NPPES file of Aug 9, 2026

Mark S. Douangchak, O.D.

Optometrist · Santa Ana, CA

Mark S. Douangchak, O.D. is an optometrist with a practice address in Santa Ana, California, and NPI 1760762058, issued on Aug 18, 2011. Check the license (California 14138, 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, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1760762058
Name
Mark S. Douangchak
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
14138 CA
Self-reported in NPPES; status is on the state search
Practice location
2800 N Main St, Santa Ana, CA 92705
Phone
(714) 547-8194
Enumerated
Aug 18, 2011
Record last updated
Aug 18, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(714) 547-5626
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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8 nearest optometrist records → All 8,308 in California → Look up another NPI →

Also registered at 2800 N Main St

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

  1. Vida Arjomand, O.D.Optometrist1114011103
  2. Paul Chappelle, O.DOptometrist1326336835
  3. Gaylynn Deters, O.D.Optometrist1346695871
  4. Niloufar Hedayat, O.D.Optometrist1285898387
  5. Kara McEachern, O.D.Optometrist1346490679
  6. Alina Pham, O.D.Optometrist1871969097

Verify Mark S. Douangchak 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 14138    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

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Mark S. Douangchak among 8,308 optometrist records in California

Mark S. Douangchak, O.D. is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2011, is newer than 61% of them.

  • NPI issued2011 · 61% of these records are older, 36% newer
  • In a Medicare fileNo · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 43% of these records are
  • Record last updated2011 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in California

There are 8,308 optometrist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 8,308 in California → Every provider in Santa Ana → Optometrist nationwide →

The 8 optometrist records with the nearest ZIP codes

  1. Vida Arjomand, O.D.Santa Ana, CA 927051114011103
  2. Eric Bender, O.D.North Tustin, CA 927051184649519
  3. Alexander Bonakdar, O.DSanta Ana, CA 927051588668917
  4. Paul Chappelle, O.DSanta Ana, CA 927051326336835
  5. Bruce Grant, ODSanta Ana, CA 927051720126212
  6. Niloufar Hedayat, O.D.Santa Ana, CA 927051285898387
  7. Melvin Honda, O.D.Santa Ana, CA 927051801992490
  8. Janice Jackman, O.D.Santa Ana, CA 927051932250073

Common questions

What is Mark S. Douangchak, O.D.'s NPI number?

Mark S. Douangchak, O.D.'s National Provider Identifier (NPI) is 1760762058, issued on Aug 18, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Mark S. Douangchak, O.D. located?

The NPPES record lists a practice address at 2800 N Main St, Santa Ana, CA, 92705. Phone: (714) 547-8194. Providers update this record themselves, so call before visiting.

How can I verify Mark S. Douangchak, O.D.'s license?

NPPES lists California license number 14138, 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), file of Aug 9, 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 9, 2026.