Mary Marsters, RDCS
Mary Marsters, RDCS is a Sonography Specialist/Technologist Cardiovascular in Mashpee, MA, registered under NPI 1104053693.
Getting there
The practice address on file is 509 FALMOUTH RD, Mashpee, MA 02649. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 14223 | MA | Sonography Specialist/Technologist… primary |
This provider holds licence 14223 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 Sonography covers
A cardiovascular sonography technologist operates special equipment to create images and conduct tests of the cardiovascular system. They work with physicians who view the images and test results to assess and diagnose medical conditions. NUCC Health Care Provider Taxonomy, code 246XS1301X
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 | 1104053693 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 11, 2009 |
| Last updated | Jun 11, 2009 |
| Status | Active |
| Sole proprietor | No |
| Credential | RDCS |
| Practice address |
509 FALMOUTH RD Mashpee, MA 02649 (508) 477-6726 |
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 | 1 | 0 | 4 | 0 | 5 | 3 | 6 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 0 | 4 | 0 | 5 | 6 | 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.