NPPES file of Aug 9, 2026

Oc Emergency Physicians in Tustin, CA

This organization bills under NPI 1124902739, an organization record issued on Aug 5, 2025 with the primary taxonomy Emergency Medicine Physician. Each clinician who works there has their own NPI and license.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Organization recordNPPES, Aug 2026
1124902739
Legal name
Oc Emergency Physicians
Entity
Type 2 · organization
Primary taxonomy
Emergency Medicine Physician 207P00000X
Practice location
14662 NEWPORT AVE, Tustin, CA 92780
Phone
714-619-7700
Mailing address
Woodland Hills, CA
Enumerated
Aug 5, 2025
Record updated
Oct 24, 2025
Authorized official
Owner (title as filed)
Public record from the NPPES NPI Registry (open it on CMS). An NPI identifies who bills; it is not a facility license.

13 clinicians CMS lists with Oc Emergency Physicians in Tustin

  1. Katherine Au Hargraves, MDEmergency Medicine Physician1750310967
  2. Steven Chen, MDEmergency Medicine Physician1386201259
  3. Alexander Flores, MDEmergency Medicine Physician1154063006
  4. Michelle Jhun, DOFamily Medicine Physician1477113926
  5. John Jiao, MDEmergency Medicine Physician1407419070
  6. Pingching Kwan, MDEmergency Medicine Physician1174757553
  7. David Lin, MDEmergency Medicine Physician1942241187
  8. Maria Lopez, MDEmergency Medicine Physician1134162290
  9. Maria Montoya, MDEmergency Medicine Physician1528002458
  10. Carol TangEmergency Medicine Physician1578182580
  11. David Thomas, MDEmergency Medicine Physician1083705628
  12. Viet Vuong, DOEmergency Medicine Physician1356695621
  13. Allen Zhi, MDEmergency Medicine Physician1508211707

Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.

Checking an organization

  1. Confirm the business with the California secretary of state.
  2. Check the HHS-OIG exclusion list for the organization.
  3. Verify each clinician on their own record and the state license search.

Common questions

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.