Robert A. Johnson, MD
Hematology & Oncology Physician · Oncologist in Martinez, CA
Provider details
- Specialty
- Hematology & Oncology Physician
- Credentials
- MD
- NPI number
- 1083792659
Checked against the CMS National Provider Identifier registry on October 2, 2026.
About
Specialties
- Oncology
- Internal Medicine
Insurance
- Kaiser Permanente
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