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

Margaret Michelle Blackwood, MD

Surgery Physician in Livingston, NJ · enumerated 2006.

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

National Provider Identifier

1396839502

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Registry record

Entity type Individual (Type 1)

Name Margaret Michelle Blackwood

Credential MD

Sex Female

Practice address Livingston, NJ, 07039

Phone (973) 322-7020

Fax (973) 322-7039

Enumeration date Oct 3, 2006

Last updated in NPPES Oct 17, 2023

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

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 25MA07666200 (NJ) Primary

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

Other identifiers

Identifier	Type	State	Issuer
193241	Other	NY	NYS LICENSE
02939751	Medicaid	NY	-

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

How do I verify Margaret Blackwood's NPI record?

Cross-check NPI 1396839502 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1396839502 active?

Yes, as of the latest NPPES snapshot, NPI 1396839502 is active (record last updated 2023-10-17).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-17.