CHAU TON-THAT,D.O.,INC. – Psychiatry Physician, NPI 1962525006
Psychiatry Physician
Main info
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for CHAU TON-THAT,D.O.,INC.
6B Liberty
Suite 115
Aliso Viejo, CA 926565832
Phone: (949) 699-3445
Fax: (949) 218-8173
Type: Location
9533 BOLSA AVE
WESTMINSTER, CA 926835904
Phone: (714) 531-8720
Fax: (714) 531-5794
Type: Location
4131 COSTERO RISCO
SAN CLEMENTE, CA 926736408
Phone: (949) 584-4034
Fax: (949) 218-8173
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2007-10-17
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| O20071017000859 | O | Clinic/Group Practice | CA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 92656)
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