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

Individual provider Pediatrics Physician · NPI 1144344318

Dr. Rosemarie Dieffenbach, MD is a Pediatrics Physician in Weston, Massachusetts. Licensed in Colorado and Massachusetts. Registered with an NPI since 2007.

Licensed in
CO, MA
In the registry since
2007
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

486 Boston Post Rd
Weston, MA 02493-1529
Phone: (781) 899-4456
Fax: (781) 647-9578
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence 232539 (MA)
Pediatrics Physician Taxonomy 208000000X · Licence 43732 (CO)

Record details

NPI number1144344318
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 16, 2007
Last updated in NPPESJanuary 13, 2012

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