2026 NPPES data Adult Medicine Physician NPI 1124130901 M.D.
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YASUKO KIDOKORO, M.D.

Adult Medicine Physician in SAN DIEGO, 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
1K
Medicare Part D claims · 106 beneficiaries · Adult Medicine Physician avg: 3K
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

YASUKO KIDOKORO, M.D. filed 1,107 Medicare Part D claims in 2023 as a Adult Medicine Physician in SAN DIEGO, California, prescribing 92% generic.

1K
Part D claims, 2023
92%
generic prescribing

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.

YASUKO KIDOKORO, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

1,107 Top 23% higher than 77% 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%). This entry sits in this band. 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

Board-eligible specialty (heuristic — not verified)

YASUKO KIDOKORO, M.D. 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).

What does the federal data show about YASUKO KIDOKORO, M.D.?

Quality data not reported

NPI registry status

Active

Issued 08/31/2006

NPI 1124130901

Primary specialty

Adult Medicine Physician

Niche

2,481 US NPIs in this specialty

Medicare Part D claims

1,107 61% 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).

YASUKO KIDOKORO, M.D. appears in the CMS NPPES registry as a Adult Medicine Physician provider holding M.D. credentials at 5222 BALBOA AVE STE 31, SAN DIEGO, CA, 92117, with a listed phone of (858) 277-9669. NPI 1124130901 was issued on 08/31/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KIDOKORO 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 1,107 prescription claims written by this provider, covering 106 Medicare beneficiaries and totaling roughly $80K in drug spend, split 8% brand-name and 92% generic by claim count. 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

5222 BALBOA AVE STE 31
SAN DIEGO, CA 92117

Provider Details

NPI 1124130901
Specialty Adult Medicine Physician
Credentials M.D.
Gender Female
NPI Issued 08/31/2006

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 YASUKO KIDOKORO, M.D.. To verify YASUKO KIDOKORO, 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 · Generic-heavy

YASUKO KIDOKORO, M.D. — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 1,107 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.

1,107
Total Claims
$80K
Total Drug Cost
106
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,877
Total Day Supply
85,627
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$56K
Generic Drug Cost
$24K
Antibiotic Claims
14

Patient Demographics

Average Patient Age
74.1 years
Avg HCC Risk Score
0.72
Gender Split
65% female / 35% male

Top Prescribed Drugs (Medicare Part D)

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

What YASUKO KIDOKORO, 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
Atorvastatin Calcium
111
Amlodipine Besylate
75
Losartan Potassium
71
Metformin Hcl
66
Simvastatin
53
Levothyroxine Sodium
48
Alendronate Sodium
35
Chlorthalidone
31
Atenolol
28
Allopurinol
25

* 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 YASUKO KIDOKORO, 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

YASUKO KIDOKORO, M.D.'s 1,107 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 KIDOKORO.

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

Frequently Asked Questions

What is YASUKO KIDOKORO, M.D.'s specialty?
YASUKO KIDOKORO, M.D. specializes in Adult Medicine Physician and practices in SAN DIEGO, California. Credentials: M.D..
How much does YASUKO KIDOKORO, M.D. prescribe under Medicare Part D?
In 2023, YASUKO KIDOKORO, M.D. wrote 1,107 Medicare Part D claims totaling $80K in drug costs for 106 beneficiaries.
Where is YASUKO KIDOKORO, M.D. located?
YASUKO KIDOKORO, M.D. is located at 5222 BALBOA AVE STE 31, SAN DIEGO, CA, 92117. Phone: (858) 277-9669.
What is YASUKO KIDOKORO, M.D.'s NPI number?
YASUKO KIDOKORO, M.D.'s National Provider Identifier (NPI) is 1124130901, issued on 08/31/2006.
Does YASUKO KIDOKORO, M.D. prescribe more brand-name or generic drugs?
YASUKO KIDOKORO, M.D.'s prescribing is 8% brand-name and 92% generic drugs by claim count, with $56K in brand drug costs.
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 YASUKO KIDOKORO, M.D. prescribe most often?
Based on 2023 Medicare Part D data, YASUKO KIDOKORO, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does YASUKO KIDOKORO, M.D. accept Medicare?
YASUKO KIDOKORO, M.D. appears in CMS Medicare data with 1,107 Part D claims and 106 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify YASUKO KIDOKORO, M.D.'s credentials?
YASUKO KIDOKORO, M.D.'s NPI is 1124130901 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