Yennifer Y. Gil Castano
Internal Medicine Physician · Oxnard, CA
Yennifer Y. Gil Castano is an internal medicine physician with a practice address in Oxnard, California, and NPI 1205472990, issued on Nov 18, 2019. Check the license (California A185412, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Yennifer Y. Gil Castano
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A185412 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4400 Olds RD, Oxnard, CA 93033
- Phone
- (805) 986-5551
- Enumerated
- Nov 18, 2019
- Record last updated
- Jun 16, 2023
- Fax
- (805) 986-5556
- Medicare enrollment
- Enrolled (PECOS I20230627001023); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 4400 Olds RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lucrecia Campos Juarez, LCSWClinical Social Worker1801940887
- Summer Clark, LCSWClinical Social Worker1114475233
- Eeman Hasan, PA-CPhysician Assistant1659932606
- Rosa Maria Lazarovits, LMFTMarriage & Family Therapist1184016180
- Mojdeh Makhsusy, D.D.S.General Practice Dentistry1790796969
- Barbara Ramirez, PA-CPhysician Assistant1366263196
Verify Yennifer Y. Gil Castano in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A185412Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,468 Medicare Part D claims for 129 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium163 claims
- Metformin Hcl139 claims
- Amlodipine Besylate74 claims
- Lisinopril60 claims
- Januvia48 claims
- Ozempic46 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: $116.65
1 payment: food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through one group practice
- Clinicas Del Camino Real IncOxnard, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Yennifer Y. Gil Castano among 17,696 internal medicine physician records in California
Yennifer Y. Gil Castano is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 86% of them.
- NPI issued2019 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2010 · median 2004 among the 11,065 with a school on file
- Record last updated2023 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
44 internal medicine physician records list a practice address in Oxnard
They are 44 of the 3,211 NPPES records with a practice address in Oxnard, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Oxnard → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ananda Ananda, M.D,Oxnard, CA 930331912044181
- Grace HunterOxnard, CA 930331831622760
- Mohamud Qadi, MD, MPHOxnard, CA 930331467876599
- Yvonne Sanchez, MDOxnard, CA 930351861551459
- Victor Alcocer, M.D.Oxnard, CA 930361023171162
- Sulaiman Barkho, MDOxnard, CA 930301710417209
- Oscar Carazas, MDOxnard, CA 930301255745956
- Paul Cisarik, MDOxnard, CA 930361952515421
Common questions
What is Yennifer Y. Gil Castano's NPI number?
Yennifer Y. Gil Castano's National Provider Identifier (NPI) is 1205472990, issued on Nov 18, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Yennifer Y. Gil Castano located?
The NPPES record lists a practice address at 4400 Olds RD, Oxnard, CA, 93033. Phone: (805) 986-5551. Providers update this record themselves, so call before visiting.
How can I verify Yennifer Y. Gil Castano's license?
NPPES lists California license number A185412, 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 Yennifer Y. Gil Castano prescribe under Medicare Part D?
In 2024, Yennifer Y. Gil Castano had 1,468 Medicare Part D claims for 129 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.