CHRISTOPHER TIN-SHU LOH (MD) – Diagnostic Radiology Physician, NPI 1720044183
Diagnostic Radiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
989 DIAGNOSTIC RADIOLOGY in AZ
Provider Addresses for CHRISTOPHER TIN-SHU LOH (MD)
2400 S Avenue A
Yuma, AZ 853647170
Phone: (928) 336-1759
Type: Location
850, West La Veta Avenue, Orange, Orange County, California, 92868, United States
ORANGE, CA 928684218
Phone: (714) 560-4450
Fax: (714) 560-4455
Type: Mailing
Providence Saint John's Health Center, 2121, Santa Monica Boulevard, Santa Monica, Los Angeles County, California, 90404, United States
SANTA MONICA, CA 904042303
Phone: (310) 829-5511
Fax: (310) 582-7495
Type: Location
1140 W La Veta Ave Ste 850
Orange, CA 928684218
Phone: (714) 560-4450
Fax: (714) 560-4455
Type: Location
101 The City Dr S
Orange, CA 928683201
Phone: (714) 456-8888
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 8 Open Payments records for all available years, with a total value of $553.
Total Amount is formed as General ($553) + Research ($0) + Ownership ($0) = $553.
Last reported payment date: 2024-09-22 • Largest payer in this snapshot: Sirtex Medical Inc ($193).
Total Amount
$553
General + Research + Ownership
Payments
8
Total payment records
General Amount
$553
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-22
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Sirtex Medical Inc | $193 |
| Becton, Dickinson and Company | $174 |
| Imperative Care, Inc | $85 |
| Inari Medical, Inc. | $81 |
| ARGON MEDICAL DEVICES, INC. | $20 |
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: 2025-04-04
PECOS data refreshed: 2026-06-15
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20040701001478 | I | Diagnostic Radiology | CA | TBD |
| I20200602001271 | I | Diagnostic Radiology | ND | TBD |
| I20250404001047 | I | Interventional Radiology | AZ | 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 |
|---|---|---|---|---|
| 99152 | Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 42 | 36 | $0 |
| 32555 | Aspiration of fluid from chest cavity using imaging guidance | 31 | 22 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 27 | 18 | $0 |
| 36573 | Insertion of tube for infusion with imaging guidance and review by radiologist, patient 5 years or older | 14 | 11 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 13 | 13 | $0 |
Insurance plans in this area (ZIP 85364)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| DIAGNOSTIC RADIOLOGY | CA | 36556 | Insertion of central venous catheter for infusion, patient 5 years or older | 23 | 22 |
| DIAGNOSTIC RADIOLOGY | CA | 76942 | Ultrasonic guidance imaging supervision and interpretation for insertion of needle | 30 | 29 |
| DIAGNOSTIC RADIOLOGY | CA | 77012 | Radiological supervision and interpretation of CT guidance for needle insertion | 41 | 39 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | ND | |
| A N E S T H E S I O L O G Y | IN | |
| - | ND | |
| H O S P I T A L I S T | ND | |
| Certified Registered Nurse Anesthetist (Crna) | ND | |
| N E P H R O L O G Y | KY | |
| Cardiovascular Disease (Cardiology), Cardiac Electrophysiology | RI | |
| - | NY | |
| - | ND | |
| Internal Medicine, Hospitalist | NC |
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