NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karl Alan Johnson, FNP-C

Nurse Practitioner in Gallup, NM · enumerated 2020 · practices at High Desert Nephrology Associates Pllc.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1730781451

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Karl Alan Johnson
Credential FNP-C
Sex Male
Practice address 1551 S Second St, Gallup, NM, 87301
Fax (505) 542-0155
Enumeration date Nov 9, 2020
Last updated in NPPES Dec 31, 2024

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 11032336-4405 (UT) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 1093694 (TX) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 80531 (NM) Primary

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 → Validate an NPI →

Frequently asked questions

Is NPI 1730781451 active?
Yes, as of the latest NPPES snapshot, NPI 1730781451 is active (record last updated 2024-12-31).
How do I verify Karl Johnson's NPI record?
Cross-check NPI 1730781451 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-31.