Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Grant Charles O'Brien, DC

Individual provider Chiropractor · NPI 1851628283

Dr. Grant Charles O'Brien, DC is a Chiropractic in Neenah, Wisconsin. Qualified in 2009, 17 years ago. Practices with Align Chiropractic LLC, a 3-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
17
Licensed in
WI
In the registry since
2009
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

200 W Wisconsin Ave
Neenah, WI 54956-2502
Phone: (920) 720-6300
Fax: (920) 720-6315
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence 4582-12 (WI)

Record details

NPI number1851628283
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorNo
NPI enumeratedNovember 5, 2009
Last updated in NPPESFebruary 12, 2010

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCHIROPRACTIC
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Align Chiropractic Llc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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