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

Cassandra N. Mackey, MD

Individual provider Emergency Medicine Physician · NPI 1578927554

Cassandra N. Mackey, MD is an Emergency Medicine in Worcester, Massachusetts. Graduated from New York Medical College in 2016, 10 years ago. Practices with Umass Memorial Medical Group Inc, a 2,467-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
10
Trained at
New York Medical College
Licensed in
MA
In the registry since
2016
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

55 Lake Ave N
Worcester, MA 01655-0002
Phone: (508) 421-1400
Fax: (508) 421-1490
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (1)

  • 5323 Harry Hines Blvd, Dallas, TX 75390-7201 — (214) 590-8000

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 282315 (MA)

Record details

NPI number1578927554
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 6, 2016
Last updated in NPPESNovember 24, 2020
Certification dateNovember 24, 2020
Mailing addressPo Box 415348, Boston, MA 02241-5348

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 2016 (10 years in practice)
Group practice Umass Memorial Medical Group Inc — 2467 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Worcester