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

Dr. Neil D Bach, MD

Individual provider Internal Medicine Physician · NPI 1407819626

Dr. Neil D Bach, MD is an Internal Medicine Physician in Greenfield, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

Licensed in
MA
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

146 Federal St
Greenfield, MA 01301-2511
Phone: (413) 774-2222
Fax: (413) 774-2225
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Sleep Medicine (Internal Medicine) Physician (primary) Taxonomy 207RS0012X · Licence 48251 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 48251 (MA)

Record details

NPI number1407819626
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 10, 2006
Last updated in NPPESJuly 25, 2019
Mailing address50 Maple St, Springfield, MA 01103-1979

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