Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karl W. Strom, MD

Surgery Physician in Glen Ridge, NJ · enumerated 2007.

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

National Provider Identifier

1831249275

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Registry record

Entity type Individual (Type 1)

Name Karl W. Strom

Credential MD

Sex Male

Practice address 123 Highland Ave, Glen Ridge, NJ, 07028

Phone (973) 429-1200

Fax (973) 429-7602

Enumeration date Jan 10, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 25MA07725900 (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.

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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 Karl Strom?

Karl Strom is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.