Dental
Western Dental Services, INC.
Western Dental Services, INC. was paid $4.85M by Medicaid between Jan 2018 and Dec 2024, across 34 billing codes. Its largest line is D0120, dental checkup, returning patient — 12% of everything it billed.
33Billing provider infoWESTERN DENTAL SERVICES, INC.
ANTIOCH, CA 94531
ANTIOCH, CA 94531
33aNPI1801169198assigned 02/16/2012
33bProvider typeDentist
28Total paid$4.85M
24GClaims111,849
24DCodes billed34
24AFirst – last monthJan 2018 – Dec 2024
Compared with peers
Next to other Dentist providers in California
Rank by total paid#101 of 2,314
Median peer was paid$185K
This provider vs. median26×
Peers share this provider's primary NPPES type and state. Size alone says nothing about billing quality: a big agency or a hospital system is expected to sit far above the median.
Auditor's notes
Automated statistical signals. Not evidence of fraud — how these are computed.
Entity ProliferationAuthorized official DIAZ, SILVIA controls 13+ related entities in our dataset. Read more
Box 24A · Dates of service
Paid by month
Paid that monthNov–Dec 2024: claims still arriving when the file was cut, so these months run low for every provider
By year, as a table
| Year | Claims | Paid | |
|---|---|---|---|
| 2018 | 19,242 | $696K | |
| 2019 | 21,002 | $888K | |
| 2020 | 14,059 | $545K | |
| 2021 | 18,152 | $734K | |
| 2022 | 14,797 | $709K | |
| 2023 | 13,171 | $703K | |
| 2024incomplete | 11,426 | $577K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| D0120 | Dental checkup, returning patientPeriodic oral evaluation - established patient | 12% | 11,157 | 11,131 | $579K |
| D0150 | Comprehensive oral evaluation - new or established patient | 12% | 9,055 | 9,019 | $566K |
| D7210 | Extraction, erupted tooth requiring removal of bone and/or sectioning of tooth | 8.7% | 3,543 | 1,867 | $420K |
| D1110 | Prophylaxis - adult | 7.9% | 4,451 | 4,440 | $383K |
| D4341 | 7.4% | 5,200 | 1,602 | $358K | |
| D0210 | Intraoral - complete series of radiographic images | 5.9% | 6,084 | 6,051 | $285K |
| D1120 | Dental cleaning, childProphylaxis - child | 5.7% | 7,730 | 7,714 | $278K |
| D2150 | Silver amalgam - two surfaces, primary or permanent | 5.2% | 3,754 | 2,165 | $251K |
| D0274 | Bitewings - four radiographic images | 4.8% | 11,034 | 11,001 | $233K |
| D8670 | Periodic orthodontic treatment visit | 4.6% | 816 | 807 | $224K |
| D2740 | Crown - porcelain/ceramic | 3.7% | 383 | 276 | $181K |
| D1351 | Sealant - per tooth | 3.5% | 6,270 | 1,395 | $172K |
22 more codes
| D4910 | 3.1% | 1,990 | $151K | |
| D0230 | Intraoral - periapical each additional radiographic image | 2.8% | 14,069 | $137K |
| D2140 | 2.4% | 2,145 | $116K | |
| D1208 | Topical application of fluoride, excluding varnish | 2.0% | 9,345 | $99K |
| D4342 | 1.4% | 1,597 | $67K | |
| D1206 | Topical application of fluoride varnish | 1.3% | 3,542 | $61K |
| D0330 | Panoramic radiographic image | 1.2% | 2,033 | $57K |
| D2160 | <1% | 593 | $47K | |
| D9910 | <1% | 696 | $41K | |
| D0140 | Limited oral evaluation - problem focused | <1% | 842 | $27K |
| D7140 | Extraction, erupted tooth or exposed root | <1% | 469 | $27K |
| D0350 | <1% | 2,215 | $21K | |
| D0272 | Bitewings - two radiographic images | <1% | 1,623 | $19K |
| D2392 | Resin-based composite - two surfaces, posterior, primary or permanent | <1% | 279 | $18K |
| D9230 | Inhalation of nitrous oxide / analgesia, anxiolysis | <1% | 381 | $15K |
| D9430 | <1% | 157 | $5K | |
| D9993 | <1% | 72 | $5K | |
| D1310 | <1% | 72 | $3K | |
| D2330 | <1% | 42 | $3K | |
| D2391 | Resin-based composite - one surface, posterior, primary or permanent | <1% | 32 | $2K |
| D0220 | Intraoral - periapical first radiographic image | <1% | 89 | $1K |
| D1999 | 0% | 89 | $0.00 |
Claims and beneficiary counts add up across code × month rows, so one patient seen every month counts many times. Rows with fewer than 12 claims are suppressed by HHS, so small lines can be missing.
From NPPES
Who's on the registration
Authorized officialDIAZ, SILVIA (PPO COORDINATOR)
| Provider | Location | Paid |
|---|---|---|
| Western Dental Services, INC | San Jose, CA | $5.23M |
| Western Dental Services, INC. | Santa Clara, CA | $2.86M |
| Western Dental Services, INC | Gilroy, CA | $1.73M |
| Western Dental Services, INC. | Livermore, CA | $1.52M |
| Western Dental Services, INC. | San Marcos, CA | $1.27M |
| Western Dental Services, INC | San Mateo, CA | $1.08M |
| Western Dental Services, INC | Napa, CA | $1.05M |
| Western Dental Services, INC. | National City, CA | $612K |
| Soumava Sen, DDS, P.C. | San Antonio, TX | $121K |
| Soumava Sen, DDS, P.C. | Euless, TX | $55K |
| Soumava Sen, DDS, P.C | Garland, TX | $52K |
| Soumava Sen, DDS, P.C. | Carrollton, TX | $23K |
| Western Dental of Arizona, INC. | Tempe, AZ | $48.01 |
Matched on the authorized-official name exactly as entered in NPPES. A common name can match unrelated people.