ANGELA EN-TZU CHEN (MD) – Surgery Physician, NPI 1720003791
Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,317 GENERAL SURGERY in CA
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Provider Addresses for ANGELA EN-TZU CHEN (MD)
12589, Wardell Court, Blue Hills, Saratoga, Santa Clara County, California, 95070, United States
SARATOGA, CA 950703701
Phone: (913) 226-1514
Type: Mailing
Santa Clara Valley Medical Center, 751, South Bascom Avenue, Buena Vista, San Jose, Santa Clara County, California, 95128, United States
GENERAL SURGERY DEPARTMENT
SAN JOSE, CA 951282604
Phone: (408) 885-5000
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 5 Open Payments records for all available years, with a total value of $2,691.
Total Amount is formed as General ($2,691) + Research ($0) + Ownership ($0) = $2,691.
Last reported payment date: 2024-11-12 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($2,545).
Total Amount
$2,691
General + Research + Ownership
Payments
5
Total payment records
General Amount
$2,691
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-12
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $2,545 |
| Janssen Pharmaceuticals, Inc | $146 |
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: 2006-10-25
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 |
|---|---|---|---|---|
| I20061025000645 | I | General Surgery | 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 43 | 28 | $0 |
Insurance plans in this area (ZIP 95070)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| Clinical Psychologist | CA | |
| Internal Medicine | CA | |
| Internal Medicine, Gastroenterology | CA | |
| - | CA | |
| Internal Medicine, Critical Care (Intensivists), Pulmonary Disease | CA | |
| Nurse Practitioner | CA | |
| Internal Medicine, Hospitalist | PA | |
| - | CA | |
| Certified Registered Nurse Anesthetist (Crna) | CA |
Reviews
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