PETER VUN CHEN (MD) – Radiation Oncology Physician, NPI 1720031800
Radiation Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
679 RADIATION ONCOLOGY in CA
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Provider Addresses for PETER VUN CHEN (MD)
Calle Pasadena, Asociación California, Sector 12, Villa El Salvador, Province of Lima, Lima Metropolitan Area, Lima, 15829, Peru
PASADENA, CA 911851562
Phone: (949) 263-8620
Fax: (949) 263-0473
Type: Mailing
Hoag Drive, Newport Heights, Newport Beach, Orange County, California, 92658, United States
CANCER CENTER
NEWPORT BEACH, CA 926634162
Phone: (949) 764-5528
Fax: (949) 764-8106
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $223.
Total Amount is formed as General ($223) + Research ($0) + Ownership ($0) = $223.
Last reported payment date: 2024-12-11 • Largest payer in this snapshot: Zap Surgical Systems, Inc. ($201).
Total Amount
$223
General + Research + Ownership
Payments
2
Total payment records
General Amount
$223
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-11
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Zap Surgical Systems, Inc. | $201 |
| Siemens Medical Solutions USA, Inc. | $22 |
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: 2004-07-01
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20040701001640 | I | Radiation Oncology | 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 |
|---|---|---|---|---|
| 77300 | Calculation of radiation therapy dose | 1,610 | 140 | $0 |
| 77014 | Ct guidance for insertion of radiation therapy fields | 917 | 133 | $0 |
| 77427 | Radiation treatment management, 5 treatment sessions | 294 | 110 | $0 |
| 77334 | Design and construction of complex radiation treatment device | 262 | 119 | $0 |
| 77338 | Design and construction of radiation treatment device for high precision radiation therapy | 183 | 75 | $0 |
Insurance plans in this area (ZIP 91185)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Radiation Oncology | CA | |
| Radiation Oncology | CA | |
| Radiation Oncology | CA | |
| Radiation Oncology | CA |
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