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

Michael B. Lennon, MD

Individual provider Hospitalist Physician · NPI 1093893596

Michael B. Lennon, MD is a Hospitalist Physician in Petaluma, California. Licensed in California. Registered with an NPI since 2006.

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.

See every abbreviation used in this directory →

Practice location Address checks out

412 Oak St
Petaluma, CA 94952-2709
Phone: (707) 953-6587
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G44033 (CA)
Hospitalist Physician Taxonomy 208M00000X · Licence G44033 (CA)

Record details

NPI number1093893596
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 1, 2006
Last updated in NPPESMarch 21, 2014
Mailing address412 Oak St, Petaluma, CA 94952-2709