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

Marc C Tarsillo, MD

Individual provider Emergency Medicine Physician · NPI 1962964486

Marc C Tarsillo, MD practises Emergency Medicine in Dover, Delaware. Qualified in 2019, 7 years ago. Practices with Bayhealth Emergency Physicians LLC, a 78-clinician group and accepts Medicare assignment. Licensed in Delaware.

Years since qualifying
7
Licensed in
DE
In the registry since
2019
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

640 S State St
Dover, DE 19901-3530
Phone: (302) 674-4700
Fax: (302) 735-3845
Show map & directions

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

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence C1-0025894 (DE)

Record details

NPI number1962964486
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 3, 2019
Last updated in NPPESJune 12, 2023
Certification dateJune 2, 2023

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Bayhealth Emergency Physicians Llc — 78 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 patients752
Services billed 826 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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. Those with a page here are linked.

Colleagues at Bayhealth Emergency Physicians LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 78 clinicians in the practice; 12 are shown here.

Other providers in Dover