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

Dr. Susan Allison Ironstone, MD

Individual provider Anesthesiology Physician · NPI 1184854838

Dr. Susan Allison Ironstone, MD is an Anesthesiology in Worcester, Massachusetts. Qualified in 2009, 17 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 and Missouri.

Years since qualifying
17
Licensed in
MA, MO
In the registry since
2009
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 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 (1)

  • 725 North St, Pittsfield, MA 01201 — (413) 395-7655

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 270260 (MA)
Anesthesiology Physician Taxonomy 207L00000X · Licence 2014021714 (MO)
Pain Medicine (Anesthesiology) Physician Taxonomy 207LP2900X · Licence 270260 (MA)

Record details

NPI number1184854838
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 15, 2009
Last updated in NPPESFebruary 1, 2023
Certification dateFebruary 1, 2023

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Also practisesPAIN MANAGEMENT
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Umass Memorial Medical Group Inc — 2467 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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