Carolyn Antes, R.D.C.S. (AE, PE)
Carolyn Antes, R.D.C.S. (AE, PE) is a Sonography Specialist/Technologist Cardiovascular in Carson, CA, registered under NPI 1003168659. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Carson, based on OpenStreetMap data collected Sep 9, 2026. Parking is available about 0.22 mi away. There is EV charging 0.49 mi from the office (Blink) — useful if you are driving in from out of town. If you arrive early, there is a coffee shop 0.46 mi away.
Getting here and what is nearby
Parking 844 ft ~4 min
Parking 901 ft ~4 min
EV charging Tesla Supercharger 0.20 mi ~4 min
Gas station 76 0.21 mi ~5 min
Restaurant Jack in the Box 0.21 mi ~5 min
Parking 0.22 mi ~5 min
Hotel DoubleTree 0.23 mi ~5 min
EV charging Tesla Supercharger 0.24 mi ~5 min
Hotel Rodeway Inn Carson - Los Angeles South 0.42 mi ~9 min
Hotel Motel 6 0.42 mi ~9 min
Coffee GREENDOOR Powered by Intelligentsia 0.46 mi ~10 min
Restaurant IHOP 0.47 mi ~10 min
Restaurant Domino's Pizza Carson 0.48 mi ~10 min
EV charging Blink 0.49 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 |
|---|---|---|
| 139536 | CA | Sonography Specialist/Technologist… primary |
This provider holds licence 139536 issued in CA. 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 | 1003168659 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 6, 2012 |
| Last updated | Oct 6, 2012 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | R.D.C.S. (AE, PE) |
| Practice address |
21311 S TROYTON LN Carson, CA 90745 (310) 487-1646 Fax (310) 693-9726 |
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 | 1 | 6 | 8 | 6 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 6 | 7 | 6 | 1 |
Sum = 51 · next multiple of 10 = 60 · check digit = 9 · actual last digit = 9
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.