DENNIS TRIGUEROS MD
NPI 1518945229
Emergency Medicine in Upland, CA
About Dennis Trigueros Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DENNIS TRIGUEROS MD (NPI 1518945229) is an individual emergency medicine provider in Upland, California, licensed in Delaware (CI0007214) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (2002).
NPPES Registry Identity
Specialties & Licenses
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
Dennis Trigueros Md 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
4Medicare enrollment records show Dennis Trigueros reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Upland, CA 91786
- Reassigned Medicare billing, California enrollment
- 103 clinicians in this Medicare group
Pomona, CA 91767
- Reassigned Medicare billing, California enrollment
- 95 clinicians in this Medicare group
Ojai, CA 93023
- Reassigned Medicare billing, California enrollment
- 29 clinicians in this Medicare group
Santa Barbara, CA 93105
- Reassigned Medicare billing, California enrollment
- 61 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 5
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 91786 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
UPLAND, CA 91786
UPLAND, CA 91786
UPLAND, CA 91786
UPLAND, CA 91786
UPLAND, CA 91786
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 Dennis Trigueros's NPI number?
The NPI number for Dennis Trigueros is 1518945229. It was assigned to this individual provider in the NPPES registry on January 3, 2006.
Where is Dennis Trigueros located?
Dennis Trigueros practices at 999 San Bernardino Rd, Upland, CA 91786. The listed phone number is (909) 985-2811.
What is Dennis Trigueros's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Dennis Trigueros enrolled in Medicare?
Yes. Dennis Trigueros 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 Dennis Trigueros's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dennis Trigueros reassigns Medicare benefits to 4 organizations: Mountain View Emergency Physicians Medical Group, Inc. (Upland, CA), Mountain View Urgent Care Group, Inc (Pomona, CA), Ojai Emergency Physicians Corporation (Ojai, CA) and South Coast Emergency Medical Group Inc (Santa Barbara, 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 Dennis Trigueros'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 Dennis Trigueros was last updated on September 22, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Dennis Trigueros, MD · NPI 1518945229
Emergency Medicine physician in Upland, California. Individual provider, active in the CMS NPPES registry since January 3, 2006.
## Identity
- **NPI:** 1518945229 (Entity type: Individual)
- **Enumerated:** January 3, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** CI0007214 (Delaware)
- **Sole proprietor:** No
## Practice location
- **Address:** 999 SAN BERNARDINO RD, Upland, CA 91786-4920
- **Phone:** (909) 985-2811
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Mountain View Emergency Physicians Medical Group, Inc. (NPI 1619923653, Upland, CA); Mountain View Urgent Care Group, Inc (NPI 1801233036, Pomona, CA); Ojai Emergency Physicians Corporation (NPI 1497152755, Ojai, CA); South Coast Emergency Medical Group Inc (NPI 1861432627, Santa Barbara, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Geffen School Of Medicine, class of 2002
## Record status
- **NPPES last updated:** September 22, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1518945229) · Data from the CMS NPPES public registry.