Matthew Somerville, DDS, MS
Periodontics · Westlake Village, CA
Matthew Somerville, DDS, MS is a periodontics with a practice address in Westlake Village, California, and NPI 1821341819, issued on Oct 16, 2012. Check the license (California 61864, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Matthew Somerville
- Credential
- DDS, MS
- Primary taxonomy
- Periodontics 1223P0300X
- License numbers
- 61864 CA
S4-112C NV
Self-reported in NPPES; status is on the state search - Practice location
- 1240 S Westlake Blvd, Westlake Village, CA 91361
- Phone
- (805) 373-2800
- Enumerated
- Oct 16, 2012
- Record last updated
- Jun 20, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest periodontics records → All 929 in California → Look up another NPI →
Also registered at 1240 S Westlake Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Bastien, MDSpecialist1053371096
- Randolph Capri, MDSpecialist1750340345
- Gary Carlson, MDSpecialist1144280181
- Judith Feldman, MDDermatology Physician1245295575
- Sherry Fieman, M.D.Neurology Physician1588751879
- Aurelia Gharzuzi Ciuica, FNP-BCFamily Nurse Practitioner1770935389
Verify Matthew Somerville in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 61864Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average periodontics in 2024
109 Medicare Part D claims for 38 beneficiaries, against an average of 277 among the 4,191 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Chlorhexidine Gluconate37 claims
- Amoxicillin35 claims
- Ibuprofen32 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $168.59
2 payments; by number, the most common kind was food and beverage; the largest payer was OraPharma, a division of Bausch Health US, LLC. The 2,966 providers of this specialty with any payment received $1,338.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Matthew Somerville among 929 periodontics records in California
Matthew Somerville, DDS, MS is one of 929 periodontics records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 75% of them.
- NPI issued2012 · 75% of these records are older, 22% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2019 · 78% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Periodontics providers in California
There are 929 periodontics records in California.
All 929 in California → Every provider in Westlake Village → Periodontics nationwide →
The 8 periodontics records with the nearest ZIP codes
- Adriana McGregor, D.D.SWestlake Village, CA 913611245439272
- Dana Carlton, DDS, MSWestlake Village, CA 913621013180439
- Kalid Hosn, DDSThousand Oaks, CA 913601447512280
- Kim ZussmanWestlake Village, CA 913621871625392
- Ori Levy, DDSWoodland Hills, CA 913641508020371
- Fariborz Matian, DDSWoodland Hills, CA 913641235287335
- Neema Bak, DDS, MS, PHDTarzana, CA 913561710386974
- Jaime Bulkacz, DDS PHDTarzana, CA 913561831165828
Common questions
What is Matthew Somerville, DDS, MS's NPI number?
Matthew Somerville, DDS, MS's National Provider Identifier (NPI) is 1821341819, issued on Oct 16, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Somerville, DDS, MS located?
The NPPES record lists a practice address at 1240 S Westlake Blvd, Westlake Village, CA, 91361. Phone: (805) 373-2800. Providers update this record themselves, so call before visiting.
How can I verify Matthew Somerville, DDS, MS's license?
NPPES lists California license number 61864, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Matthew Somerville, DDS, MS prescribe under Medicare Part D?
In 2024, Matthew Somerville, DDS, MS had 109 Medicare Part D claims for 38 beneficiaries; the average among periodontics prescribers was 277. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.