Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Matthew Ulysses Janssen, MD

Individual provider Hospice and Palliative Medicine (Emergency Medicine) Physician · NPI 1497857023

Dr. Matthew Ulysses Janssen, MD is a Hospice/Palliative Care in Pomona, California. Graduated from University of California, Geffen School of Medicine in 2002, 24 years ago. Practices with Memorialcare Medical Foundation, a 562-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
24
Trained at
University of California, Geffen School of Medicine
Licensed in
CA
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1798 N Garey Ave
Pomona, CA 91767-2918
Phone: (909) 865-9600
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospice and Palliative Medicine (Internal Medicine) Physician (primary) Taxonomy 207RH0002X · Licence A86129 (CA)
Hospice and Palliative Medicine (Emergency Medicine) Physician Taxonomy 207PH0002X · Licence A86129 (CA)
Hospitalist Physician Taxonomy 208M00000X · Licence A86129 (CA)

Record details

NPI number1497857023
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 3, 2006
Last updated in NPPESSeptember 17, 2024
Certification dateSeptember 17, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHOSPICE/PALLIATIVE CARE
Also practisesEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 2002 (24 years in practice)
Group practice Memorialcare Medical Foundation — 562 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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