RYAN ITOH MD
NPI 1962089573
Emergency Medicine in Temecula, CA
About Ryan Itoh Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RYAN ITOH MD (NPI 1962089573) is an individual emergency medicine provider in Temecula, California, licensed in California (A187158) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with Northwest Texas Hospital, and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Ryan Itoh 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
5Medicare enrollment records show Ryan Itoh reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Murrieta, CA 92562
- Reassigned Medicare billing, California enrollment
- 112 clinicians in this Medicare group
Chino, CA 91710
- Reassigned Medicare billing, California enrollment
- 99 clinicians in this Medicare group
Dalhart, TX 79022
- Reassigned Medicare billing, Texas enrollment
- Also billed through NPI 1639176456 (Texas)
- 57 clinicians in this Medicare group
Amarillo, TX 79106
- Reassigned Medicare billing, Texas enrollment
- 150 clinicians in this Medicare group
Gainesville, TX 76240
- Reassigned Medicare billing, Texas enrollment
- 1,193 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 4
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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northwest Texas Hospital
Acute Care Hospitals · Amarillo, TXBsa Hospital
Acute Care Hospitals · Amarillo, TXCoon Memorial Hospital
Critical Access Hospitals · Dalhart, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92592 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 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
TEMECULA, CA 92592
TEMECULA, CA 92592
TEMECULA, CA 92592
TEMECULA, CA 92592
TEMECULA, CA 92592
TEMECULA, CA 92592
TEMECULA, CA 92592
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 Ryan Itoh's NPI number?
The NPI number for Ryan Itoh is 1962089573. It was assigned to this individual provider in the NPPES registry on March 28, 2021.
Where is Ryan Itoh located?
Ryan Itoh practices at 31700 Temecula Parkway Parkway Suites # 1- Gme, Temecula, CA 92592. The listed phone number is (951) 331-2535.
What is Ryan Itoh's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Ryan Itoh enrolled in Medicare?
Yes. Ryan Itoh 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 Ryan Itoh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ryan Itoh reassigns Medicare benefits to 5 organizations: Em Alliance California, Apc (Murrieta, CA), Chino Emergency Medical Associates, Inc. (Chino, CA), Dallam-Hartley Counties Hospital District (Dalhart, TX), Em Alliance Texas, PLLC (Amarillo, TX) and Acs Primary Care Physicians Southwest, PA (Gainesville, TX). 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 Ryan Itoh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ryan Itoh accept?
Health plans from Baylor Scott and White Health Plan and Blue Cross and Blue Shield of Texas list Ryan Itoh as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Ryan Itoh affiliated with any hospitals?
According to CMS data, Ryan Itoh is affiliated with Northwest Texas Hospital, Bsa Hospital and Coon Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Ryan Itoh was last updated on March 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.
# Ryan Itoh, MD · NPI 1962089573
Emergency Medicine physician in Temecula, California. Individual provider, active in the CMS NPPES registry since March 28, 2021.
## Identity
- **NPI:** 1962089573 (Entity type: Individual)
- **Enumerated:** March 28, 2021
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A187158 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 31700 TEMECULA PARKWAY, PARKWAY SUITES # 1- GME, Temecula, CA 92592
- **Phone:** (951) 331-2535
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Em Alliance California, Apc (NPI 1376305755, Murrieta, CA); Chino Emergency Medical Associates, Inc. (NPI 1013282029, Chino, CA); Dallam-Hartley Counties Hospital District (NPI 1245353747, Dalhart, TX); Em Alliance Texas, PLLC (NPI 1902621329, Amarillo, TX); Acs Primary Care Physicians Southwest, PA (NPI 1538101019, Gainesville, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** March 6, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1962089573) · Data from the CMS NPPES public registry.