Ryan Itoh, MD - Medicare Emergency Medicine in Temecula, CA

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Ryan Itoh, MD is a medicare enrolled "Emergency Medicine" physician in Temecula, California. He graduated from medical school in 2021 and has 5 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Dallam-hartley Counties Hospital District, Em Alliance Texas Pllc and his current practice location is 31700 Temecula Parkway, Parkway Suites # 1- Gme, Temecula, California. You can reach out to his office (for appointments etc.) via phone at (951) 331-2535.

Ryan Itoh is licensed to practice in California (license number A187158) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1962089573.

Contact Information

Ryan Itoh, MD
31700 Temecula Parkway, Parkway Suites # 1- Gme,
Temecula, CA 92592
(951) 331-2535
Not Available

Map and Direction




Physician's Profile

Full NameRyan Itoh
GenderMale
SpecialityEmergency Medicine
Experience5 Years
Location31700 Temecula Parkway, Temecula, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Ryan Itoh graduated from medical school in 2021
  NPI Data:
  • NPI Number: 1962089573
  • Provider Enumeration Date: 03/28/2021
  • Last Update Date: 03/06/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 4981059177
  • Enrollment ID: I20251027000741

Medical Identifiers

Medical identifiers for Ryan Itoh such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1962089573NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine V4124 (Texas)Secondary
207P00000XEmergency Medicine A187158 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Bsa HospitalAmarillo, TXHospital
Northwest Texas HospitalAmarillo, TXHospital
Coon Memorial HospitalDalhart, TXHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Dallam-hartley Counties Hospital District014311280517
Em Alliance Texas Pllc458719243088

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Ryan Itoh allows following entities to bill medicare on his behalf.
Entity NameDallam-hartley Counties Hospital District
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1245353747
PECOS PAC ID: 0143112805
Enrollment ID: O20040428001365
Entity NameAcs Primary Care Physicians Southwest PA
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538101019
PECOS PAC ID: 1850204363
Enrollment ID: O20041206000027
Entity NameDallam-hartley Counties Hospital District
Entity TypePart A Provider - Critical Access Hospital
Entity IdentifiersNPI Number: 1639176456
PECOS PAC ID: 0143112805
Enrollment ID: O20090429000575
Entity NameEm Alliance Texas PLLC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902621329
PECOS PAC ID: 4587192430
Enrollment ID: O20250107000141

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Ryan Itoh is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Ryan Itoh, MD
31700 Temecula Pkwy Ste 1,
Temecula, CA 92592-5896

Ph: Not Available		Ryan Itoh, MD
31700 Temecula Parkway, Parkway Suites # 1- Gme,
Temecula, CA 92592

Ph: (951) 331-2535

Reviews and Comments


Emergency Medicine Doctors in Temecula, CA

Dee M L'archeveque, MD
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Medicare: Medicare Enrolled
Practice Location: 31843 Rancho California Rd, Suite B200, Temecula, CA 92591
Phone: 951-694-0400    Fax: 951-694-0441
Philine Johanna Endres-shafer, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 31700 Temecula Pkwy Ste Gme 3, Temecula, CA 92592
Phone: 951-331-2535    
Charley Yuchao Cui,
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 31700 Temecula Pkwy Ste 2, Temecula, CA 92592
Phone: 951-331-2535    
Dr. Nagehan Ayakta, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 31700 Temecula Pkwy, Temecula, CA 92592
Phone: 951-331-2280    
Grant Mccullen Schumaker, MD
Emergency Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 31700 Temecula Pkwy Ste Gme 3, Temecula, CA 92592
Phone: 951-331-2535    
Dr. Calvin James Woodard, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 31700 Temecula Pkwy Ste 1, Temecula, CA 92592
Phone: 951-331-2535    
Caleb Lou,
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 31700 Temecula Pkwy Ste 1, Temecula, CA 92592
Phone: 951-331-2535    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.