Are you Dr. Koon? This profile is yours to edit: update your address, phone, photo and services.

Edit this profile

Physician Profile

Sean E. Koon, MD

Is this you? Edit this profile

At a glance

About Dr. Koon

Sean E. Koon, MD is a healthcare provider in Fontana, CA specializing in addiction medicine. Sean trained at Loma Linda University School of Medicine, graduating in 1998. This provider record is associated with NPI 1285701128.

Factual summary compiled by Guide.md from public records; not written by this provider.

Education & Training

Specialty

Addiction Medicine (Primary)

Credentials & Licensing

CA · Physician and Surgeon AMedical Board of California
No. 70370CurrentExpires Nov 2027Since 1999
NPINational Provider Identifier
1285701128Issued 2006

Snapshot · verify with the board ↗

Medicare information

Accepts Medicare assignmentYes
Medicare opt-outNo
Can order and refer in MedicareYes

Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.

Common questions

What kind of doctor is Dr. Koon?

Dr. Koon is an addiction medicine in Fontana, CA. That is the designation recorded for this NPI in the federal registry.

NPI registry

What is Dr. Koon's address?

Dr. Koon is listed at 9961 Sierra Ave, Fontana, CA 92335. 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. Koon?

The number on file is (909) 427-3910. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Dr. Koon's NPI number?

Dr. Koon's National Provider Identifier is 1285701128. 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. Koon train?

Dr. Koon attended Loma Linda University School of Medicine, graduating in 1998. This comes from the CMS National Downloadable File.

CMS public data

How long has Dr. Koon been practicing?

Dr. Koon has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.

CMS public data

Has Dr. Koon confirmed this information?

Not yet. This profile is built from public federal data and has not been confirmed by Dr. Koon. If this is you, claiming it is free.

Guide.md

Guide.md listings do not constitute medical advice or an endorsement.

A GigHz company · Founder: Pouyan Golshani, MD