Gregory Gruden, O.D.
Optometrist · Troy, MI
Gregory Gruden, O.D. is an optometrist with a practice address in Troy, Michigan, and NPI 1407904634, issued on Jan 5, 2007. Check the license (Michigan 4901003571, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory Gruden
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 4901003571 MI
Self-reported in NPPES; status is on the state search - Practice location
- 2800 W Big Beaver RD, Troy, MI 48084
- Phone
- (248) 649-6766
- Enumerated
- Jan 5, 2007
- Entity
- Type 1 · individual
Also registered at 2800 W Big Beaver RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cynthia Bryla, O.D.Corneal and Contact Management Optometrist1477696128
- Sabiha Habib, O.D.Optometrist1952458259
Verify Gregory Gruden in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 4901003571Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Industry payments in 2024: $364.07
8 payments, mostly food and beverage; the largest payer was Alcon Vision LLC. The 33,561 providers of this specialty with any payment received $749.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
44 optometrist records list a Troy practice address
They are 44 of the 3,809 NPPES records with a Troy practice address, and 1,935 optometrist records in Michigan.
All 44 in Troy → All 1,935 in Michigan → Every provider in Troy →
Other optometrist records in Michigan
- Brooke Abbaya, ODTroy, MI1962062968
- Richard Abbott, O.D.Traverse City, MI1295721520
- John Abdella, O.D.Flint, MI1487634929
- Hussein AbdulameerAnn Arbor, MI1386340032
- Shaina AbrahamAnn Arbor, MI1649845389
- Suzanne Acanne, O.D.Detroit, MI1093804692
- Thomas Adamczak, O.D.Whitehall, MI1083614911
- Brittany Adams, O.D.Southfield, MI1659754505
- Daniel Adams, ODImlay City, MI1194861310
- James Adams, O.D.Portage, MI1336137397
Common questions
What is Gregory Gruden, O.D.'s NPI number?
Gregory Gruden, O.D.'s National Provider Identifier (NPI) is 1407904634, issued on Jan 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Gruden, O.D. located?
The NPPES record lists a practice address at 2800 W Big Beaver RD, Troy, MI, 48084. Phone: (248) 649-6766. Providers update this record themselves, so call before visiting.
How can I verify Gregory Gruden, O.D.'s license?
NPPES lists Michigan license number 4901003571, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.