Mark Johnson, MD
Mark Johnson, MD holds NPI 1780618694, with a primary taxonomy of nuclear radiology physician and a practice location in Southbury, CT. The number was issued on July 10, 2006 and the NPPES record was last updated on September 11, 2025. The record lists 3 taxonomy codes.
Taxonomies and licenses
| Taxonomy | Code | License |
|---|---|---|
| Nuclear Radiology Physician Primary | 2085N0904X | 022134 (CT) |
| Diagnostic Radiology Physician | 2085R0202X | 022134 (CT) |
| Diagnostic Ultrasound Physician | 2085U0001X | 022134 (CT) |
Practice location
Local context
Active NPPES records list 6 providers with nuclear radiology physician as the primary taxonomy within 25 miles of this practice location's ZIP code, 2 of them within 10 miles.
The same primary taxonomy is listed by 7 in Connecticut and 513 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
- Mark Johnson
- 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
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