Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marianne T. Alexander, MD

Adult Health Nurse Practitioner in Voorhees, NJ · enumerated 2006 · practices at Cooper Physician Offices.

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

National Provider Identifier

1598731424

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Registry record

Entity type Individual (Type 1)

Name Marianne T. Alexander

Credential MD

Sex Female

Practice address 6100 Main St, Voorhees, NJ, 08043

Phone (856) 673-4912

Fax (856) 673-4497

Enumeration date Feb 28, 2006

Last updated in NPPES Apr 5, 2018

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 26NN09127800 (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 Marianne Alexander's NPI record?

Cross-check NPI 1598731424 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1598731424 active?

Yes, as of the latest NPPES snapshot, NPI 1598731424 is active (record last updated 2018-04-05).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-04-05.