Registry data as of Aug 27, 2026

William Clark, DDS, MD

Oral and Maxillofacial Pathology Dentistry · Oxnard, CA

William Clark, DDS, MD is an oral and maxillofacial pathology dentistry with a practice address in Oxnard, California, and NPI 1487740007, issued on Oct 4, 2006. Check the license (California 39247, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1487740007
Name
William Clark
Credential
DDS, MD
Primary taxonomy
Oral and Maxillofacial Pathology Dentistry 1223P0106X
License number
39247 CA
Self-reported in NPPES; status is on the state search
Practice location
1801 Solar Dr Ste 100, Oxnard, CA 93030
Phone
(805) 983-3131
Enumerated
Oct 4, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1801 Solar Dr Ste 100

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Neal Cole, DDSOral and Maxillofacial Pathology Dentistry1740387752

Verify William Clark in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 39247
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

82% more Medicare Part D claims than the average oral and maxillofacial pathology dentistry in 2024

543 Medicare Part D claims for 258 beneficiaries, against an average of 299 among the 285 providers of this specialty who prescribed in Part D. 268 claims were for opioids.

  1. William Clark543
  2. Specialty average299

Most prescribed

  1. Hydrocodone-Acetaminophen239 claims
  2. Amoxicillin198 claims
  3. Clindamycin Hcl33 claims
  4. Chlorhexidine Gluconate20 claims
  5. Oxycodone-Acetaminophen19 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: $30.99

1 payment, mostly entertainment; the largest payer was Keystone Dental Inc.. The 153 providers of this specialty with any payment received $3,769.57 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Clark$30.99
  2. Specialty average$3,769.57

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Oral and Maxillofacial Pathology Dentistry providers in California

There are 77 oral and maxillofacial pathology dentistry records in California.

Other oral and maxillofacial pathology dentistry records in California

  1. Robert Allen, D.D.S.Petaluma, CA1356425979
  2. Anthony Beech, DDSSunnyvale, CA1720202633
  3. Mark Bennett, D.D.S.Greenbrae, CA1558401281
  4. Rick Berrios, D.D.S.Huntington Beach, CA1053534180
  5. Brian Blatter, DDSConcord, CA1750363602
  6. Paul Bohman, DDSVentura, CA1336271170
  7. Audrey Boros, DDSLos Angeles, CA1760794572
  8. Russell Christensen, DDSLos Angeles, CA1821052796
  9. Alan Chun, D.D.S., M.D.San Ramon, CA1013008598
  10. Glen Clark, DDSLos Angeles, CA1740339233

Common questions

What is William Clark, DDS, MD's NPI number?

William Clark, DDS, MD's National Provider Identifier (NPI) is 1487740007, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Clark, DDS, MD located?

The NPPES record lists a practice address at 1801 Solar Dr Ste 100, Oxnard, CA, 93030. Phone: (805) 983-3131. Providers update this record themselves, so call before visiting.

How can I verify William Clark, DDS, MD's license?

NPPES lists California license number 39247, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does William Clark, DDS, MD prescribe under Medicare Part D?

In 2024, William Clark, DDS, MD had 543 Medicare Part D claims for 258 beneficiaries; the average among oral and maxillofacial pathology dentistry prescribers was 299. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.