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Edit this profileAt a glance
- 100 E Valencia Mesa Dr, Suite 310, Fullerton, CA 92835
About Dr. Ko
William M. Ko, MD practices interventional pain management in Fullerton, CA. William is a 2000 graduate of University of Southern California Keck School of Medicine. William is also listed as specializing in anesthesiology and anesthesiology — pain medicine. According to Medicare claims data, William cared for 603 Medicare patients across 3,437 services. The services billed most often include injection, triamcinolone acetonide, not otherwise specified, 10 mg, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and injection of substance into lower spine canal using imaging guidance. The provider's National Provider Identifier (NPI) is 1629011762.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (714) 446-5200
- Email not available
Practice Locations
100 E VALENCIA MESA DR SUITE 310
Fullerton, CA 92835
Procedures Most Often Billed to Medicare
3,437 services · 603 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of substance into lower spine canal using imaging guidance | Procedure | 62323 |
120 | More often than most peers in Interventional Pain Management |
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level | Procedure | 64483 |
50 | As often as other peers in Interventional Pain Management |
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level | Procedure | 64484 |
48 | More often than most peers in Interventional Pain Management |
| Injection of substance into middle or upper spine canal using imaging guidance | Procedure | 62321 |
35 | As often as other peers in Interventional Pain Management |
| Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance | Procedure | 27096 |
27 | As often as other peers in Interventional Pain Management |
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
23 | Less often than most peers in Interventional Pain Management |
| Injection of lower or sacral spine facet joint using imaging guidance, second level | Procedure | 64494 |
19 | Less often than most peers in Interventional Pain Management |
| Injection of lower or sacral spine facet joint using imaging guidance, single level | Procedure | 64493 |
19 | Less often than most peers in Interventional Pain Management |
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Drug given | J3301 |
2,640 | More than most peers in Interventional Pain Management |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
283 | As often as other peers in Interventional Pain Management |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other interventional pain managements in Fullerton 3
Same specialty, same city.
Trained at University of Southern California Keck School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 14 related providers in 2 groups
Class of 2000 at University of Southern California Keck School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of substance into lower spine canal using imaging guidance 6
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Ko?
Dr. Ko is an interventional pain management in Fullerton, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Dr. Ko's address?
Dr. Ko is listed at 100 E Valencia Mesa Dr Suite 310, Fullerton, CA 92835. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Ko?
The number on file is (714) 446-5200. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Ko's NPI number?
Dr. Ko's National Provider Identifier is 1629011762. 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
Where did Dr. Ko train?
Dr. Ko attended University of Southern California Keck School of Medicine, graduating in 2000. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Ko been practicing?
Dr. Ko has 26 years experience. Calculated from a graduation year of 2000, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Ko perform?
According to Medicare billing data, Dr. Ko performs procedures including injection of substance into lower spine canal using imaging guidance, injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level and injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Ko confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ko. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.