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

Individual provider Emergency Medicine Physician · NPI 1942397518

Christopher Maurischat, MD practises Internal Medicine in Roslyn, New York. Graduated from Georgetown University School of Medicine in 2003, 23 years ago. Practices with City Medical of Upper East Side PLLC, a 663-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
23
Trained at
Georgetown University School of Medicine
Licensed in
NY
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

100 Port Washington Blvd Dept OF Emergency Medicine
Roslyn, NY 11576-1353 Not confirmed with CMS for 17 years — call before visiting
Phone: (631) 686-7654
Fax: (631) 686-7653
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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 240764 (NY)

Record details

NPI number1942397518
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 6, 2006
Last updated in NPPESJuly 6, 2009

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 2003 (23 years in practice)
Group practice City Medical Of Upper East Side Pllc — 663 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 patients686
Services billed 1,322 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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 City Medical of Upper East Side PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 663 clinicians in the practice; 12 are shown here.

Other providers in Roslyn