2026 NPPES data Endodontics NPI 1124359666 DDS
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TOTA SHIMIZU, DDS

Endodontics in LOS ANGELES, 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
67
Medicare Part D claims · 43 beneficiaries · Endodontics avg: 116

What the federal data shows

TOTA SHIMIZU, DDS filed 67 Medicare Part D claims in 2023 as a Endodontics in LOS ANGELES, California.

67
Part D claims, 2023

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.

TOTA SHIMIZU, DDS's Medicare Part D volume vs every U.S. prescriber

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

67 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 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

What does the federal data show about TOTA SHIMIZU, DDS?

Quality data not reported

NPI registry status

Active

Issued 01/22/2010

NPI 1124359666

Primary specialty

Endodontics

Mid-sized

5,856 US NPIs in this specialty

Medicare Part D claims

67 42% vs specialty avg

2023 prescription claims

Specialty avg: 116

Specialty distribution in California

How Endodontics compares to other specialties among California providers

California providers

Endodontics share within California

1. Endodontics42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Endodontics share within California

Specialty board-certification context

Estimated specialty board-certified rate — Endodontics (ABMS / AOA reference)

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

Est. board-certified rate (Endodontics) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Endodontics) — 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).

TOTA SHIMIZU, DDS appears in the CMS NPPES registry as a Endodontics provider holding DDS credentials at 925 W 34TH ST STE 151, LOS ANGELES, CA, 90089, with a listed phone of (213) 740-7405. NPI 1124359666 was issued on 01/22/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SHIMIZU 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 67 prescription claims written by this provider, covering 43 Medicare beneficiaries and totaling roughly $499 in drug spend, with an opioid prescribing rate of 43.3%. 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.

Endodontics is a mid-sized specialty nationwide, with 5,856 enrolled providers across 53 states and an average of 116 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

925 W 34TH ST STE 151
LOS ANGELES, CA 90089

Provider Details

NPI 1124359666
Specialty Endodontics
Credentials DDS
Gender Male
NPI Issued 01/22/2010

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 TOTA SHIMIZU, DDS. To verify TOTA SHIMIZU, DDS'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.

Medicare Part D Prescribing Data

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

67
Total Claims
$499
Total Drug Cost
43
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
67
Total Day Supply
424
Brand Drug Cost
$0
Generic Drug Cost
$499
Opioid Claims
29 (43.3% rate)
Antibiotic Claims
22

Patient Demographics

Average Patient Age
73.1 years
Avg HCC Risk Score
1.24
Gender Split
51% female / 49% male

Top Prescribed Drugs (Medicare Part D)

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

What TOTA SHIMIZU, DDS 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
Acetaminophen-Codeine
Acetaminophen With Codeine
24
Methylprednisolone
14
Amoxicillin
13

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

Endodontics Overview

How TOTA SHIMIZU, DDS fits within the Endodontics landscape nationally.

5,856
Endodontics Providers in US
53
States with Endodontics
116
Avg Claims per Provider

TOTA SHIMIZU, DDS's 67 claims are below the specialty average of 116.

Nearby Endodontics Providers in California

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

Compare Endodontics nationally: see state-by-state distribution →

Frequently Asked Questions

What is TOTA SHIMIZU, DDS's specialty?
TOTA SHIMIZU, DDS specializes in Endodontics and practices in LOS ANGELES, California. Credentials: DDS.
How much does TOTA SHIMIZU, DDS prescribe under Medicare Part D?
In 2023, TOTA SHIMIZU, DDS wrote 67 Medicare Part D claims totaling $499 in drug costs for 43 beneficiaries.
Where is TOTA SHIMIZU, DDS located?
TOTA SHIMIZU, DDS is located at 925 W 34TH ST STE 151, LOS ANGELES, CA, 90089. Phone: (213) 740-7405.
What is TOTA SHIMIZU, DDS's NPI number?
TOTA SHIMIZU, DDS's National Provider Identifier (NPI) is 1124359666, issued on 01/22/2010.
Does TOTA SHIMIZU, DDS prescribe opioids?
Yes, TOTA SHIMIZU, DDS had 29 opioid claims in 2023 with an opioid prescribing rate of 43.3%.
How many Endodontics providers are there in the US?
There are 5,856 Endodontics providers across 53 states in the US. The average Endodontics provider writes 116 Medicare Part D claims per year.
What drugs does TOTA SHIMIZU, DDS prescribe most often?
Based on 2023 Medicare Part D data, TOTA SHIMIZU, DDS's most frequently prescribed drugs include Acetaminophen-Codeine, Methylprednisolone, Amoxicillin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TOTA SHIMIZU, DDS accept Medicare?
TOTA SHIMIZU, DDS appears in CMS Medicare data with 67 Part D claims and 43 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TOTA SHIMIZU, DDS's credentials?
TOTA SHIMIZU, DDS's NPI is 1124359666 with credentials DDS. 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