Christopher Richardson, D.O.
Christopher Richardson, D.O. holds NPI 1821418468, with a primary taxonomy of critical care medicine (internal medicine) physician and a practice location in Riverdale, CA. The number was issued on April 22, 2014 and the NPPES record was last updated on September 3, 2025. The record lists 4 taxonomy codes. One additional practice location is listed.
Taxonomies and licenses
| Taxonomy | Code | License |
|---|---|---|
| Critical Care Medicine (Internal Medicine) Physician Primary | 207RC0200X | DO.2784 (AL) |
| Pediatrics Physician | 208000000X | 20A18177 (CA) |
| Pediatric Emergency Medicine (Emergency Medicine) Physician | 207PP0204X | DO.2784 (AL) |
| Internal Medicine Physician | 207R00000X | 20A18177 (CA) |
Practice locations
Local context
Active NPPES records list 9 providers with critical care medicine (internal medicine) physician as the primary taxonomy within 25 miles of this practice location's ZIP code, 1 of them within 10 miles.
The same primary taxonomy is listed by 894 in California and 7,319 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
- Dr. Christopher Charles Richardson
- 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/1821418468"