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

Dr. John Harrison Krystal, MD

Individual provider Psychiatry Physician · NPI 1336226240

Dr. John Harrison Krystal, MD is a Psychiatry Physician in West Haven, Connecticut. Practices as a sole proprietor. Licensed in Connecticut.

Licensed in
CT
In the registry since
2006
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

950 Campbell Ave 151D
West Haven, CT 06516-2770
Phone: (203) 937-4790
Fax: (203) 937-3468
Show map & directions

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

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 027473 (CT)

Record details

NPI number1336226240
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedNovember 1, 2006
Last updated in NPPESAugust 21, 2019

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