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

Jason L Greenbaum, MD

Individual provider Emergency Medicine Physician · NPI 1649205493

Jason L Greenbaum, MD is an Emergency Medicine in Stamford, Connecticut. Qualified in 2002, 24 years ago. Practices with Athol Memorial Hospital Incorporated, a 84-clinician group and accepts Medicare assignment. Licensed in Connecticut and Michigan.

Years since qualifying
24
Licensed in
CT, MI
In the registry since
2006
Specialties on file
2
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

30 Shelburne Rd
Stamford, CT 06902-3628
Phone: (330) 493-4443
Fax: (330) 493-8677
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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 44305 (CT)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 4301082237 (MI)

Record details

NPI number1649205493
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 11, 2006
Last updated in NPPESApril 21, 2020
Certification dateApril 21, 2020

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Athol Memorial Hospital Incorporated — 84 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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