Shannon Kallsen, M.S.
Shannon Kallsen, M.S. is a provider specialising in Speech-Language Pathologist in Addison, TX, registered under NPI 1003308693.
Getting there
Here is what surrounds this office in Addison, based on OpenStreetMap data collected Sep 17, 2026. Parking is available about 216 ft away. There is EV charging 0.35 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 1,006 ft away, served by Addison @ Addison Cir - N - NS. If you arrive early, there is a coffee shop 0.35 mi away.
Getting here and what is nearby
Parking 129 ft ~1 min
Parking 141 ft ~1 min
Parking 216 ft ~1 min
Transit Addison @ Airport - N - NS 636 ft ~3 min
Transit Addison @ Airport - S - FS 671 ft ~3 min
Transit Addison @ Addison Cir - N - NS 1,006 ft ~4 min
Coffee Astoria Caffe and Wine Bar 0.21 mi ~5 min
15701 Quorum Drive, 75001
Mo-Th,Su 10:00-23:00; Fr-Sa 10:00-01:00
Restaurant Addison Sushi 0.26 mi ~6 min
Restaurant Ardy's Mediterranean Grill 0.26 mi ~6 min
15615 Quorum Drive, Addison 75001
Mo-We 11:00-21:00; Th-Su 11:00-22:00
Restaurant Antonio Ristorante 0.26 mi ~6 min
Coffee Java & Hopps 0.27 mi ~6 min
4970 Addison Circle, Addison 75001
Mo-Fr 07:00-18:00; Sa,Su 07:00-20:00
Convenience Addison Market 0.33 mi ~7 min
5049 Addison Circle, Addison 75001
Mo-Fr 07:00-22:00; Sa 08:00-22:00; PH closed; Su 08:00-21:00
Coffee Dolce Paradiso 0.35 mi ~8 min
5030 Addison Circle, Addison 75001
Tu-Th 08:00-15:00; Fr-Sa 08:00-17:00; Su 09:00-16:00
EV charging 0.35 mi ~7 min
Hotel Hampton Inn by Hilton Addison Dallas 0.46 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 |
|---|---|---|
| 114495 | TX | Speech-Language Pathologist primary |
This provider holds licence 114495 issued in TX. 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 | 1003308693 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 31, 2018 |
| Last updated | May 31, 2018 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | M.S. |
| Practice address |
15820 ADDISON RD Addison, TX 75001 (866) 919-3240 |
| Mailing address |
4409 TRAVIS ST APT C Dallas, TX 75205 |
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 | 0 | 8 | 6 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 0 | 7 | 6 | 9 |
Sum = 57 · next multiple of 10 = 60 · check digit = 3 · actual last digit = 3
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.