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

John A Holbrook, MD

Individual provider Emergency Medicine Physician · NPI 1093875593

John A Holbrook, MD is an Emergency Medicine Physician in Hadley, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

Licensed in
MA
In the registry since
2006
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

5 W St
Hadley, MA 01035-9504
Phone: (413) 237-1161
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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 40494 (MA)

Record details

NPI number1093875593
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 12, 2006
Last updated in NPPESJuly 8, 2007
Mailing address5 West St, Hadley, MA 01035-9504

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