Medicaid Provider SpendingClaims paid 2018–2024 · HHS public file
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Dental

Western Dental Services, INC

Western Dental Services, INC was paid $1.05M by Medicaid between Jan 2018 and Dec 2024, across 26 billing codes. Its largest line is D7210, Extraction, erupted tooth requiring removal of bone and/or sectioning of tooth — 22% of everything it billed.

33Billing provider infoWESTERN DENTAL SERVICES, INC
NAPA, CA 94558
33aNPI1710266887assigned 08/08/2011
33bProvider typeDentist
28Total paid$1.05M
24GClaims26,752
24DCodes billed26
24AFirst – last monthJan 2018 – Dec 2024
Compared with peers

Next to other Dentist providers in California

Rank by total paid#478 of 2,314
Median peer was paid$185K
This provider vs. median5.7×

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

$0$20K$40K2018201920202021202220232024
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
YearClaimsPaid
20187,483$255K
20195,637$213K
20203,674$149K
20213,755$174K
20223,245$146K
20231,125$38K
2024incomplete1,833$73K
Box 24 · Service lines

What it billed for

CodeServiceShareClaimsBene. recordsPaid
D7210 Extraction, erupted tooth requiring removal of bone and/or sectioning of tooth 22% 1,951 636 $231K
D0150 Comprehensive oral evaluation - new or established patient 15% 2,574 2,571 $161K
D0120 Dental checkup, returning patientPeriodic oral evaluation - established patient 15% 3,453 3,448 $158K
D0210 Intraoral - complete series of radiographic images 11% 2,504 2,500 $118K
D0230 Intraoral - periapical each additional radiographic image 7.0% 4,068 3,867 $73K
D1120 Dental cleaning, childProphylaxis - child 6.9% 2,267 2,262 $73K
D0274 Bitewings - four radiographic images 5.2% 2,671 2,664 $55K
D2392 Resin-based composite - two surfaces, posterior, primary or permanent 3.6% 574 301 $38K
D1208 Topical application of fluoride, excluding varnish 2.8% 2,841 2,836 $29K
D1110 Prophylaxis - adult 2.6% 312 312 $27K
D0330 Panoramic radiographic image 2.1% 1,099 1,090 $22K
D2391 Resin-based composite - one surface, posterior, primary or permanent 1.7% 328 195 $18K
14 more codes
D2393 Resin-based composite - three surfaces, posterior, primary or permanent 1.1% 142 $11K
D2330 <1% 100 $8K
D4341 <1% 91 $6K
D9230 Inhalation of nitrous oxide / analgesia, anxiolysis <1% 117 $4K
D0350 <1% 412 $3K
D4910 <1% 131 $3K
D8670 Periodic orthodontic treatment visit <1% 13 $3K
D9910 <1% 50 $2K
D7261 <1% 20 $2K
D0140 Limited oral evaluation - problem focused <1% 66 $2K
D0272 Bitewings - two radiographic images <1% 149 $2K
D1206 Topical application of fluoride varnish <1% 24 $316.00
D1330 0% 171 $0.00
D4921 0% 624 $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)
Same official

Other billing entities under DIAZ, SILVIA

Full network →
ProviderLocationPaid
Western Dental Services, INCSan Jose, CA$5.23M
Western Dental Services, INC.Antioch, CA$4.85M
Western Dental Services, INC.Santa Clara, CA$2.86M
Western Dental Services, INCGilroy, CA$1.73M
Western Dental Services, INC.Livermore, CA$1.52M
Western Dental Services, INC.San Marcos, CA$1.27M
Western Dental Services, INCSan Mateo, CA$1.08M
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.CGarland, 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.