Donald Warren Inadomi, M.D.
Nephrology Physician · Torrance, CA
Donald Warren Inadomi, M.D. is a nephrology physician with a practice address in Torrance, California, and NPI 1154429314, issued on Sep 20, 2006. Check the license (California G42789, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Donald Warren Inadomi
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- G42789 CA
Self-reported in NPPES; status is on the state search - Practice location
- 20911 Earl St, Torrance, CA 90503
- Phone
- (310) 542-7997
- Enumerated
- Sep 20, 2006
- Record last updated
- Oct 2, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 00G427891 CA
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 20911 Earl St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Khaja Ahmed, M.D.Nephrology Physician1033137633
- John Annable, M.D.Family Medicine Physician1790790475
- Bahman Bandari, MDInternal Medicine Physician1083615298
- Kathleen Beaufait, L.AC.Acupuncturist1841566189
- Jisue Coye, MDPediatrics Physician1659402071
- Steven Davis, M.D.Otolaryngology Physician1063435675
Verify Donald Warren Inadomi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G42789Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% more Medicare Part D claims than the average nephrology physician in 2024
1,593 Medicare Part D claims for 228 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium216 claims
- Amlodipine Besylate114 claims
- Rosuvastatin Calcium99 claims
- Simvastatin85 claims
- Irbesartan57 claims
- Irbesartan-Hydrochlorothiazide56 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $520.69
20 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Donald Warren Inadomi among 1,468 nephrology physician records in California
Donald Warren Inadomi, M.D. is one of 1,468 nephrology physician records with a practice address in California. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 48% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileNo · 77% of these records are
- Record last updated2007 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in California
There are 1,468 nephrology physician records in California.
All 1,468 in California → Every provider in Torrance → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Khaja Ahmed, M.D.Torrance, CA 905031033137633
- Steven Sawelson, MDTorrance, CA 905031740354034
- Shamila Senanayake, MDTorrance, CA 905031477660660
- Sharon Adler, M.D.Torrance, CA 905021467431122
- Lilly Barba, M.D.Torrance, CA 905021407835978
- Akshay Bommireddi, MDTorrance, CA 905021861091316
- Zar Chan, M.DTorrance, CA 905021417243890
- Duke Chang, MDTorrance, CA 905021235290669
Common questions
What is Donald Warren Inadomi, M.D.'s NPI number?
Donald Warren Inadomi, M.D.'s National Provider Identifier (NPI) is 1154429314, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Donald Warren Inadomi, M.D. located?
The NPPES record lists a practice address at 20911 Earl St, Torrance, CA, 90503. Phone: (310) 542-7997. Providers update this record themselves, so call before visiting.
How can I verify Donald Warren Inadomi, M.D.'s license?
NPPES lists California license number G42789, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Donald Warren Inadomi, M.D. prescribe under Medicare Part D?
In 2024, Donald Warren Inadomi, M.D. had 1,593 Medicare Part D claims for 228 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.