Mark Donnelly
Mark Donnelly is a provider specialising in Speech-Language Pathologist in Sandy, UT, registered under NPI 1003554668.
Getting there
Here is what surrounds this office in Sandy, based on OpenStreetMap data collected Sep 12, 2026. Parking is available about 457 ft away. The nearest transit stop is 0.45 mi away, served by 700 E @ 9250 S. A pharmacy sits 0.43 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.47 mi away.
Getting here and what is nearby
Parking 253 ft ~1 min
Parking 262 ft ~1 min
Parking 457 ft ~2 min
Restaurant Ying's Thai-Sushi 0.35 mi ~7 min
Tu-Th 11:00-15:00, 17:00-21:00; Fr 11:00-15:00, 17:00-22:00; Sa 12:00-22:00; Su 12:00-21:00
Restaurant KFC 0.36 mi ~8 min
Restaurant Ginza 0.37 mi ~8 min
9460 Union Square, Sandy 84070
Convenience Maverik 0.39 mi ~8 min
Gas station Maverik 0.41 mi ~9 min
Pharmacy Walgreens 0.43 mi ~9 min
9426 South 700 East, Sandy 84070
Transit 700 East @ 9373 South 0.44 mi ~9 min
Transit 9000 S @ 348 E 0.45 mi ~9 min
Transit 700 E @ 9250 S 0.45 mi ~10 min
Coffee Dutch Bros. Coffee 0.47 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
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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 | 1003554668 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 24, 2022 |
| Last updated | May 24, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Practice address |
9361 S 300 E Sandy, UT 84070 (801) 826-5000 |
| Mailing address |
2287 E HIGH MOUNTAIN DR Sandy, UT 84092 |
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 | 5 | 5 | 4 | 6 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 5 | 8 | 6 | 3 |
Sum = 52 · next multiple of 10 = 60 · check digit = 8 · actual last digit = 8
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.