2026 NPPES data Nephrology Physician NPI 1154429314 M.D.
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DONALD INADOMI, M.D.

Nephrology Physician in TORRANCE, 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
3K
Medicare Part D claims · 258 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$520.69
20 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: DONALD INADOMI, M.D. is a Nephrology Physician ([object Object]) practicing in TORRANCE, California with a Medicare Part D prescribing footprint of 3K claims across 258 beneficiaries — 12% brand-name prescribing . Industry payments of $520.69 across 20 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: DONALD INADOMI, M.D. filed 2,772 Medicare Part D claims in 2023 across TORRANCE, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

DONALD INADOMI, 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).

DONALD INADOMI, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 09/20/2006

NPI 1154429314

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

2,772 91% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

Specialty distribution in California

How Nephrology Physician compares to other specialties among California providers

California providers

Nephrology Physician share within California

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

Specialty board-certification context

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

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

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

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

DONALD INADOMI, M.D. is a Nephrology Physician provider practicing in TORRANCE, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1154429314. 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.

DONALD INADOMI, M.D. appears in the CMS NPPES registry as a Nephrology Physician provider holding M.D. credentials at 20911 EARL ST, TORRANCE, CA, 90503, with a listed phone of (310) 542-7997. NPI 1154429314 was issued on 09/20/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what INADOMI 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 2,772 prescription claims written by this provider, covering 258 Medicare beneficiaries and totaling roughly $251K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 0.9%. 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.

Nephrology Physician is a mid-sized specialty nationwide, with 10,534 enrolled providers across 55 states and an average of 1,454 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

20911 EARL ST
TORRANCE, CA 90503

Provider Details

NPI 1154429314
Specialty Nephrology Physician
Credentials M.D.
Gender Male
NPI Issued 09/20/2006

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 DONALD INADOMI, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$521

Largest payer

Boehringer Ingelheim Pharmaceuticals, 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 DONALD INADOMI, M.D.. To verify DONALD INADOMI, 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

DONALD INADOMI, M.D. — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 2,772 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.

2,772
Total Claims
$251K
Total Drug Cost
258
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,715
Total Day Supply
198,652
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$196K
Generic Drug Cost
$54K
Opioid Claims
25 (0.9% rate)
Antibiotic Claims
30

Patient Demographics

Average Patient Age
79.3 years
Avg HCC Risk Score
0.77
Gender Split
50% female / 50% male
Age Distribution
<65: 0, 65-74: 85, 75-84: 98, 85+: 75

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
339
Amlodipine Besylate
181
Simvastatin
153
Rosuvastatin Calcium
131
Levothyroxine Sodium
104
Irbesartan
89
Irbesartan-Hydrochlorothiazide
Irbesartan/Hydrochlorothiazide
70
Furosemide
66
Allopurinol
63
Olmesartan Medoxomil
59

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

Nephrology Physician Overview

How DONALD INADOMI, M.D. fits within the Nephrology Physician landscape nationally.

10,534
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider

DONALD INADOMI, M.D.'s 2,772 claims are above the specialty average of 1,454.

Nearby Nephrology Physician Providers in California

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

Compare Nephrology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is DONALD INADOMI, M.D.'s specialty?
DONALD INADOMI, M.D. specializes in Nephrology Physician and practices in TORRANCE, California. Credentials: M.D..
How much does DONALD INADOMI, M.D. prescribe under Medicare Part D?
In 2023, DONALD INADOMI, M.D. wrote 2,772 Medicare Part D claims totaling $251K in drug costs for 258 beneficiaries.
Where is DONALD INADOMI, M.D. located?
DONALD INADOMI, M.D. is located at 20911 EARL ST, TORRANCE, CA, 90503. Phone: (310) 542-7997.
What is DONALD INADOMI, M.D.'s NPI number?
DONALD INADOMI, M.D.'s National Provider Identifier (NPI) is 1154429314, issued on 09/20/2006.
Does DONALD INADOMI, M.D. prescribe more brand-name or generic drugs?
DONALD INADOMI, M.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $196K in brand drug costs.
Does DONALD INADOMI, M.D. prescribe opioids?
Yes, DONALD INADOMI, M.D. had 25 opioid claims in 2023 with an opioid prescribing rate of 0.9%.
How many Nephrology Physician providers are there in the US?
There are 10,534 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does DONALD INADOMI, M.D. prescribe most often?
Based on 2023 Medicare Part D data, DONALD INADOMI, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Simvastatin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DONALD INADOMI, M.D. accept Medicare?
DONALD INADOMI, M.D. appears in CMS Medicare data with 2,772 Part D claims and 258 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DONALD INADOMI, M.D.'s credentials?
DONALD INADOMI, M.D.'s NPI is 1154429314 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