John Siebel, MD

Addiction Medicine · Internal Medicine · Oncology

19+ years in practiceNPI: 1780741306Licensed in CALicensed in ID

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Credentials & Recognition

Specialties

Addiction MedicineInternal MedicineOncology

NPI sub-specialties

Internal Medicine, Hematology & Oncology207RH0003X

Internal Medicine, Medical Oncology207RX0202X

Practice Signals

Editorial signals beyond credentials. Patient transparency over opacity. See methodology.

Mid-Level (PA/NP) Use

Doctor-led visits

Years in Practice

19+ years

Estimated from NPI enumeration date

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Frequently Asked Questions about Dr. John Siebel, MD

Where does Dr. John Siebel, MD practice?+
Dr. John Siebel, MD practices in California, CA. 218 DE ANZA BLVD SAN MATEO, CA 944023913.
What is Dr. John Siebel, MD's phone number?+
Dr. John Siebel, MD's practice phone is 650-341-9131. Office contact information is verified on the PBCMMG profile.
What does Dr. John Siebel, MD specialize in?+
Dr. John Siebel, MD's primary specialty is Addiction Medicine, with additional focus on Internal Medicine, Oncology.
Is Dr. John Siebel, MD board certified?+
Board certification status for Dr. John Siebel, 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 Siebel, MD been practicing?+
Dr. John Siebel, MD has been in active practice for 19+ years, based on NPI enumeration and state licensing records.
What is Dr. John Siebel, MD's NPI number?+
Dr. John Siebel, MD's National Provider Identifier (NPI) is 1780741306, 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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