Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Stephen R Dieker Jr., MD

Individual provider Anesthesiology Physician · NPI 1174731004

Dr. Stephen R Dieker Jr., MD practises Anesthesiology in Eureka, California. Qualified in 2005, 21 years ago. Practices with Providence Medical Foundation, a 1,465-clinician group and accepts Medicare assignment. Licensed in California and Missouri.

Years since qualifying
21
Licensed in
CA, MO
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2752 Harrison Ave Ste A
Eureka, CA 95501-4738
Phone: (707) 268-0190
Fax: (707) 445-3076
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence A116949 (CA)
Anesthesiology Physician Taxonomy 207L00000X · Licence 2007016507 (MO)

Record details

NPI number1174731004
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 21, 2007
Last updated in NPPESOctober 21, 2021
Certification dateOctober 21, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Group practice Providence Medical Foundation — 1465 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients308
Services billed 631 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Centura Health-Penrose St Francis Health Services Hospital · Colorado Springs, CO
  • Mad River Community Hospital Hospital · Arcata, CA
  • Providence St Joseph Hospital Hospital · Eureka, CA

Colleagues at Providence Medical Foundation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1465 clinicians in the practice; 12 are shown here.

Other providers in Eureka