Derek Ball, PHD
NPI 1770661795 · Marriage & Family Therapist · Rock Island, IL
Derek Ball, PHD is a Marriage & Family Therapist provider in Rock Island, IL (NPI 1770661795).
Provider details
- NPI number
- 1770661795
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- No
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
19 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2006-11-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Derek Ball's NPI number?
- Derek Ball's National Provider Identifier (NPI) is 1770661795, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Derek Ball's specialty?
- Derek Ball is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Derek Ball located?
- Derek Ball's practice location on file with NPPES is 1800 3rd Ave, Rock Island, IL 61201-8000.
- What is Derek Ball's phone number?
- The practice phone number listed in the NPPES registry for Derek Ball is (309) 786-4491.
- Is Derek Ball's NPI active?
- Yes — Derek Ball's NPI (1770661795) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.