Katheryn Reifer, MS
Katheryn Reifer, MS is a provider specialising in Speech-Language Pathologist in Phoenix, AZ, registered under NPI 1003396995.
Getting there
Here is what surrounds this office in Phoenix, based on OpenStreetMap data collected Sep 23, 2026. Parking is available about 0.27 mi away. The nearest transit stop is 737 ft away.
Getting here and what is nearby
Parking 235 ft ~1 min
Transit 547 ft ~3 min
Transit 564 ft ~3 min
Transit 737 ft ~3 min
Parking 0.26 mi ~6 min
Parking 0.27 mi ~6 min
Restaurant Del Taco 0.39 mi ~8 min
4101 North 67th Avenue, Phoenix 85033
Gas station 76 0.44 mi ~9 min
6702 West Indian School Road, Phoenix 85033
Restaurant El Pollo Loco 0.44 mi ~9 min
6535 West Indian School Road, Phoenix 85033
Convenience K-Market 0.46 mi ~10 min
6702 West Indian School Road, Phoenix 85033
Gas station Fry's Fuel 0.48 mi ~10 min
6615 North 67th Avenue, Phoenix 85033
Restaurant Filibertos 0.48 mi ~10 min
4030 North 67th Avenue, Phoenix 85033
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| TSLP11380 | AZ | Speech-Language Pathologist primary |
This provider holds licence TSLP11380 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 Speech-Language Pathologist covers
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing. NUCC Health Care Provider Taxonomy, code 235Z00000X
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 | 1003396995 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 20, 2018 |
| Last updated | Aug 20, 2018 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | MS |
| Practice address |
4417 N 66TH AVE Phoenix, AZ 85033 (623) 691-2548 |
| Mailing address |
5151 N 16TH ST APT 2013 Phoenix, AZ 85016 |
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 | 0 | 0 | 3 | 3 | 9 | 6 | 9 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 9 | 3 | 9 | 9 |
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.