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

Dr. John E Sadler, MD

Individual provider Psychiatry Physician · NPI 1407909807

Dr. John E Sadler, MD is a Psychiatry Physician in Denver, Colorado. Licensed in Colorado. Registered with an NPI since 2007.

Licensed in
CO
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

4455 E 12th Ave
Denver, CO 80220-2415
Phone: (303) 504-7700
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 15047 (CO)
Child & Adolescent Psychiatry Physician Taxonomy 2084P0804X · Licence 15047 (CO)

Record details

NPI number1407909807
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 19, 2007
Last updated in NPPESFebruary 22, 2016
Mailing address4455 E 12th Ave, Denver, CO 80220-2415

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