Brianna Thiessen, - Medicare Emergency Medicine in Riverside, CA

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Brianna Thiessen, is a medicare enrolled "Emergency Medicine" physician in Riverside, California. Her current practice location is 10800 Magnolia Ave, Riverside, California. You can reach out to her office (for appointments etc.) via phone at (833) 574-2273.

Brianna Thiessen is licensed to practice in California (license number 20A20763) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1588018584.

Contact Information

Brianna Thiessen,
10800 Magnolia Ave,
Riverside, CA 92505-3043
(833) 574-2273
Not Available

Map and Direction




Physician's Profile

Full NameBrianna Thiessen
GenderFemale
SpecialityEmergency Medicine
Location10800 Magnolia Ave, Riverside, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1588018584
  • Provider Enumeration Date: 04/16/2016
  • Last Update Date: 10/27/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 7517203995
  • Enrollment ID: I20210618000217

Medical Identifiers

Medical identifiers for Brianna Thiessen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1588018584NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 20A20763 (California)Primary

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. Brianna Thiessen allows following entities to bill medicare on her behalf.
Entity NameGood Samaritan Hospital Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518901180
PECOS PAC ID: 5294639951
Enrollment ID: O20031124000491
Entity NameMercy Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1619245610
PECOS PAC ID: 4082518006
Enrollment ID: O20040210000431
Entity NameSamaritan Emergency Medical Services Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1104978014
PECOS PAC ID: 7012016660
Enrollment ID: O20070621000503
Entity NameProgressive Emergency Physicians Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1588098172
PECOS PAC ID: 8820225956
Enrollment ID: O20131218000289
Entity NameLong Island Community Hospital At Nyu Langone Health
Entity TypePart B Supplier - Hospital Department(s)
Entity IdentifiersNPI Number: 1508346248
PECOS PAC ID: 9739090051
Enrollment ID: O20190204000682

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. Brianna Thiessen 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
Brianna Thiessen,
10800 Magnolia Ave,
Riverside, CA 92505-3043

Ph: () -		Brianna Thiessen,
10800 Magnolia Ave,
Riverside, CA 92505-3043

Ph: (833) 574-2273

Reviews and Comments


Emergency Medicine Doctors in Riverside, CA

Dr. Chad Leroy Clark, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3865 Jackson St, Riverside, CA 92503
Phone: 951-352-5666    Fax: 951-352-5445
Dr. David Stuart Siegel, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3425 Torrey St, Riverside, CA 92503
Phone: 561-685-6148    
Doug John Williamson, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 10800 Magnolia Ave, Riverside, CA 92505
Phone: 909-353-2000    
Kenneth Johnson, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4445 Magnolia Ave, Riverside, CA 92501
Phone: 951-788-3537    Fax: 951-788-3173
Dr. Ernest Woodhouse, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 4440 Magnolia Ave., Riverside, CA 92501
Phone: 951-788-3200    
Dr. Michael Kang, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4445 Magnolia Ave, Riverside, CA 92501
Phone: 951-684-3910    
Dr. Humberto Alirio Silva, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3865 Jackson St, Riverside, CA 92503
Phone: 951-352-5666    Fax: 951-352-5445

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.