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

Matthew S Kayser, MD

Individual provider Psychiatry Physician · NPI 1790928869

Matthew S Kayser, MD practises Psychiatry in Philadelphia, Pennsylvania. Graduated from Perelman School of Med at the University of Pennsylvania in 2009, 17 years ago. Practices with University of Penn-Medical Group, a 3,401-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Pennsylvania.

Years since qualifying
17
Trained at
Perelman School of Med at the University of Pennsylvania
Licensed in
PA
In the registry since
2009
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

3535 Market St 3rd Fl
Philadelphia, PA 19104-3309 Not confirmed with CMS for 13 years — call before visiting
Phone: (215) 746-6700
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence MD444399 (PA)

Record details

NPI number1790928869
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 20, 2009
Last updated in NPPESJune 6, 2013

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolPERELMAN SCHOOL OF MED AT THE UNIVERSITY OF PENNSYLVANIA
Graduated 2009 (17 years in practice)
Group practice University Of Penn-Medical Group — 3401 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients23
Services billed 60 a service is one billed item, such as a visit, a test or a procedure
Average patient age67

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at University of Penn-Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3401 clinicians in the practice; 12 are shown here.

Other providers in Philadelphia