Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Matthew Sinclair Kaplan, MD

Individual provider Emergency Medicine Physician · NPI 1518991322

Dr. Matthew Sinclair Kaplan, MD practises Emergency Medicine in Mission Viejo, California. Graduated from Tulane University School of Medicine in 1995, 31 years ago. Practices with Mission Viejo Emergency Medical Associates, a 15-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
31
Trained at
Tulane University School of Medicine
Licensed in
CA
In the registry since
2006
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

27700 Medical Center Rd
Mission Viejo, CA 92691-6426 Not confirmed with CMS for 18 years — call before visiting
Phone: (949) 364-1400
Fax: (949) 365-4941
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence A61677 (CA)

Record details

NPI number1518991322
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 10, 2006
Last updated in NPPESJune 27, 2008

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolTULANE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Mission Viejo Emergency Medical Associates — 15 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients329
Services billed 426 a service is one billed item, such as a visit, a test or a procedure
Average patient age80

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mission Viejo Emergency Medical Associates

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 15 clinicians in the practice; 9 are shown here.

Other providers in Mission Viejo