Nancy Ngo, CNMT
Nancy Ngo, CNMT is a provider specialising in Vascular Sonography Radiologic Technologist in Dorchester Center, MA, registered under NPI 1649367160. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 121 WILMINGTON AVE, Dorchester Center, MA 02124. 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
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 Vascular Sonography covers
A radiologic technologist who specializes in vascular sonography and is trained in the use of ultrasound equipment to image veins and arteries, which health care providers use to diagnose and treat various vascular conditions. NUCC Health Care Provider Taxonomy, code 2471V0105X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2471V0105X | Vascular Sonography Radiologic Technologist Vascular Sonography | — | MA | primary |
| 2471S1302X | Sonography Radiologic Technologist Sonography | — | MA |
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 | 1649367160 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 6, 2006 |
| Last updated | Sep 11, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | CNMT |
| Practice address |
121 WILMINGTON AVE Dorchester Center, MA 02124 (857) 205-0040 Fax (617) 822-1984 |
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 | 6 | 4 | 9 | 3 | 6 | 7 | 1 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 8 | 9 | 6 | 6 | 5 | 1 | 3 |
Sum = 70 · next multiple of 10 = 70 · check digit = 0 · actual last digit = 0
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.