Dr. David Bruce Witkin, M.D.
Dr. David Bruce Witkin is a Internal Medicine Physician provider (Internal Medicine) practicing in Eugene, OR, registered in the NPPES registry with NPI 1649289810 since 2006. The credential MD stands for Doctor of Medicine. Practices at Chase Gardens Surgery Center LLC (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1649289810 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. David Bruce Witkin |
| Credential | M.D. |
| Sex | Male |
| Practice address | Eugene, OR, 97401 |
| Phone | 8008132000 |
| Enumeration date | 2006-08-05 |
| Last updated in NPPES | 2026-05-11 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207R00000X | Internal Medicine Physician | Secondary | MD61116304 | WA |
| 207R00000X | Internal Medicine Physician | Primary | MD 13391 | OR |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Copy-ready billing details
Provider: David Witkin, M.D. NPI: 1649289810 Taxonomy: 207R00000X (Internal Medicine Physician) Address: Eugene, OR, 97401
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1497017354 | Mark Mueller | Individual | Family Medicine Physician | Eugene, OR |
| 1700248309 | Julie Bergman | Individual | Internal Medicine Physician | Eugene, OR |
| 1588181275 | Chase Gardens Surgery Center LLC | Organization | Ambulatory Surgical Clinic/Center | Eugene, OR |
Verify this record
Cross-check NPI 1649289810 against the authoritative CMS record: view Dr. David Bruce Witkin 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 is the NPI number for David Witkin?
Where does David Witkin practice?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-05-11.