DORIS CHAN (NP) – Nurse Practitioner, NPI 1063691004
Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
16,360 NURSE PRACTITIONER in CA
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Provider Addresses for DORIS CHAN (NP)
Westwood Boulevard, Westwood Village, Westwood, Los Angeles, Los Angeles County, California, 90024-3990, United States
LOS ANGELES, CA 900643236
Phone: (213) 807-6503
Type: Mailing
506 W VALLEY BLVD STE 100
SAN GABRIEL, CA 917765716
Phone: (626) 308-3800
Fax: (626) 308-1899
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 18 Open Payments records for all available years, with a total value of $1,629.
Total Amount is formed as General ($1,629) + Research ($0) + Ownership ($0) = $1,629.
Last reported payment date: 2024-08-28 • Largest payer in this snapshot: Boston Scientific Corporation ($418).
Total Amount
$1,629
General + Research + Ownership
Payments
18
Total payment records
General Amount
$1,629
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-08-28
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Boston Scientific Corporation | $418 |
| Medtronic, Inc. | $349 |
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | $153 |
| ABIOMED | $150 |
| Actelion Pharmaceuticals US, Inc. | $150 |
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: 2015-09-02
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 |
|---|---|---|---|---|
| I20150902002657 | 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 164 | 116 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 148 | 85 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 145 | 143 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 81 | 81 | $0 |
| 99441 | Telephone medical discussion with physician, 5-10 minutes | 21 | 21 | $0 |
Insurance plans in this area (ZIP 90064)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| Interventional Cardiology, Hospitalist, Internal Medicine | CA | |
| Nurse Practitioner | CA | |
| Nurse Practitioner | CA | |
| Nurse Practitioner | CA | |
| Vascular Surgery, Cardiac Surgery | CA | |
| Hospitalist, Internal Medicine, Cardiovascular Disease (Cardiology) | CT | |
| Nurse Practitioner | CA | |
| Thoracic Surgery | CA | |
| - | CA |
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