Frederick Zeller, MD

Addiction Medicine · Internal Medicine · Pulmonology · Sleep Medicine

20+ years in practiceNPI: 1093804999Licensed in OHLicensed in MT

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Credentials & Recognition

Specialties

Addiction MedicineInternal MedicinePulmonologySleep Medicine

NPI sub-specialties

Internal Medicine, Critical Care Medicine207RC0200X

Internal Medicine, Pulmonary Disease207RP1001X

Internal Medicine, Pulmonary Disease207RP1001X

Internal Medicine, Sleep Medicine207RS0012X

Internal Medicine, Sleep Medicine207RS0012X

Practice Signals

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

Mid-Level (PA/NP) Use

Doctor-led visits

Years in Practice

20+ years

Estimated from NPI enumeration date

Featured in PBCMMG Rankings

#17

Top Sleep Medicine Doctors in Montana, 2026

Sleep Medicine · Montana · 2026

#48

Top Pulmonologists in Montana, 2026

Pulmonology · Montana · 2026

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Frequently Asked Questions about Dr. Frederick Zeller, MD

Where does Dr. Frederick Zeller, MD practice?+
Dr. Frederick Zeller, MD practices in Ohio, OH. 2900 12TH AVE N STE 500 BILLINGS, MT 591017506.
What is Dr. Frederick Zeller, MD's phone number?+
Dr. Frederick Zeller, MD's practice phone is 406-238-6800. Office contact information is verified on the PBCMMG profile.
What does Dr. Frederick Zeller, MD specialize in?+
Dr. Frederick Zeller, MD's primary specialty is Addiction Medicine, with additional focus on Internal Medicine, Pulmonology, Sleep Medicine.
Is Dr. Frederick Zeller, MD board certified?+
Board certification status for Dr. Frederick Zeller, 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. Frederick Zeller, MD been practicing?+
Dr. Frederick Zeller, MD has been in active practice for 20+ years, based on NPI enumeration and state licensing records.
What is Dr. Frederick Zeller, MD's NPI number?+
Dr. Frederick Zeller, MD's National Provider Identifier (NPI) is 1093804999, 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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