DR. GILBERT Y. ZINI M.D.
NPI 1558375303
Emergency Medicine in Rancho Cucamonga, CA
About Dr. Gilbert Y. Zini M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GILBERT Y. ZINI M.D. (NPI 1558375303) is an individual emergency medicine provider in Rancho Cucamonga, California, licensed in California (A30191) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1973).
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Gilbert Y. Zini M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Gilbert Zini reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chino, CA 91710
- Reassigned Medicare billing, California enrollment
- 145 clinicians in this Medicare group
Anaheim, CA 92801
- Reassigned Medicare billing, California enrollment
- 40 clinicians in this Medicare group
Victorville, CA 92395
- Reassigned Medicare billing, California enrollment
- 53 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91730 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Gilbert Zini's NPI number?
The NPI number for Gilbert Zini is 1558375303. It was assigned to this individual provider in the NPPES registry on July 28, 2006.
Where is Gilbert Zini located?
Gilbert Zini practices at 8283 Grove Ave, Ste. 106, Rancho Cucamonga, CA 91730. The listed phone number is (909) 982-1888.
What is Gilbert Zini's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Gilbert Zini enrolled in Medicare?
Yes. Gilbert Zini is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Gilbert Zini's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gilbert Zini reassigns Medicare benefits to 3 organizations: Desert Valley Medical Group, Inc (Chino, CA), Southland Emergency Medical Associates Inc (Anaheim, CA) and Ignite Emergency Physicians A Medical Corporation (Victorville, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gilbert Zini's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Gilbert Zini was last updated on August 20, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Gilbert Y. Zini, M.D. · NPI 1558375303
Emergency Medicine physician in Rancho Cucamonga, California. Individual provider, active in the CMS NPPES registry since July 28, 2006.
## Identity
- **NPI:** 1558375303 (Entity type: Individual)
- **Enumerated:** July 28, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A30191 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 8283 GROVE AVE, STE. 106, Rancho Cucamonga, CA 91730-3137
- **Phone:** (909) 982-1888 · **Fax:** (909) 982-2522
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Desert Valley Medical Group, Inc (NPI 1588246425, Chino, CA); Southland Emergency Medical Associates Inc (NPI 1932640935, Anaheim, CA); Ignite Emergency Physicians A Medical Corporation (NPI 1437918307, Victorville, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1973
## Record status
- **NPPES last updated:** August 20, 2015
- **Other identifiers:** Medicare PIN 00A301910 (CA); Medicare UPIN A26000; Medicare UPIN A26000 (CA); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1558375303) · Data from the CMS NPPES public registry.