Robert Niklewicz, PT
Robert Niklewicz, PT is a Sports Physical Therapist in Napa, CA, registered under NPI 1144332875. This provider registers 5 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 1103 TRANCAS ST, Napa, CA 94558. 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 |
|---|---|---|
| 7874 | CA | Sports Physical Therapist primary |
| 7874 | CA | Physical Therapist |
| 7874 | CA | Ergonomics Physical Therapist |
| 7874 | CA | Geriatric Physical Therapist |
| 7874 | CA | Orthopedic Physical Therapist |
This provider holds licence 7874 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 Sports covers
A licensed physical therapist, including but not limited to an individual who is a Board Certified Specialist in Sports Physical Therapy, who has demonstrated specialized knowledge and skill in human anatomy and physiology, movement science, pathology and pathophysiology, medical and surgical intervention, and health and wellness, as well as rehabilitation/return to sports, management of acute injury/illness, medical and surgical consideration, injury prevention, and sports performance enhancement. NUCC Health Care Provider Taxonomy, code 2251S0007X
All registered taxonomy codes
This provider registers 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2251S0007X | Sports Physical Therapist Sports | 7874 | CA | primary |
| 225100000X | Physical Therapist | 7874 | CA | |
| 2251E1200X | Ergonomics Physical Therapist Ergonomics | 7874 | CA | |
| 2251G0304X | Geriatric Physical Therapist Geriatrics | 7874 | CA | |
| 2251X0800X | Orthopedic Physical Therapist Orthopedic | 7874 | CA |
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 | 1144332875 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 31, 2006 |
| Last updated | Sep 11, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | PT |
| Practice address |
1103 TRANCAS ST Napa, CA 94558 (707) 224-3131 Fax (707) 224-2356 |
| Mailing address |
1038 WOODSIDE DR Napa, CA 94558 |
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 | 1 | 4 | 4 | 3 | 3 | 2 | 8 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 8 | 4 | 6 | 3 | 4 | 8 | 5 |
Sum = 65 · next multiple of 10 = 70 · check digit = 5 · actual last digit = 5
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.