John March
John March is a Speech-Language Assistant in Phoenix, AZ, registered under NPI 1003471681. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Phoenix, based on OpenStreetMap data collected Sep 8, 2026. Parking is available about 0.23 mi away. The nearest transit stop is 834 ft away. A pharmacy sits 0.33 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.25 mi away.
Getting here and what is nearby
Transit 499 ft ~2 min
Transit 10154 506 ft ~2 min
Coffee Coffee Zona 512 ft ~2 min
5202 North 7th Street, Phoenix 85014
Mo-Fr 06:30-15:00; Sa 07:30-17:00; Su 07:30-15:00
Coffee Provision 572 ft ~3 min
711 East Missouri Avenue, Phoenix 85014
Su-We 07:00-17:00; Th-Sa 07:00-22:00
Restaurant Pizza Heaven Bistro 738 ft ~3 min
5150 North 7th Street, Phoenix 85014
Mo-Th 10:30-21:00; Fr-Sa 10:30-22:00; Su 14:30-21:00
Restaurant Pita Jungle 756 ft ~3 min
5505 North 7th Street, Phoenix
Mo-Su 11:00-21:00
Transit 834 ft ~4 min
Restaurant Spinato's Pizzeria 882 ft ~4 min
Parking 1,015 ft ~4 min
Grocery Bashas' 0.22 mi ~5 min
5555 North 7th Street, Phoenix 85014
Mo-Sa 06:00-22:00; Su 06:00-21:00
Parking 0.23 mi ~5 min
Parking 0.23 mi ~5 min
Coffee Starbucks 0.25 mi ~6 min
Pharmacy Walgreens 0.33 mi ~7 min
710 East Camelback Road, Phoenix 85014
Convenience Camelback Chevron 0.40 mi ~9 min
701 East Camelback Road, Phoenix 85014
Gas station Camelback Chevron 0.40 mi ~8 min
701 East Camelback Road, Phoenix 85014
Convenience Circle K 0.49 mi ~10 min
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 |
|---|---|---|
| SLPA9163 | AZ | Speech-Language Assistant primary |
This provider holds licence SLPA9163 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 Assistant covers
Definition to come... NUCC Health Care Provider Taxonomy, code 2355S0801X
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 | 1003471681 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 8, 2019 |
| Last updated | May 8, 2019 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Practice address |
5314 N 7TH ST Phoenix, AZ 85014 (602) 277-5006 |
| Mailing address |
8001 E FAIRMOUNT AVE Scottsdale, AZ 85251 |
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 | 4 | 7 | 1 | 6 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 7 | 2 | 6 | 7 |
Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1
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.