Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Keith Alan Christiansen, MD

Urology Physician in Fair Lawn, NJ · enumerated 2008.

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

National Provider Identifier

1679724694

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Keith Alan Christiansen

Credential MD

Sex Male

Practice address Fair Lawn, NJ, 07410

Phone (201) 855-8455

Enumeration date Oct 8, 2008

Last updated in NPPES May 15, 2018

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

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 25MA08972100 (NJ) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

How do I verify Keith Christiansen's NPI record?

Cross-check NPI 1679724694 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1679724694 active?

Yes, as of the latest NPPES snapshot, NPI 1679724694 is active (record last updated 2018-05-15).

Other providers at this practice address

Browse all →

Andranik Howhannesian Urology Physician · Fair Lawn, NJ NPI 1174591762

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-15.