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

John Marshall King, MD

Individual provider Family Medicine Physician · NPI 1790771269

John Marshall King, MD is a Family Medicine Physician in Haverhill, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2005.

Licensed in
MA
In the registry since
2005
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

1 Park Way
Haverhill, MA 01830-6278
Phone: (978) 521-3200
Fax: (978) 557-8798
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 215349 (MA)

Record details

NPI number1790771269
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 21, 2005
Last updated in NPPESApril 24, 2020
Certification dateApril 24, 2020
Mailing address1 Park Way, Haverhill, MA 01830-6278

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