Dr Matthew Ulysses Janssen, MD - Medicare Emergency Medicine in Pomona, CA

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Dr Matthew Ulysses Janssen, MD is a medicare enrolled "Internal Medicine - Hospice And Palliative Medicine" physician in Pomona, California. He went to University Of California, Geffen School Of Medicine and graduated in 2002 and has 22 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice California Emergency Physicians Medical Group A Professional Corp and his current practice location is 1798 N Garey Ave, Pomona, California. You can reach out to his office (for appointments etc.) via phone at (909) 865-9600.

Dr Matthew Ulysses Janssen is licensed to practice in California (license number A86129) 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 1497857023.

Contact Information

Dr Matthew Ulysses Janssen, MD
1798 N Garey Ave,
Pomona, CA 91767-2918
(909) 865-9600
Not Available

Map and Direction




Physician's Profile

Full NameDr Matthew Ulysses Janssen
GenderMale
SpecialityEmergency Medicine
Experience22 Years
Location1798 N Garey Ave, Pomona, 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:
  • Dr Matthew Ulysses Janssen attended and graduated from University Of California, Geffen School Of Medicine in 2002
  NPI Data:
  • NPI Number: 1497857023
  • Provider Enumeration Date: 09/03/2006
  • Last Update Date: 11/10/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 8325084858
  • Enrollment ID: I20050706000409

Medical Identifiers

Medical identifiers for Dr Matthew Ulysses Janssen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1497857023NPI-NPPES
00A861290MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207PH0002XEmergency Medicine - Hospice And Palliative Medicine A86129 (California)Secondary
208M00000XHospitalist A86129 (California)Secondary
207RH0002XInternal Medicine - Hospice And Palliative Medicine A86129 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Memorialcare Saddleback Medical CenterLaguna hills, CAHospital
Memorialcare Orange Coast Medical CenterFountain valley, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
California Emergency Physicians Medical Group A Professional Corp327476387518

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. Dr Matthew Ulysses Janssen allows following entities to bill medicare on his behalf.
Entity NameCep America - California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023063542
PECOS PAC ID: 6103739131
Enrollment ID: O20031106000520
Entity NameCep America - California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548667843
PECOS PAC ID: 6103739131
Enrollment ID: O20040121000458
Entity NameCalifornia Emergency Physicians Medical Group A Professional Corp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215365218
PECOS PAC ID: 3274763875
Enrollment ID: O20140227000392
Entity NameCaremore Health Medical Partners West, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073110607
PECOS PAC ID: 8921419813
Enrollment ID: O20201125000882

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. Dr Matthew Ulysses Janssen 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
Dr Matthew Ulysses Janssen, MD
2100 Powell St, Suite 900,
Emeryville, CA 94608-1826

Ph: (510) 350-2600		Dr Matthew Ulysses Janssen, MD
1798 N Garey Ave,
Pomona, CA 91767-2918

Ph: (909) 865-9600

Reviews and Comments


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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.