Margaret Jones, CCC-SLP
Margaret Jones, CCC-SLP is a provider specialising in Speech-Language Pathologist in Darien, CT, registered under NPI 1003379504.
Getting there
Here is what surrounds this office in Darien, based on OpenStreetMap data collected Sep 22, 2026. Parking is available about 546 ft away. There is EV charging 0.34 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town.
Getting here and what is nearby
Parking 456 ft ~2 min
Parking 541 ft ~3 min
Parking 546 ft ~3 min
Gas station Mobil 0.26 mi ~6 min
Restaurant McDonald's 0.27 mi ~6 min
Restaurant Subway 0.28 mi ~6 min
I-95 Northbound, Darien 06820
Mo-Fr 07:00-23:00; Sa 07:30-23:00; Su 07:30-22:30
EV charging Tesla Supercharger 0.34 mi ~7 min
Restaurant BIRDCODE 0.44 mi ~9 min
151 Boston Post Road
Grocery Stop & Shop 0.45 mi ~10 min
25 Old Kings Highway North, Darien 06820
Mo-Sa 07:00-22:00; Su 07:00-21:00
Convenience Shell 0.50 mi ~11 min
805 Post Road, Darien 06820
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 |
|---|---|---|
| 005685 | CT | Speech-Language Pathologist primary |
This provider holds licence 005685 issued in CT. 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 | 1003379504 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 11, 2019 |
| Last updated | Apr 11, 2019 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | CCC-SLP |
| Practice address |
455 POST RD Darien, CT 06820 (203) 655-6464 |
| Mailing address |
455 POST RD STE 2 Darien, CT 06820 |
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 | 7 | 9 | 5 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 7 | 9 | 5 | 0 |
Sum = 56 · next multiple of 10 = 60 · check digit = 4 · actual last digit = 4
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.