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

Charles R Howlin, OD

Individual provider Optometrist · NPI 1518950179

Charles R Howlin, OD is an Optometrist in Sioux Falls, South Dakota. Licensed in South Dakota. Registered with an NPI since 2005.

Licensed in
SD
In the registry since
2005
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

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Practice location Address checks out

5129 S Western Ave
Sioux Falls, SD 57108
Phone: (605) 332-2231
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 138 (SD)

Record details

NPI number1518950179
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedAugust 29, 2005
Last updated in NPPESAugust 13, 2008

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