Celia Sommer
Celia Sommer is a provider specialising in Periodontics in Ventura, CA, registered under NPI 1003339391.
Getting there
Here is what surrounds this office in Ventura, based on OpenStreetMap data collected Sep 19, 2026. Parking is available about 601 ft away. The nearest transit stop is 0.43 mi away, served by Ventura County Government Center ( Hill Rd/Thille St). A pharmacy sits 0.45 mi from the entrance (Ralphs), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.31 mi away.
Getting here and what is nearby
Coffee Peet's Coffee 170 ft ~1 min
Restaurant Chipotle 193 ft ~1 min
Parking 272 ft ~2 min
Parking 344 ft ~2 min
Gas station 76 420 ft ~2 min
Parking 601 ft ~3 min
Restaurant Wendy's 627 ft ~3 min
1401 South Victoria Avenue, Ventura 93003
07:00-21:00
Grocery Vons 926 ft ~4 min
Transit Ventura County Government Center 0.28 mi ~6 min
Coffee Cafeteria (Bistro 800 / Java Pier) 0.31 mi ~7 min
800 South Victoria Avenue, Ventura 93009
Transit 0.32 mi ~7 min
Pharmacy CVS Pharmacy 0.36 mi ~8 min
Restaurant El Pollo Loco 0.36 mi ~8 min
1722 South Victoria Avenue, Ventura 93003
Mo-Su 10:00-21:30
Pharmacy Walmart Pharmacy 0.38 mi ~8 min
1739 South Victoria Avenue, Ventura 93003
Mo-Su 07:00-23:00
Transit Ventura County Government Center ( Hill Rd/Thille St) 0.43 mi ~9 min
Pharmacy Ralphs 0.45 mi ~9 min
Grocery Ralphs 0.45 mi ~9 min
1776 South Victoria Avenue, Ventura 93003
Mo-Su 05:00-02:00
Grocery Trader Joe's 0.47 mi ~10 min
1795 South Victoria Avenue, Ventura 93003
Mo-Su 08:00-21:00
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 |
|---|---|---|
| 111149 | CA | Periodontics primary |
This provider holds licence 111149 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 Periodontics covers
That specialty of dentistry which encompasses the prevention, diagnosis and treatment of diseases of the supporting and surrounding tissues of the teeth or their substitutes and the maintenance of the health, function and esthetics of these structures and tissues. NUCC Health Care Provider Taxonomy, code 1223P0300X
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 | 1003339391 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 19, 2017 |
| Last updated | Mar 5, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
1190 S VICTORIA AVE STE 305 Ventura, CA 93003 (805) 644-9664 |
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 | 3 | 9 | 3 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 3 | 9 | 3 | 9 |
Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1
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.