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

Dr. Korilyn Sauser Zachrison, MD, MSC

Individual provider Emergency Medicine Physician · NPI 1396901914

Dr. Korilyn Sauser Zachrison, MD, MSC practises Emergency Medicine in Boston, Massachusetts. Qualified in 2008, 18 years ago. Practices with The General Hospital Corporation, a 1,276-clinician group and accepts Medicare assignment. Licensed in Illinois, Massachusetts and Michigan.

Years since qualifying
18
Licensed in
IL, MA, MI
In the registry since
2008
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

55 Fruit St Dept OF Emergency Medicine
Boston, MA 02114-2621 Not confirmed with CMS for 11 years — call before visiting
Phone: (617) 426-6636
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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 258693 (MA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 125054086 (IL)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 4301100223 (MI)

Record details

NPI number1396901914
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD , MSC
Sole proprietorNo
NPI enumeratedAugust 3, 2008
Last updated in NPPESJuly 27, 2015

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice The General Hospital Corporation — 1276 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients216
Services billed 252 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at The General Hospital Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1276 clinicians in the practice; 12 are shown here.

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