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

Individual provider Internal Medicine Physician · NPI 1629166244

Jonathan D Holder, DO, MPH is an Internal Medicine Physician in Somerville, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

Licensed in
MA
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.
MPH — Master of Public Health
A graduate degree in population health.

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Practice location Address checks out

5 Middlesex Ave
Somerville, MA 02145-1102
Phone: (617) 591-4660
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 76754 (MA)

Record details

NPI number1629166244
Entity typeIndividual (Type 1)
GenderMale
Credentials DO , MPH
Sole proprietorNo
NPI enumeratedOctober 10, 2006
Last updated in NPPESJuly 8, 2007
Mailing address5 Middlesex Ave, Somerville, MA 02145-1102

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