WILLIAM M KO MD
NPI 1629011762
Anesthesiology - Pain Medicine in Fullerton, CA

Q: What is William Ko's NPI number?

The NPI number for William Ko is 1629011762. It was assigned to this individual provider in the NPPES registry on June 14, 2006.

Q: What is William Ko's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.

Q: When was this NPI record last updated?

The NPPES record for William Ko was last updated on November 5, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 14, 2006PECOS EnrolledAccepts Medicare Assignment

100 E VALENCIA MESA DR, SUITE 310, FULLERTON, CA 92835(714) 446-5200(714) 446-5292 Get Directions Write a Review

NPPES record last updated: November 5, 2021. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Nov 5, 2021, Oct 19, 2020, Nov 7, 2018 (3 updates tracked since 2018).

On this page

About William M Ko Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM M KO MD (NPI 1629011762) is an individual pain medicine provider in Fullerton, California, licensed in California (A82916) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Southern California Keck School Of Medicine (2000).

NPPES Registry Identity

NPI1629011762

Entity TypeIndividualMale

Primary Taxonomy207LP2900X

Provider Legal NameWILLIAM M KOCredential: MD

Location Address100 E VALENCIA MESA DR, SUITE 310Fullerton, CA 92835-3813

Mailing Address100 E Valencia Mesa Dr Ste 310Fullerton, CA 92835-3800 · (714) 446-5200 · Fax (714) 449-4956

Phone(714) 446-5200

Fax(714) 446-5292

Sole ProprietorNo

Medical School CMSUniversity Of Southern California Keck School Of MedicineGraduated 2000

Enumeration DateJune 14, 2006

Last NPPES UpdateNovember 5, 20213 updates tracked since enumeration

NPPES CertifiedNovember 5, 2021

✔ NPI 1629011762 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiology · Pain MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207LP2900X

License✔ Licensed in CA · A82916

Definition

An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists.

Also ListedAnesthesiologyTaxonomy 207L00000X · License A82916 (CA)

100 E VALENCIA MESA DR, Fullerton, CA 92835

Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William M Ko Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5092714162

PECOS Enrollment IDI20061219000259

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 13

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

2,640 services152 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

283 services105 patients

Injection of substance into lower spine canal using imaging guidance 62323

This procedure involves injecting a substance into your lower spine canal, guided by real-time images. It's done to diagnose or treat various conditions. You may feel slight discomfort, but it's generally safe and can provide valuable information for your treatment plan.

120 services69 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

88 services60 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

60 services60 patients

Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level 64483

This procedure involves injecting a mix of numbing and anti-inflammatory medication into a specific nerve root in the lower back. It helps manage pain and reduce inflammation. The process is guided by imaging technology for precision.

50 services31 patients

Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level 64484

This procedure involves injecting an anesthetic or steroid drug into the sacral spine nerve root. It's done under imaging guidance to ensure accuracy. The process can be repeated for each additional level of the spine to help manage pain or inflammation.

48 services19 patients

Injection of substance into middle or upper spine canal using imaging guidance 62321

This procedure involves injecting a substance into your middle or upper spine canal. It's performed under imaging guidance to ensure accuracy. The substance can help diagnose or treat various conditions, providing relief from symptoms.

35 services24 patients

Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance 27096

This procedure involves injecting medicine into the joint where your lower spine meets your hip bone. Using special imaging technology, the doctor ensures the medicine is delivered accurately. This can help reduce pain and inflammation in that area.

27 services16 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

25 services25 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

23 services12 patients

Injection of lower or sacral spine facet joint using imaging guidance, single level 64493

This procedure involves injecting medication into the facet joint in your lower back or sacral spine. It's done under imaging guidance to ensure accuracy. The aim is to alleviate pain and inflammation. It's a safe, often effective method for managing spinal discomfort.

19 services15 patients

Injection of lower or sacral spine facet joint using imaging guidance, second level 64494

This procedure involves injecting medication into the facet joints of your lower or sacral spine to manage pain. Imaging guidance ensures accurate placement. It's the second level, meaning it's done on two different joint levels.

19 services15 patients

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ANDREW TIEN DUKE M.D.

Internal Medicine (Critical Care Medicine)

100 E VALENCIA MESA DR
FULLERTON, CA 92835

Orange County (714) 992-3969

BOWEN JIANG M.D.

Neurological Surgery

100 E VALENCIA MESA DR
FULLERTON, CA 92835

Orange County (714) 734-3120

CHIKA KAWASHIMA

Physician Assistant

100 E VALENCIA MESA DR, SUITE 310
FULLERTON, CA 92835

Orange County (714) 446-5527

MONICA MARTYN RD

Dietitian, Registered

100 E VALENCIA MESA DR, SUITE 111
FULLERTON, CA 92835

Orange County (714) 446-5369

BENJAMIN ROTHMAN A PHARMACY CORPORATION

Pharmacy (Community/Retail Pharmacy)

100 E VALENCIA MESA DR, SUITE 106
FULLERTON, CA 92835

Orange County (714) 992-1234

EUGENE BYUN MD

Internal Medicine (Interventional Cardiology)

100 E VALENCIA MESA DR, SUITE 206
FULLERTON, CA 92835

Orange County (714) 446-5050

RENEE M. SODERQUIST RD

Dietitian, Registered

100 E VALENCIA MESA DR, SUITE 105
FULLERTON, CA 92835

Orange County (714) 446-5640

DENNIS WAYNE BRILEY PA

Physician Assistant (Surgical)

100 E VALENCIA MESA DR, SUITE 105
FULLERTON, CA 92835

Orange County (714) 446-5200

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Ko's NPI number?

The NPI number for William Ko is 1629011762. It was assigned to this individual provider in the NPPES registry on June 14, 2006.

Where is William Ko located?

William Ko practices at 100 E Valencia Mesa Dr Suite 310, Fullerton, CA 92835. The listed phone number is (714) 446-5200.

What is William Ko's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.

Is William Ko enrolled in Medicare?

Yes. William Ko is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for William Ko was last updated on November 5, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.