Ilene Tsui, M.D
NPI 1063874840 · Obstetrics & Gynecology Physician · Oxnard, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ilene Tsui, M.D is a Obstetrics & Gynecology Physician provider in Oxnard, CA (NPI 1063874840).
Provider details
- NPI number
- 1063874840
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Female
- Sole proprietor
- No
- License
- A154639 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Estradiol | 20 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (2)
- St. John'S Pleasant Valley Hospital - 2309 Antonio AveCamarillo, CA 93010Phone: (805) 389-5800Fax: (805) 256-7840
- St. John'S Regional Medical Center - 1600 N Rose AvenueOxnard, CA 93030Phone: (805) 988-2500Fax: (805) 256-7840
Registry dates
- Enumerated
- 2016-03-22
- Last updated
- 2023-09-28
- Certified
- 2020-10-02
Frequently asked questions
- What is Ilene Tsui's NPI number?
- Ilene Tsui's National Provider Identifier (NPI) is 1063874840, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ilene Tsui's specialty?
- Ilene Tsui is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Ilene Tsui located?
- Ilene Tsui's practice location on file with NPPES is 1700 N Rose Ave Ste 280, Oxnard, CA 93030-7645.
- What is Ilene Tsui's phone number?
- The practice phone number listed in the NPPES registry for Ilene Tsui is (805) 384-8071.
- Does Ilene Tsui accept Medicare?
- Ilene Tsui is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ilene Tsui's NPI active?
- Yes — Ilene Tsui's NPI (1063874840) is active in the NPPES registry as of the last update on 2023-09-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.