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

Dr. Rahel Teferi Ruiz

Individual provider Internal Medicine Physician · NPI 1821089129

Dr. Rahel Teferi Ruiz is an Internal Medicine in Castro Valley, California. Graduated from Harvard Medical School in 1996, 30 years ago. Practices with The West Oakland Health Council, a 24-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
30
Trained at
Harvard Medical School
Licensed in
CA
In the registry since
2005
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Practice location Address checks out

18675 Buren Pl
Castro Valley, CA 94552-5281
Phone: (510) 881-2192
Fax: (510) 363-8642
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A64304 (CA)

Record details

NPI number1821089129
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedNovember 4, 2005
Last updated in NPPESDecember 24, 2019
Certification dateDecember 24, 2019

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 1996 (30 years in practice)
Group practice The West Oakland Health Council — 24 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Castro Valley