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

Arthur H Knowlton, MD

Individual provider Therapeutic Radiology Physician · NPI 1003808353

Arthur H Knowlton, MD is a Therapeutic Radiology Physician in New Haven, Connecticut. Licensed in Connecticut. Registered with an NPI since 2005.

Licensed in
CT
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1450 Chapel St
New Haven, CT 06511-4405
Phone: (203) 789-3131
Fax: (203) 789-3133
Show map & directions

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

Specialties & licences

Therapeutic Radiology Physician (primary) Taxonomy 2085R0203X · Licence 014766 (CT)

Record details

NPI number1003808353
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 22, 2005
Last updated in NPPESNovember 27, 2012

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