Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mary F Welsh, M.D.

Surgery Physician in Fairfield, NJ · enumerated 2005.

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

National Provider Identifier

1063406874

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Registry record

Entity type Individual (Type 1)

Name Dr. Mary F Welsh

Credential M.D.

Sex Female

Practice address 695 Us Highway 46, Suite 400a, Fairfield, NJ, 07004

Phone (973) 894-1263

Fax (888) 972-3703

Enumeration date Sep 7, 2005

Last updated in NPPES Jan 17, 2017

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License MD054775L (PA) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 25MA062000800 (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
682200	Medicaid	NJ	-

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 Mary Welsh's NPI record?

Cross-check NPI 1063406874 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1063406874 active?

Yes, as of the latest NPPES snapshot, NPI 1063406874 is active (record last updated 2017-01-17).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-17.