Christopher Slack, PHD
NPI 1407593221 · Counseling Psychologist · Grapevine, TX
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Slack, PHD is a Counseling Psychologist provider in Grapevine, TX (NPI 1407593221).
Provider details
- NPI number
- 1407593221
- Entity type
- Individual
- Primary specialty
- Counseling PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 38821 (TX)
Specialties & taxonomies
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
4 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
- 2022-05-13
- Last updated
- 2022-05-13
- Certified
- 2022-05-12
Frequently asked questions
- What is Christopher Slack's NPI number?
- Christopher Slack's National Provider Identifier (NPI) is 1407593221, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Slack's specialty?
- Christopher Slack is listed in the NPPES registry with a primary specialty of Counseling Psychologist (Behavioral Health & Social Service Providers).
- Where is Christopher Slack located?
- Christopher Slack's practice location on file with NPPES is 1135 S Main St, Grapevine, TX 76051-7533.
- What is Christopher Slack's phone number?
- The practice phone number listed in the NPPES registry for Christopher Slack is (817) 329-5041.
- Does Christopher Slack accept Medicare?
- Christopher Slack is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Slack's NPI active?
- Yes — Christopher Slack's NPI (1407593221) is active in the NPPES registry as of the last update on 2022-05-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.