Jason Von Stietz
Jason Von Stietz is an Exercise & Sports Psychologist in Torrance, CA, registered under NPI 1639995780. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 25500 HAWTHORNE BLVD STE 25500, Torrance, CA 90505. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 33061 | CA | Cognitive & Behavioral Psychologist |
| 33061 | CA | Clinical Psychologist |
| 33061 | CA | Exercise & Sports Psychologist primary |
This provider holds licence 33061 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Exercise & Sports covers
A psychologist with a proficiency in sports psychology that uses psychological knowledge and skills to address optimal performance and well-being of athletes, developmental and social aspects of sports participation, and systemic issues associated with sports settings and organizations. APA recognizes sport psychology as a proficiency acquired after a doctoral degree in one of the primary areas of psychology and licensure as a psychologist. This proficiency does not include those who have earned a doctoral degree in sport psychology but are not licensed psychologists. Sport Psychology interventions are designed to assist athletes and other sports participants (e.g., coaches, administrators, parents) from a wide array of settings, levels of competition, and ages, ranging from recreational youth participants to professional and Olympic athletes to master's level performers. NUCC Health Care Provider Taxonomy, code 103TE1100X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 103TB0200X | Cognitive & Behavioral Psychologist Cognitive & Behavioral | 33061 | CA | |
| 103TC0700X | Clinical Psychologist Clinical | 33061 | CA | |
| 103TE1100X | Exercise & Sports Psychologist Exercise & Sports | 33061 | CA | primary |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1639995780 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 22, 2024 |
| Last updated | Nov 22, 2024 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Practice address |
25500 HAWTHORNE BLVD STE 25500 Torrance, CA 90505 (310) 375-4855 |
| Mailing address |
1000 E 32ND ST APT B Signal Hill, CA 90755 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 6 | 3 | 9 | 9 | 9 | 5 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 6 | 9 | 9 | 9 | 1 | 7 | 7 |
Sum = 80 · next multiple of 10 = 80 · check digit = 0 · actual last digit = 0
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.