Brian Thomas Barker, D.D.S., M.S.
Endodontics · Ventura, CA
Brian Thomas Barker, D.D.S., M.S. is an endodontics with a practice address in Ventura, California, and NPI 1154598175, issued on May 8, 2008. Check the license (California 55666, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Brian Thomas Barker
- Credential
- D.D.S., M.S.
- Primary taxonomy
- Endodontics 1223E0200X
- License numbers
- 55666 CA
DS037341 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1190 S Victoria Ave, Ventura, CA 93003
- Phone
- (805) 639-8801
- Enumerated
- May 8, 2008
- Record last updated
- Mar 31, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (805) 639-4077
- Entity
- Type 1 · individual
8 nearest endodontics records → All 1,018 in California → Look up another NPI →
Also registered at 1190 S Victoria Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jonathan Wong, DDSPeriodontics1508089335
Verify Brian Thomas Barker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 55666Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average endodontics in 2024
37 Medicare Part D claims for 28 beneficiaries, against an average of 121 among the 4,119 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin21 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: $35.71
1 payment: food and beverage; the largest payer was Align Technology, Inc. The 2,057 providers of this specialty with any payment received $49,739.86 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.
Brian Thomas Barker among 1,018 endodontics records in California
Brian Thomas Barker, D.D.S., M.S. is one of 1,018 endodontics records with a practice address in California. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 58% of them.
- NPI issued2008 · 58% of these records are older, 34% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2014 · 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 1223E0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endodontics providers in California
There are 1,018 endodontics records in California.
All 1,018 in California → Every provider in Ventura → Endodontics nationwide →
The 8 endodontics records with the nearest ZIP codes
- Edward Asdel, DDSVentura, CA 930031750585774
- Erin Duarte, D.D.SVentura, CA 930031396937587
- Timothy Jue, DDSVentura, CA 930031487732442
- Gerald Longhurst, D.D.S.Ventura, CA 930031952594228
- Dennis Longwill, DDSVentura, CA 930031104907195
- James Vogel, DDSVentura, CA 930031457413924
- Pedro Gonzalez, DMDVentura, CA 930041033377544
- Gregory Roda, D.D.S., M.S.Camarillo, CA 930101891843546
Common questions
What is Brian Thomas Barker, D.D.S., M.S.'s NPI number?
Brian Thomas Barker, D.D.S., M.S.'s National Provider Identifier (NPI) is 1154598175, issued on May 8, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Brian Thomas Barker, D.D.S., M.S. located?
The NPPES record lists a practice address at 1190 S Victoria Ave, Ventura, CA, 93003. Phone: (805) 639-8801. Providers update this record themselves, so call before visiting.
How can I verify Brian Thomas Barker, D.D.S., M.S.'s license?
NPPES lists California license number 55666, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Brian Thomas Barker, D.D.S., M.S. prescribe under Medicare Part D?
In 2024, Brian Thomas Barker, D.D.S., M.S. had 37 Medicare Part D claims for 28 beneficiaries; the average among endodontics prescribers was 121. 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.