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

Gregory James Mitchon, MD

Individual provider Critical Care Medicine (Anesthesiology) Physician · NPI 1902174766

Gregory James Mitchon, MD practises Anesthesiology in Worcester, Massachusetts. Qualified in 2015, 11 years ago. Practices with Umass Memorial Medical Group Inc, a 2,467-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Massachusetts, Texas and Washington.

Years since qualifying
11
Licensed in
MA, TX, WA
In the registry since
2011
Specialties on file
4
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) 334-3271
Fax: (508) 856-5911
Show map & directions

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

Additional practice locations (2)

  • 1211 Medical Center Dr, Nashville, TN 37232 — (615) 322-5000
  • 925 Seneca St, Seattle, WA 98101-2742 — (206) 583-6079

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 282487 (MA)
Critical Care Medicine (Anesthesiology) Physician Taxonomy 207LC0200X · Licence 282487 (MA)
Pharmacist Taxonomy 183500000X · Licence 50033 (TX)
Anesthesiology Physician Taxonomy 207L00000X · Licence ML60558709 (WA)

Record details

NPI number1902174766
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 8, 2011
Last updated in NPPESDecember 8, 2023
Certification dateDecember 8, 2023

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Umass Memorial Medical Group Inc — 2467 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 patients235
Services billed 402 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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 Umass Memorial Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2467 clinicians in the practice; 12 are shown here.

Other providers in Worcester