John Derr, M. D.
John Derr, M. D. holds NPI 1801883988, with a primary taxonomy of specialist and a practice location in Louisville, KY. The number was issued on October 4, 2005 and the NPPES record was last updated on September 13, 2026.
Taxonomies and licenses
| Taxonomy | Code | License |
|---|---|---|
| Specialist Primary | 174400000X | 25991 (KY) |
Practice location
Local context
Active NPPES records list 211 providers with specialist as the primary taxonomy within 25 miles of this practice location's ZIP code, 182 of them within 10 miles.
The same primary taxonomy is listed by 675 in Kentucky and 89,620 nationwide.
These are counts from NPPES records, not a ranking or recommendation. Distances are measured between ZIP code centers, not street addresses.
Record history
- Name on record
- John W Derr Jr.
- Status
- Active
- NPI issued
- Last updated in NPPES
Is this your record? Updates are made through NPPES, the official National Plan and Provider Enumeration System.
NPPES data as of · Source: CMS NPPES
Building software? Fetch this NPI programmatically with the NPILayer Provider API.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://api.npilayer.com/v1/providers/1801883988"