Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Alexander John Ramirez, MD

Individual provider Internal Medicine Physician · NPI 1538266424

Dr. Alexander John Ramirez, MD is an Internal Medicine in Oakland, California. Qualified in 1999, 27 years ago. Practices with Sutter Bay Medical Foundation, a 3,762-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
27
Licensed in
CA
In the registry since
2006
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

400 34th St
Oakland, CA 94609-2816
Phone: (510) 869-6883
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence A74102 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A74102 (CA)

Record details

NPI number1538266424
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 20, 2006
Last updated in NPPESMarch 22, 2021
Certification dateMarch 22, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Sutter Bay Medical Foundation — 3762 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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