.
How many Oral & Maxillofacial Surgery (D.M.D.) providers are there in the US?
There are 1,112 Oral & Maxillofacial Surgery (D.M.D.) providers across 52 states in the US. The average Oral & Maxillofacial Surgery (D.M.D.) provider writes 324 Medicare Part D claims per year.
What drugs does THOMAS YAMAMOTO, D.D.S. prescribe most often?
Based on 2023 Medicare Part D data, THOMAS YAMAMOTO, D.D.S.'s most frequently prescribed drugs include Chlorhexidine Gluconate, Amoxicillin, Azithromycin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does THOMAS YAMAMOTO, D.D.S. accept Medicare?
THOMAS YAMAMOTO, D.D.S. appears in CMS Medicare data with 232 Part D claims and 115 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THOMAS YAMAMOTO, D.D.S.'s credentials?
THOMAS YAMAMOTO, D.D.S.'s NPI is 1871957845 with credentials D.D.S.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology