IndividualActive
William Knoflicek, PH.D.
NPI 1629130075 · Psychologist · Sioux Falls, SD
William Knoflicek, PH.D. is a Psychologist provider in Sioux Falls, SD (NPI 1629130075).
Provider details
- NPI number
- 1629130075
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 461 (SD)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
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
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
4400 W 69th St
Ste. 500
Sioux Falls, SD 57108-8171
Phone: (605) 322-7580
Fax: (605) 322-7579
Street-level locationGet directions
Mailing address
2400 S. Minnesota Ave
Sioux Falls, SD 57105-3762
Registry dates
- Enumerated
- 2006-12-14
- Last updated
- 2015-02-18
Frequently asked questions
- What is William Knoflicek's NPI number?
- William Knoflicek's National Provider Identifier (NPI) is 1629130075, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Knoflicek's specialty?
- William Knoflicek is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is William Knoflicek located?
- William Knoflicek's practice location on file with NPPES is 4400 W 69th St, Sioux Falls, SD 57108-8171.
- What is William Knoflicek's phone number?
- The practice phone number listed in the NPPES registry for William Knoflicek is (605) 322-7580.
- Is William Knoflicek's NPI active?
- Yes — William Knoflicek's NPI (1629130075) is active in the NPPES registry as of the last update on 2015-02-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.