Brett Dennis Gerwin, M.D.
Brett Dennis Gerwin is a Ophthalmology Physician provider (Ophthalmology) practicing in Chattanooga, TN, registered in the NPPES registry with NPI 1306992003 since 2007. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1306992003 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Brett Dennis Gerwin |
| Credential | M.D. |
| Sex | Male |
| Practice address | Chattanooga, TN, 37403 |
| Phone | 4235212820 |
| Fax | 4236025594 |
| Enumeration date | 2007-01-26 |
| Last updated in NPPES | 2021-11-11 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207WX0107X | Retina Specialist (Ophthalmology) Physician | Secondary | 45994 | TN |
| 207W00000X | Ophthalmology Physician | Primary | 45994 | TN |
| 207W00000X | Ophthalmology Physician | Secondary | 26155 | AL |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1517997 | Medicaid | TN | — |
Copy-ready billing details
Provider: Brett Gerwin, M.D. NPI: 1306992003 Taxonomy: 207W00000X (Ophthalmology Physician) Address: Chattanooga, TN, 37403
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1306849849 | Daniel Herz | Individual | Pediatric Urology Physician | Chattanooga, TN |
| 1497750400 | Plaza Surgery, G.P. | Organization | Ambulatory Surgical Clinic/Center | Chattanooga, TN |
| 1518963990 | Adel Shenouda | Individual | Nephrology Physician | Chattanooga, TN |
| 1073510509 | Channappa Chandra | Individual | Orthopaedic Surgery Physician | Chattanooga, TN |
| 1326047622 | Mitchell Mutter | Individual | Cardiovascular Disease Physician | Chattanooga, TN |
| 1124029194 | Charles Brice | Individual | Surgery Physician | Chattanooga, TN |
| 1639171481 | Michael Goodman | Individual | Gastroenterology Physician | Chattanooga, TN |
| 1770575490 | Ut Physicians Inc | Organization | Internal Medicine Physician | Chattanooga, TN |
Verify this record
Cross-check NPI 1306992003 against the authoritative CMS record: view Brett Dennis Gerwin 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
Where does Brett Gerwin practice?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-11-11.