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

Gregory J Withers MD Inc a Medical Corp

Organization Neurological Surgery Physician · NPI 1619020484

Gregory J Withers MD Inc a Medical Corp is a Neurological Surgery Physician in Arcadia, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.
Corp — Corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

301 W Huntington Dr Ste 407
Arcadia, CA 91007-3462
Phone: (626) 821-3440
Fax: (626) 821-0709
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurological Surgery Physician (primary) Taxonomy 207T00000X · Licence G27800 (CA)

Record details

NPI number1619020484
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Gregory Withers — President · (626) 821-3440
NPI enumeratedJanuary 18, 2007
Last updated in NPPESDecember 8, 2010
Mailing address301 W Huntington Dr, Suite 407, Arcadia, CA 91007-3462

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