Physician Profile
Based in Fountain Valley, CA, Chiwai E. Chan, D.O. is listed in the NPI registry under interventional pain medicine. Chiwai graduated from College of Osteo Med of the Pacific at Pomona in 2000. Chiwai is also listed as specializing in pain medicine. Medicare claims data shows Chiwai provided 165,360 services to 2,174 patients. The services billed most often include injection, methylprednisolone acetate, 1 mg, low osmolar contrast material, 200-299 mg/ml iodine concentration, per ml, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
11160 WARNER AVE 417
Fountain Valley, CA 92708
Within Interventional Pain Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Abdominal pain
Chest and ribs
Complex pain
Elbow and arm
Foot and ankle
Head & face
Head and neck
Joints
Knee and leg
Muscle pain
Muscles
Nerve pain
Pelvic and groin
Shoulder and arm
Spine
Spine & nerve
Spine & pelvis
Surgical pain
Most searched procedures
Ablation
Diagnostics
Head & face
Implants
Infusion therapy
Injections
Muscle procedures
Nerve ablation
Nerve blocks
Neuromodulation
Regenerative
Regenerative medicine
Spine procedures
Sympathetic blocks
Targeted drug delivery
165,360 services · 2,174 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
742 | More than most peers in Interventional Pain Medicine |
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level | Procedure | 64483 |
194 | More often than most peers in Interventional Pain Medicine |
| Injection of trigger points, 3 or more muscles | Procedure | 20553 |
85 | More often than most peers in Interventional Pain Medicine |
| Injection of anesthetic and/or steroid drug into upper or middle spine nerve root using imaging guidance, single level | Procedure | 64479 |
41 | More often than most peers in Interventional Pain Medicine |
| Injection of lower or sacral spine facet joint using imaging guidance, second level | Procedure | 64494 |
32 | Less often than most peers in Interventional Pain Medicine |
| Injection of lower or sacral spine facet joint using imaging guidance, single level | Procedure | 64493 |
32 | Less often than most peers in Interventional Pain Medicine |
| Injection of anesthetic agent and/or steroid into lower back and leg nerve (sciatic nerve) | Procedure | 64445 |
17 | Less often than most peers in Interventional Pain Medicine |
| Injection of upper or middle spine facet joint using imaging guidance, second level | Procedure | 64491 |
16 | Less often than most peers in Interventional Pain Medicine |
| Injection of upper or middle spine facet joint using imaging guidance, single level | Procedure | 64490 |
16 | Less often than most peers in Interventional Pain Medicine |
| Fluoroscopic guidance for needle placement | Imaging | 77002 |
730 | More than most peers in Interventional Pain Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Chiwai E. Chan is an interventional pain medicine in Fountain Valley, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Chiwai E. Chan is listed at 11160 Warner Ave 417, Fountain Valley, CA 92708. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (714) 424-9300. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Chiwai E. Chan's National Provider Identifier is 1629051529. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Chiwai E. Chan attended College of Osteo Med of the Pacific at Pomona, graduating in 2000. This comes from the CMS National Downloadable File.
CMS public data
Chiwai E. Chan has 26 years experience. Calculated from a graduation year of 2000, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Chiwai E. Chan performs procedures including aspiration and/or injection of fluid from large joint, injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level and injection of trigger points, 3 or more muscles; reads or performs imaging such as fluoroscopic guidance for needle placement and ultrasonic guidance for needle placement; provides treatments such as maintenance of spinal canal or brain drug infusion pump by health care professional, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Chiwai E. Chan. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.