John Holmberg, PSY.D.
NPI 1639362296 · Clinical Psychologist · Littleton, CO
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Holmberg, PSY.D. is a Clinical Psychologist provider in Littleton, CO (NPI 1639362296).
Provider details
- NPI number
- 1639362296
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 2534 (CO)
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Clinical Child & Adolescent Psychologist103TC2200X
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-08-27
- Last updated
- 2014-05-05
Frequently asked questions
- What is John Holmberg's NPI number?
- John Holmberg's National Provider Identifier (NPI) is 1639362296, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Holmberg's specialty?
- John Holmberg is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is John Holmberg located?
- John Holmberg's practice location on file with NPPES is 5860 S Curtice St, Littleton, CO 80120-1909.
- What is John Holmberg's phone number?
- The practice phone number listed in the NPPES registry for John Holmberg is (303) 503-4448.
- Does John Holmberg accept Medicare?
- John Holmberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Holmberg's NPI active?
- Yes — John Holmberg's NPI (1639362296) is active in the NPPES registry as of the last update on 2014-05-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.