Ilene K. Tsui, M.D
Obstetrics & Gynecology Physician · Oxnard, CA
Ilene K. Tsui, M.D is an obstetrics & gynecology physician with a practice address in Oxnard, California, and NPI 1063874840, issued on Mar 22, 2016. Check the license (California A154639, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ilene K. Tsui
- Credential
- M.D
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A154639 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1700 N Rose Ave Ste 280, Oxnard, CA 93030
- Phone
- (805) 384-8071
- Enumerated
- Mar 22, 2016
- Record last updated
- Sep 28, 2023
- Fax
- (805) 278-6477
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 1700 N Rose Ave Ste 280
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lily Mallare, M.D.Obstetrics & Gynecology Physician1902002488
- Neha Sharma, MDPediatrics Physician1255837845
Verify Ilene K. Tsui in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A154639Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
47 Medicare Part D claims for 18 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol20 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.
Ilene K. Tsui among 5,088 obstetrics & gynecology physician records in California
Ilene K. Tsui, M.D is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 85% of them.
- NPI issued2016 · 85% of these records are older, 13% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2023 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Oxnard → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Scott Changchien, M.D.Oxnard, CA 930301902850555
- Julian Chiang, M.D.Oxnard, CA 930301043276363
- Jan Eperjesi, M.D.Oxnard, CA 930301528389020
- Antoine Hanna, MDOxnard, CA 930301104855600
- Sarah Harrington, MDOxnard, CA 930301881095644
- Tzong HuangOxnard, CA 930301407800121
- James Ingaglio, M.D.Oxnard, CA 930301124006838
- Tajinder Kaur, M.D.Ventura, CA 930301124035969
Common questions
What is Ilene K. Tsui, M.D's NPI number?
Ilene K. Tsui, M.D's National Provider Identifier (NPI) is 1063874840, issued on Mar 22, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Ilene K. Tsui, M.D located?
The NPPES record lists a practice address at 1700 N Rose Ave Ste 280, Oxnard, CA, 93030. Phone: (805) 384-8071. Providers update this record themselves, so call before visiting.
How can I verify Ilene K. Tsui, M.D's license?
NPPES lists California license number A154639, 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 Ilene K. Tsui, M.D prescribe under Medicare Part D?
In 2024, Ilene K. Tsui, M.D had 47 Medicare Part D claims for 18 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.