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

Timothy Oneill, DO

Individual provider Anesthesiology Physician · NPI 1912996620

Timothy Oneill, DO is an Anesthesiology Physician in Muskegon, Michigan. Licensed in Michigan. Registered with an NPI since 2005.

Licensed in
MI
In the registry since
2005
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1700 Clinton St
Muskegon, MI 49442-5502
Phone: (231) 726-3511
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence TO010883 (MI)

Record details

NPI number1912996620
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedOctober 14, 2005
Last updated in NPPESFebruary 29, 2012
Mailing address550 W Western Ave, Ste B, Muskegon, MI 49440-1045

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