Sonia Mccarthy, RD, LDN
Sonia Mccarthy, RD, LDN is an Obesity and Weight Management Nutrition Registered Dietitian in Milford, MA, registered under NPI 1003699224.
Getting there
Here is what surrounds this office in Milford, based on OpenStreetMap data collected Sep 26, 2026. Parking is available about 265 ft away. The nearest transit stop is 0.44 mi away, served by Main St at Police Station.
Getting here and what is nearby
Parking 165 ft ~1 min
Parking 222 ft ~1 min
Parking 265 ft ~2 min
Transit Milford Regional Medical Center 624 ft ~3 min
Restaurant Domino's 0.34 mi ~7 min
Convenience Sam's Energy 0.38 mi ~8 min
267 Main Street
Gas station Gulf 0.39 mi ~8 min
267 Main Street
Grocery Shaw's 0.41 mi ~9 min
Transit Milford Shaws/Walgreens 0.43 mi ~9 min
Transit Main St at Police Station 0.44 mi ~9 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 |
|---|---|---|
| 3794 | MA | Obesity and Weight Management Nutrition… primary |
This provider holds licence 3794 issued in MA. 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 Nutrition, Obesity and Weight Management covers
An individual who is a Board Certified Specialist for Obesity and Weight Management and educates, supports, and advocates for patients and clients to understand and manage their weight and associated risks through the use of nutritional, behavioral health, medical, surgical, pharmacotherapeutic, and exercise and physical activity interventions. NUCC Health Care Provider Taxonomy, code 133VN1201X
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 | 1003699224 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 14, 2023 |
| Last updated | Aug 14, 2023 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | RD, LDN |
| Practice address |
14 PROSPECT ST Milford, MA 01757 (508) 473-1190 |
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 | 6 | 9 | 9 | 2 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 9 | 9 | 2 | 4 |
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.