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

Dr. Gregory John Gruden, OD

Individual provider Optometrist · NPI 1407904634

Dr. Gregory John Gruden, OD is an Optometrist in Troy, Michigan. Licensed in Michigan. Registered with an NPI since 2007.

Licensed in
MI
In the registry since
2007
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

2800 W Big Beaver Rd Ste N-104
Troy, MI 48084-3206
Phone: (248) 649-6766
Fax: (248) 649-9513
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 4901003571 (MI)

Record details

NPI number1407904634
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedJanuary 5, 2007
Last updated in NPPESJuly 8, 2007
Mailing address1720 Northwood Blvd, Royal Oak, MI 48073-3805

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