Luis I. Kobashi, M.D.
Urology Physician · Orange, CA
Luis I. Kobashi, M.D. is a urology physician with a practice address in Orange, California, and NPI 1710963095, issued on Dec 19, 2005. Check the license (California A21727, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Luis I. Kobashi
- Credential
- M.D.
- Primary taxonomy
- Urology Physician 208800000X
- License number
- A21727 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1310 W Stewart Dr, Orange, CA 92868
- Phone
- (714) 547-5741
- Enumerated
- Dec 19, 2005
- Record last updated
- Jul 7, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (714) 547-5078
- Medicaid ID
- 00A217270 CA
- Entity
- Type 1 · individual
8 nearest urology physician records → All 1,524 in California → Look up another NPI →
Also registered at 1310 W Stewart Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Afshin Aminian, M.D.Specialist1609805910
- Lars Anker, MDNeurological Surgery Physician1962548537
- Shawn Beck, M.D.Urology Physician1669661849
Verify Luis I. Kobashi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A21727Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average urology physician in 2024
51 Medicare Part D claims, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D.
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.
Luis I. Kobashi among 1,524 urology physician records in California
Luis I. Kobashi, M.D. is one of 1,524 urology physician records with a practice address in California. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2014 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in California
There are 1,524 urology physician records in California.
All 1,524 in California → Every provider in Orange → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Thomas Ahlering, M.D.Orange, CA 928681013983386
- David Chamberlin, MDOrange, CA 928681205861994
- Akhil Das, MDOrange, CA 928681053310821
- Bela Denes, M.D.Orange, CA 928681811943129
- Joel Gelman, M.D.Orange, CA 928681275640047
- Gamal M. Ghoniem, M.D.Orange, CA 928681467415919
- Feraidoun Khonsari, M.D.Orange, CA 928681487612560
- David Lee, MDOrange, CA 928681730128232
Common questions
What is Luis I. Kobashi, M.D.'s NPI number?
Luis I. Kobashi, M.D.'s National Provider Identifier (NPI) is 1710963095, issued on Dec 19, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Luis I. Kobashi, M.D. located?
The NPPES record lists a practice address at 1310 W Stewart Dr, Orange, CA, 92868. Phone: (714) 547-5741. Providers update this record themselves, so call before visiting.
How can I verify Luis I. Kobashi, M.D.'s license?
NPPES lists California license number A21727, 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 Luis I. Kobashi, M.D. prescribe under Medicare Part D?
In 2024, Luis I. Kobashi, M.D. had 51 Medicare Part D claims; the average among urology physician prescribers was 1,340. 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.