Dennis Garrett Gruwell, M.D.
Occupational Medicine Physician · Hahnville, LA
Dennis Garrett Gruwell, M.D. is an occupational medicine physician with a practice address in Hahnville, Louisiana, and NPI 1932247715, issued on Feb 2, 2007. Check the license (Louisiana 08024R, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Dennis Garrett Gruwell
- Credential
- M.D.
- Primary taxonomy
- Occupational Medicine Physician 2083X0100X
- License number
- 08024R LA
Self-reported in NPPES; status is on the state search - Practice location
- Dow Chemical Highway 3142, Hahnville, LA 70057
- Phone
- (985) 783-4590
- Enumerated
- Feb 2, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Verify Dennis Garrett Gruwell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license 08024RCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1 occupational medicine physician records list a practice address in Hahnville
They are 1 of the 17 NPPES records with a practice address in Hahnville, and 19 occupational medicine physician records in Louisiana. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other occupational medicine physician records in Louisiana
- Olawunmi Akinsilo, MD, MSHarahan, LA1003433616
- Mark Boquet, MD, MPH, MSMorgan City, LA1467587790
- Brian Bourgeois, M.D.Gretna, LA1023191244
- Melvin Bourgeois, MDMorgan City, LA1154321297
- Ray BoyerLafayette, LA1538336011
- John Burgess, M.D.Baton Rouge, LA1326024613
- James Dossey, MDBossier City, LA1790859031
- Paul Gaillot, RNNew Orleans, LA1568621258
- Barbara Gibson, M.D.Plaquemine, LA1588708408
- James Patterson, M.D.New Orleans, LA1174670855
Common questions
What is Dennis Garrett Gruwell, M.D.'s NPI number?
Dennis Garrett Gruwell, M.D.'s National Provider Identifier (NPI) is 1932247715, issued on Feb 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Dennis Garrett Gruwell, M.D. located?
The NPPES record lists a practice address at Dow Chemical Highway 3142, Hahnville, LA, 70057. Phone: (985) 783-4590. Providers update this record themselves, so call before visiting.
How can I verify Dennis Garrett Gruwell, M.D.'s license?
NPPES lists Louisiana license number 08024R, as entered by the provider. Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.