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

Dr. Neil D Kobrosky, MD

Endocrinology, Diabetes & Metabolism Physician in Gloucester, MA · enumerated 2006.

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

National Provider Identifier

1558308205

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Registry record

Entity type Individual (Type 1)

Name Dr. Neil D Kobrosky

Credential MD

Sex Male

Practice address Gloucester, MA, 01930

Phone (978) 283-4000

Fax (978) 282-0663

Enumeration date Jun 1, 2006

Last updated in NPPES Nov 17, 2009

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

Taxonomy & licenses

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 54501 (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
51998	Other	-	AETNA
61683	Other	MA	PILGRIM
31979	Other	-	FALLON
3050122	Medicaid	MA	-
5015917	Other	-	CHAMPUS
713905	Other	MA	TUFTS
110029028	Other	-	PALMETTO

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

Is NPI 1558308205 active?

Yes, as of the latest NPPES snapshot, NPI 1558308205 is active (record last updated 2009-11-17).

How do I verify Neil Kobrosky's NPI record?

Cross-check NPI 1558308205 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Brian Orr Pediatrics Physician · Gloucester, MA NPI 1730146697 Thomas Carbone Pediatrics Physician · Gloucester, MA NPI 1891752549 Emily Reulet Pediatric Nurse Practitioner · Gloucester, MA NPI 1235196759 Jeffrey Stockman Pediatrics Physician · Gloucester, MA NPI 1164489514 Michael Arsenian Cardiovascular Disease Physician · Gloucester, MA NPI 1457390692 Zaven Jouhourian Internal Medicine Physician · Gloucester, MA NPI 1255374518 Victor Carabba Internal Medicine Physician · Gloucester, MA NPI 1386673184 Roderick Mckenzie Addiction (Substance Use Disorder) Counselor · Gloucester, MA NPI 1649299132

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-11-17.