Registry data as of Aug 27, 2026

Mark Armstrong, DDS

Dentist · Morgan Hill, CA

Mark Armstrong, DDS is a dentist with a practice address in Morgan Hill, California, and NPI 1437460219, issued on Jun 28, 2010. Check the license (California 34047, 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 recordas of Aug 27, 2026
1437460219
Name
Mark Armstrong
Credential
DDS
Primary taxonomy
Dentist 122300000X
License number
34047 CA
Self-reported in NPPES; status is on the state search
Practice location
154 Cochrane Plz, Morgan Hill, CA 95037
Phone
(408) 778-4838
Enumerated
Jun 28, 2010
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 Armstrong 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 34047
    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 →

23 dentist records list a Morgan Hill practice address

They are 23 of the 626 NPPES records with a Morgan Hill practice address, and 14,906 dentist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

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 Armstrong, DDS's NPI number?

Mark Armstrong, DDS's National Provider Identifier (NPI) is 1437460219, issued on Jun 28, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Mark Armstrong, DDS located?

The NPPES record lists a practice address at 154 Cochrane Plz, Morgan Hill, CA, 95037. Phone: (408) 778-4838. Providers update this record themselves, so call before visiting.

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

NPPES lists California license number 34047, 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.

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.