NPI Portal NPI Lookup & Verification

Mr. John Johnson

Mr. John Johnson is a Optician provider (Technician/Technologist) practicing in Norman, OK, registered in the NPPES registry with NPI 1891827911 since 2007.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1891827911
Entity type Individual (Type 1)
Name Mr. John Johnson
Sex Male
Practice address Norman, OK, 73069
Phone 4053605505
Enumeration date 2007-03-12
Last updated in NPPES 2008-02-12

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
156FX1800X Optician Primary
Copy-ready billing details
Provider: John Johnson
NPI: 1891827911
Taxonomy: 156FX1800X (Optician)
Address: Norman, OK, 73069

Other providers at this practice address

NPI Name Type Specialty Location
1932113552 Ellen Donaldson Individual Marriage & Family Therapist Norman, OK
1467460154 Learnard Vile Individual Clinical Social Worker Norman, OK
1386656106 Raymond Fuchs Individual Psychologist Norman, OK
1093896433 Sherryl Sweeney Individual Occupational Therapist Norman, OK
1225156458 Barbara Hildebrant Individual Professional Counselor Norman, OK
1326260563 Maranda Greenfield Individual Clinical Social Worker Norman, OK
1396049664 Emily Persa Individual Counselor Norman, OK
1972898724 Judith Ofosu Individual Mental Health Counselor Norman, OK

Verify this record

Cross-check NPI 1891827911 against the authoritative CMS record: view Mr. John Johnson on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is John Johnson?
John Johnson is registered in NPPES with the primary taxonomy of Optician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-02-12.