Warren Johnston, MD
Warren Johnston, MD holds NPI 1427052802, with a primary taxonomy of cardiovascular disease physician and a practice location in Orange, CA. The number was issued on June 13, 2005 and the NPPES record was last updated on November 3, 2021.
This record hasn't been updated in NPPES since 2021. Details may be out of date.
Taxonomies and licenses
| Taxonomy | Code | License |
|---|---|---|
| Cardiovascular Disease Physician Primary | 207RC0000X | G33255 (CA) |
Practice location
Local context
Active NPPES records list 626 providers with cardiovascular disease physician as the primary taxonomy within 25 miles of this practice location's ZIP code, 179 of them within 10 miles.
The same primary taxonomy is listed by 3,575 in California and 36,645 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
- Warren David Johnston
- 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/1427052802"