Gilbert Y. Zini, M.D.
Emergency Medicine Physician · Rancho Cucamonga, CA
Gilbert Y. Zini, M.D. is an emergency medicine physician with a practice address in Rancho Cucamonga, California, and NPI 1558375303, issued on Jul 28, 2006. Check the license (California A30191, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gilbert Y. Zini
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A30191 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8283 Grove Ave, Ste. 106, Rancho Cucamonga, CA 91730
- Phone
- (909) 982-1888
- Enumerated
- Jul 28, 2006
- Record last updated
- Aug 20, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (909) 982-2522
- Medicaid ID
- 00A301910 CA
- Medicare enrollment
- Enrolled (PECOS I20070201000252); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Verify Gilbert Y. Zini in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A30191Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% more Medicare Part D claims than the average emergency medicine physician in 2024
329 Medicare Part D claims for 151 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 20 claims were for opioids.
Most prescribed
- Cefdinir29 claims
- Prednisone19 claims
- Azithromycin16 claims
- Olmesartan Medoxomil16 claims
- Cyclobenzaprine Hcl14 claims
- Diclofenac Potassium14 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.
Bills Medicare through 2 group practices
- Desert Valley Medical Group IncVictorville, CA
- Ignite Emergency Physicians A Medical CorporationVictorville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gilbert Y. Zini among 7,751 emergency medicine physician records in California
Gilbert Y. Zini, M.D. is one of 7,751 emergency medicine physician records with a practice address in California. 81% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 60% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1973 · median 2011 among the 4,560 with a school on file
- Record last updated2015 · 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 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Rancho Cucamonga → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Thuy Nguyen, MDRancho Cucamonga, CA 917301336162858
- Jonathan Dyreyes, M.D.El Monte, CA 917321518159698
- Assibi Abudu, M.D.South El Monte, CA 917331376585042
- Weyjuin Chao, M.D.South El Monte, CA 917331154852218
- Anh Mai, M.D.South El Monte, CA 917331376706853
- Syed Mohsin Shamim ZaidiEl Monte, CA 917331225480932
- Sarah Anh, M.D.Covina, CA 917231104037159
- Frishta Ataie, MDCovina, CA 917231487940102
Common questions
What is Gilbert Y. Zini, M.D.'s NPI number?
Gilbert Y. Zini, M.D.'s National Provider Identifier (NPI) is 1558375303, issued on Jul 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gilbert Y. Zini, M.D. located?
The NPPES record lists a practice address at 8283 Grove Ave, Ste. 106, Rancho Cucamonga, CA, 91730. Phone: (909) 982-1888. Providers update this record themselves, so call before visiting.
How can I verify Gilbert Y. Zini, M.D.'s license?
NPPES lists California license number A30191, 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 Gilbert Y. Zini, M.D. prescribe under Medicare Part D?
In 2024, Gilbert Y. Zini, M.D. had 329 Medicare Part D claims for 151 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.