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

Robert & William Hass Optometrists Professional Corp

Organization Optometrist · NPI 1396859773

Robert & William Hass Optometrists Professional Corp is an Optometrist in Owosso, Michigan. Licensed in Michigan. Registered with an NPI since 2006.

Licensed in
MI
In the registry since
2006
Specialties on file
3
What do these letters mean?
Corp — Corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

120 N Hickory St
Owosso, MI 48867-3016
Phone: (989) 725-5330
Fax: (989) 723-2303
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 4901002552 (MI)
Eyewear Supplier Taxonomy 332H00000X · Licence 4901002552 (MI)
Eyewear Supplier Taxonomy 332H00000X · Licence 4901002808 (MI)

Record details

NPI number1396859773
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official William Hass — President · (989) 725-5330
NPI enumeratedAugust 19, 2006
Last updated in NPPESOctober 24, 2017
Mailing address120 N Hickory St, P.O. Box 790, Owosso, MI 48867-3016

Other providers in Owosso