Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joseph W. Gross, M.D.

Infectious Disease Physician in Newburyport, MA · enumerated 2005.

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

National Provider Identifier

1457355232

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Registry record

Entity type Individual (Type 1)

Name Joseph W. Gross

Credential M.D.

Sex Male

Practice address 21 Highland Ave, Ste 5, Newburyport, MA, 01950

Phone (978) 499-3810

Fax (978) 462-2316

Enumeration date Jun 9, 2005

Last updated in NPPES Mar 12, 2025

Taxonomy & licenses

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License 224290 (MA) 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
31068Y	Other	NH	ANTHEM BLUE CROSS
975191	Other	-	NETWORK HEALTH
8575792	Other	-	CIGNA
AA37921	Other	MA	HARVARD PILGRIM
468346	Other	MD	TUFTS
J28902	Other	MA	BLUE CROSS BLUE SHIELD
110041461A	Medicaid	MA	-
92-00461	Other	-	EVERCARE
30205218	Other	NH	NH MEDICAID
0035649	Other	-	NEIGHBORHOOD HEALTH PLAN
683105	Other	-	HEALTHSOURCE

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 Joseph Gross's NPI record?

Cross-check NPI 1457355232 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1457355232 active?

Yes, as of the latest NPPES snapshot, NPI 1457355232 is active (record last updated 2025-03-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-12.