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Contact Information

DAVID K DIFFEE, PHD
1777 S HARRISON ST
STE 407
DENVER, CO80210
 Phone: 303-757-4399
 Fax: 303-757-4547
 Website:
 

Specialty

Taxonomy Code Specialty Code Provider Type

Psychologist

103T00000X 62 Psychologist, Clinical
 

Addiction (Substance Use Disorder)

103TA0400X 62 Psychologist, Clinical
 

Clinical

103TC0700X 62 Psychologist, Clinical
Indicates primary specialty

NPI Profile & details for DAVID K DIFFEE · (Male)

NPI Number 1790870590
Status Active
Credentials PHD
Entity Individual
Enumeration date 10/04/2006
Last updated 09/11/2025 - About 9 months ago
Sole proprietor 1 No
Identifiers
  • CO License # 2074
  • CO License # 4379
Hospital affiliation(s) Not Available
1 A sole proprietor/sole proprietorship is an individual, and as such, is eligible for a single NPI number. The sole proprietor must apply for the NPI number using his or her own Social Security Number (SSN), not an Employer Identification Number (EIN) even if he/she has an EIN.

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