Keith Karstens, PSYD
NPI 1366403677 · Clinical Psychologist · Sioux City, IA
Keith Karstens, PSYD is a Clinical Psychologist provider in Sioux City, IA (NPI 1366403677).
Provider details
- NPI number
- 1366403677
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSYD
- Sex
- Male
- Sole proprietor
- No
- License
- 00911 (IA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
20 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
- 2006-03-28
- Last updated
- 2007-12-21
Frequently asked questions
- What is Keith Karstens's NPI number?
- Keith Karstens's National Provider Identifier (NPI) is 1366403677, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Keith Karstens's specialty?
- Keith Karstens is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Keith Karstens located?
- Keith Karstens's practice location on file with NPPES is 600 4th St, Sioux City, IA 51101-1750.
- What is Keith Karstens's phone number?
- The practice phone number listed in the NPPES registry for Keith Karstens is (712) 234-0220.
- Is Keith Karstens's NPI active?
- Yes — Keith Karstens's NPI (1366403677) is active in the NPPES registry as of the last update on 2007-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.