Antonia Krotzer, COTA/L
Antonia Krotzer, COTA/L is a Recreational Therapist Assistant in Litchfield Park, AZ, registered under NPI 1376160507.
Getting there
The practice address on file is 4870 N LITCHFIELD RD STE B101, Litchfield Park, AZ 85340. 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 |
|---|---|---|
| 006750 | AZ | Recreational Therapist Assistant primary |
This provider holds licence 006750 issued in AZ. 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 Recreational Therapist Assistant covers
Recreational Therapist Assistants work in support of or assistant to Recreational Therapists treating patients with disabilities, injuries, and illnesses. Recreational Therapist Assistants work in a variety of settings providing treatments using recreational activities, including games, sports, and crafts. NUCC Health Care Provider Taxonomy, code 226000000X
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 | 1376160507 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 3, 2020 |
| Last updated | Jul 3, 2020 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | COTA/L |
| Practice address |
4870 N LITCHFIELD RD STE B101 Litchfield Park, AZ 85340 (623) 935-6040 Fax (480) 553-9334 |
| Mailing address |
2601 W WINCHCOMB DR Phoenix, AZ 85023 |
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 | 3 | 7 | 6 | 1 | 6 | 0 | 5 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 3 | 5 | 6 | 2 | 6 | 0 | 5 | 0 |
Sum = 53 · next multiple of 10 = 60 · check digit = 7 · actual last digit = 7
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.