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

George A. Tjionas, MD

Individual provider Clinical Pathology Physician · NPI 1982946307

George A. Tjionas, MD is a Pathology in Worcester, Massachusetts. Qualified in 2013, 13 years ago. Practices with Umass Memorial Medical Group Inc, a 2,467-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
13
Licensed in
MA
In the registry since
2013
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

55 Lake Ave N
Worcester, MA 01655-0002
Phone: (508) 793-6100
Fax: (508) 793-6110
Show map & directions

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

Additional practice locations (3)

  • 1611 Nw 12th Ave, Miami, FL 33136-1005 — (305) 585-1111
  • 1 Innovation Drive, Worcester, MA 01605 — (508) 334-1000
  • 1 Innovation Drive, Worcester, MA 01605 — (508) 334-1000

Specialties & licences

Clinical Pathology Physician (primary) Taxonomy 207ZC0006X · Licence 273014 (MA)

Record details

NPI number1982946307
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 24, 2013
Last updated in NPPESMarch 26, 2021
Certification dateMarch 26, 2021
Mailing addressPo Box 415348, Boston, MA 02241-5348

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Umass Memorial Medical Group Inc — 2467 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount