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

Edit this profile

Physician Profile

Stephen R. Dieker, MD

Is this you? Edit this profile

At a glance

About Dr. Dieker

Based in Eureka, CA, Stephen R. Dieker, MD is listed in the NPI registry under anesthesiology. According to Medicare claims data, Stephen cared for 243 Medicare patients across 404 services. The services billed most often include critical care, first 30-74 minutes, insertion of artery tube for blood sampling or infusion through skin, and critical care, each additional 30 minutes. NPI 1174731004 identifies this record in the national registry.

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

Education & Training

Medical School Other Graduated: 2005

Specialty

Anesthesiology (Primary)

Credentials & Licensing

CA · Physician and Surgeon AMedical Board of California
No. 116949CurrentExpired Oct 31, 2026Since 2011
MO licenceAs reported to the NPI registry
No. 2007016507As reported
NPINational Provider Identifier
1174731004Issued 2007

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 does Dr. Dieker specialize in?

Dr. Dieker is an anesthesiologist in Eureka, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Anesthesiology”.

NPI registry

Where is Dr. Dieker located?

Dr. Dieker is listed at 2752 Harrison Ave Suite A, Eureka, CA 95501. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Dr. Dieker's phone number?

The number on file is (707) 268-0190. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Dr. Dieker's NPI number?

Dr. Dieker's National Provider Identifier is 1174731004. 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. Dieker go to medical school?

Dr. Dieker attended Other, graduating in 2005. This comes from the CMS National Downloadable File.

CMS public data

How long has Dr. Dieker been practicing?

Dr. Dieker has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.

CMS public data

What does Dr. Dieker do most often?

According to Medicare billing data, Dr. Dieker performs procedures including insertion of artery tube for blood sampling or infusion through skin and insertion of non-tunneled central venous tube for infusion; reads or performs imaging such as ultrasonic guidance for blood vessel access; provides treatments such as anesthesia for procedure on small and large bowel using an endoscope and anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.

Medicare claims

Has Dr. Dieker confirmed this information?

Not yet. This profile is built from public federal data and has not been confirmed by Dr. Dieker. 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