DR. WARREN G ANSALDO (O.D.) – Optometrist, NPI 1134574783
Optometrist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,909 OPTOMETRY in CA
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Provider Addresses for DR. WARREN G ANSALDO (O.D.)
798 SAINT JAMES DR
CORONA, CA 928828829
Phone: (949) 689-4332
Type: Mailing
10957, Knoxville Way, Riverside, Riverside County, California, 92503, United States
RIVERSIDE, CA 925035289
Phone: (949) 689-4332
Type: Mailing
Katella Avenue, Stanton, Orange County, California, 92841, United States
STANTON, CA 906802805
Phone: (714) 895-4899
Type: Location
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: 2016-08-15
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 |
|---|---|---|---|---|
| I20160815002211 | I | Optometry | 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 92882)
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