NPPES file of Aug 9, 2026

Mark Maddox, DDS

Dentist · Tuolumne, CA

Mark Maddox, DDS is a dentist with a practice address in Tuolumne, California, and NPI 1679732432, issued on Jun 6, 2008. Check the license (California 23849D, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1679732432
Name
Mark Maddox
Credential
DDS
Primary taxonomy
Dentist 122300000X
License number
23849D CA
Self-reported in NPPES; status is on the state search
Practice location
18400 Chestnut St, Tuolumne, CA 95379
Phone
(209) 928-4262
Enumerated
Jun 6, 2008
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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Verify Mark Maddox 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 23849D    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
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3 dentist records list a practice address in Tuolumne

They are 3 of the 27 NPPES records with a practice address in Tuolumne, and 14,729 dentist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 3 in Tuolumne → All 14,729 in California → Every provider in Tuolumne →

Other dentist records in California

  1. Chantelle AabediLos Angeles, CA1740895150
  2. Sohrab Aalam, DMDIrvine, CA1497431100
  3. Rick Aaronian, DDSFresno, CA1245452184
  4. Michael Aaronson, DDSSan Rafael, CA1992029722
  5. Autumn Abadesco, DDSLa Puente, CA1952857237
  6. Behzad Abadi, DMDDowney, CA1588879100
  7. Esfandiar Abadi, DDSSacramento, CA1992926448
  8. Bahareh AbadianSan Jose, CA1689169005
  9. Reza Abaei Tafreshi, DDSIrvine, CA1134656804
  10. Michael AbaianSherman Oaks, CA1023263167

Common questions

What is Mark Maddox, DDS's NPI number?

Mark Maddox, DDS's National Provider Identifier (NPI) is 1679732432, issued on Jun 6, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Mark Maddox, DDS located?

The NPPES record lists a practice address at 18400 Chestnut St, Tuolumne, CA, 95379. Phone: (209) 928-4262. Providers update this record themselves, so call before visiting.

How can I verify Mark Maddox, DDS's license?

NPPES lists California license number 23849D, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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 27, 2026.