John Ruddy, MD
Addiction Medicine · Internal Medicine · Pulmonology
21+ years in practiceNPI: 1902890130Licensed in CA
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Credentials & Recognition
Specialties
Addiction MedicineInternal MedicinePulmonology
NPI sub-specialties
Internal Medicine, Pulmonary Disease207RP1001X
Practice Signals
Editorial signals beyond credentials. Patient transparency over opacity. See methodology.
Mid-Level (PA/NP) Use
Doctor-led visits
Google Reviews
5.0 / 5.0
7 reviews
Years in Practice
21+ years
Estimated from NPI enumeration date
Featured in PBCMMG Rankings
Other Addiction Medicine Doctors near California
View all →Frequently Asked Questions about Dr. John Ruddy, MD
Where does Dr. John Ruddy, MD practice?+
Dr. John Ruddy, MD practices in California, CA. 13939 E 14TH ST
SAN LEANDRO, CA 945782601.
What is Dr. John Ruddy, MD's phone number?+
Dr. John Ruddy, MD's practice phone is 510-263-3300. Office contact information is verified on the PBCMMG profile.
What does Dr. John Ruddy, MD specialize in?+
Dr. John Ruddy, MD's primary specialty is Addiction Medicine, with additional focus on Internal Medicine, Pulmonology.
Is Dr. John Ruddy, MD board certified?+
Board certification status for Dr. John Ruddy, MD has not been verified in the data sources PBCMMG uses (ABMS, state medical boards). The PBCMMG profile shows their current credential set.
How long has Dr. John Ruddy, MD been practicing?+
Dr. John Ruddy, MD has been in active practice for 21+ years, based on NPI enumeration and state licensing records.
What is Dr. John Ruddy, MD's NPI number?+
Dr. John Ruddy, MD's National Provider Identifier (NPI) is 1902890130, registered in the federal NPPES registry.
Profile maintained by Palm Beach County Medical Media Group, Inc. | Data verified from public registries (NPPES, ABMS, state medical boards). Methodology · Editorial Standards
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