2026 NPPES data Adult Medicine Physician NPI 1982969838 M.D.
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BRIAN KAWASAKI, M.D.

Adult Medicine Physician in LONG BEACH, California. 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
2K
Medicare Part D claims · 99 beneficiaries · Adult Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$39.26
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

BRIAN KAWASAKI, M.D. filed 1,524 Medicare Part D claims in 2023 as a Adult Medicine Physician in LONG BEACH, California, prescribing 88% generic.

2K
Part D claims, 2023
88%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

BRIAN KAWASAKI, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

1,524 Top 19% higher than 81% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). This entry sits in this band. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

BRIAN KAWASAKI, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about BRIAN KAWASAKI, M.D.?

Quality data not reported

NPI registry status

Active

Issued 07/06/2012

NPI 1982969838

Primary specialty

Adult Medicine Physician

Niche

2,481 US NPIs in this specialty

Medicare Part D claims

1,524 46% vs specialty avg

2023 prescription claims

Specialty avg: 2,807

Specialty distribution in California

How Adult Medicine Physician compares to other specialties among California providers

California providers

Adult Medicine Physician share within California

1. Adult Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Adult Medicine Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Adult Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Adult Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Adult Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Adult Medicine Physician) — 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).

BRIAN KAWASAKI, M.D. appears in the CMS NPPES registry as a Adult Medicine Physician provider holding M.D. credentials at 1333 CHESTNUT AVE, LONG BEACH, CA, 90813, with a listed phone of (562) 753-2300. NPI 1982969838 was issued on 07/06/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KAWASAKI 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 1,524 prescription claims written by this provider, covering 99 Medicare beneficiaries and totaling roughly $122K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 1.8%. 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.

Adult Medicine Physician is a narrow specialty nationwide, with 2,481 enrolled providers across 52 states and an average of 2,807 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

1333 CHESTNUT AVE
LONG BEACH, CA 90813

Provider Details

NPI 1982969838
Specialty Adult Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 07/06/2012

Hospital and facility affiliations

Facilities where BRIAN KAWASAKI, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

COUNTY OF LOS ANGELES
LONG BEACH, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 BRIAN KAWASAKI, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$39

Largest payer

Indivior 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.

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to BRIAN KAWASAKI, M.D.. To verify BRIAN KAWASAKI, M.D.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

BRIAN KAWASAKI, M.D. — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 1,524 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

1,524
Total Claims
$122K
Total Drug Cost
99
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,992
Total Day Supply
87,526
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$83K
Generic Drug Cost
$38K
Opioid Claims
28 (1.8% rate)

Patient Demographics

Average Patient Age
67.1 years
Avg HCC Risk Score
1.25
Gender Split
53% female / 47% male
Age Distribution
<65: 19, 65-74: 69, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What BRIAN KAWASAKI, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Amlodipine Besylate
93
Atorvastatin Calcium
93
Omeprazole
64
Metformin Hcl
53
Losartan Potassium
51
Gabapentin
45
Simvastatin
41
Triamterene-Hydrochlorothiazid
Triamterene/Hydrochlorothiazid
40
Diclofenac Sodium
39
Lisinopril
37

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

Adult Medicine Physician Overview

How BRIAN KAWASAKI, M.D. fits within the Adult Medicine Physician landscape nationally.

2,481
Adult Medicine Physician Providers in US
52
States with Adult Medicine Physician
2,807
Avg Claims per Provider

BRIAN KAWASAKI, M.D.'s 1,524 claims are below the specialty average of 2,807.

Nearby Adult Medicine Physician Providers in California

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

Compare Adult Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is BRIAN KAWASAKI, M.D.'s specialty?
BRIAN KAWASAKI, M.D. specializes in Adult Medicine Physician and practices in LONG BEACH, California. Credentials: M.D..
How much does BRIAN KAWASAKI, M.D. prescribe under Medicare Part D?
In 2023, BRIAN KAWASAKI, M.D. wrote 1,524 Medicare Part D claims totaling $122K in drug costs for 99 beneficiaries.
Where is BRIAN KAWASAKI, M.D. located?
BRIAN KAWASAKI, M.D. is located at 1333 CHESTNUT AVE, LONG BEACH, CA, 90813. Phone: (562) 753-2300.
What is BRIAN KAWASAKI, M.D.'s NPI number?
BRIAN KAWASAKI, M.D.'s National Provider Identifier (NPI) is 1982969838, issued on 07/06/2012.
Does BRIAN KAWASAKI, M.D. prescribe more brand-name or generic drugs?
BRIAN KAWASAKI, M.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $83K in brand drug costs.
Does BRIAN KAWASAKI, M.D. prescribe opioids?
Yes, BRIAN KAWASAKI, M.D. had 28 opioid claims in 2023 with an opioid prescribing rate of 1.8%.
How many Adult Medicine Physician providers are there in the US?
There are 2,481 Adult Medicine Physician providers across 52 states in the US. The average Adult Medicine Physician provider writes 2,807 Medicare Part D claims per year.
What drugs does BRIAN KAWASAKI, M.D. prescribe most often?
Based on 2023 Medicare Part D data, BRIAN KAWASAKI, M.D.'s most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BRIAN KAWASAKI, M.D. accept Medicare?
BRIAN KAWASAKI, M.D. appears in CMS Medicare data with 1,524 Part D claims and 99 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BRIAN KAWASAKI, M.D.'s credentials?
BRIAN KAWASAKI, M.D.'s NPI is 1982969838 with credentials M.D.. 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