NPI Portal NPI Lookup & Verification

Dr. Dennis John Ogrodowczyk, DO

Dr. Dennis John Ogrodowczyk is a Chiropractor provider (Chiropractor) practicing in Dunlap, TN, registered in the NPPES registry with NPI 1992811590 since 2006. The credential DO stands for Doctor of Osteopathic Medicine.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1992811590
Entity type Individual (Type 1)
Name Dr. Dennis John Ogrodowczyk
Credential DO
Sex Male
Practice address Dunlap, TN, 37327
Phone 4239493900
Fax 4239493912
Enumeration date 2006-08-23
Last updated in NPPES 2007-07-08

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
111N00000X Chiropractor Primary DC550 TN

DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
3673982 Medicaid TN
Copy-ready billing details
Provider: Dennis Ogrodowczyk, DO
NPI: 1992811590
Taxonomy: 111N00000X (Chiropractor)
Address: Dunlap, TN, 37327

Other providers at this practice address

NPI Name Type Specialty Location
1245319532 Donald Brennan Individual Chiropractor Dunlap, TN

Verify this record

Cross-check NPI 1992811590 against the authoritative CMS record: view Dr. Dennis John Ogrodowczyk on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

What specialty is Dennis Ogrodowczyk?
Dennis Ogrodowczyk is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.