ANNA TERESA MENDOZA TSAY (ANP-BC) – Adult Health Nurse Practitioner, NPI 1003058348
Adult Health Nurse Practitioner
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Profile Insights
NPPES metrics only — not quality of care.
16,353 NURSE PRACTITIONER in CA
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Provider Addresses for ANNA TERESA MENDOZA TSAY (ANP-BC)
393, Walnut Street, Pasadena, Los Angeles County, California, 91188, United States
PHR GROUP PROVIDER ENROLLMENT UNIT FL 3
PASADENA, CA 911880001
Phone: (877) 608-0044
Fax: (877) 514-0903
Type: Mailing
3913, York Boulevard, Eagle Rock, Los Angeles, Los Angeles County, California, 90065, United States
LOS ANGELES, CA 900653718
Phone: (323) 532-1900
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: 2009-08-18
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 |
|---|---|---|---|---|
| I20090818000600 | I | Nurse Practitioner | 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 91188)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| U R O L O G Y | OH | |
| Internal Medicine | CA | |
| Internal Medicine | CA | |
| Internal Medicine, Gastroenterology | CA | |
| Physician Assistant | CA | |
| Emergency Medicine | NC | |
| O P H T H A L M O L O G Y | CA | |
| Anesthesiology, Pain Management | NH | |
| Family Practice, Sports Medicine | CA | |
| Nurse Practitioner | CA |
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