Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Atlantic Hyperbaric Associates,LLC

Undersea and Hyperbaric Medicine (Emergency Medicine) Physician in Morristown, NJ · enumerated 2006 · authorized official Marilyn Althoff, Emergency Medicine.

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

National Provider Identifier

1174581334

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Registry record

Entity type Organization (Type 2)

Legal business name Atlantic Hyperbaric Associates,LLC

Practice address 100 Madison Ave, Morristown, NJ, 07962

Phone (973) 971-6015

Fax (973) 401-2420

Enumeration date May 3, 2006

Last updated in NPPES Oct 31, 2013

Taxonomy & classification

207PE0005X Undersea and Hyperbaric Medicine (Emergency Medicine) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Marilyn Althoff

Title Emergency Medicine

Phone (973) 971-6015

Other identifiers

Identifier	Type	State	Issuer
8363706	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Atlantic Hyperbaric Associates,LLC?

Atlantic Hyperbaric Associates,LLC is registered in NPPES as a Undersea and Hyperbaric Medicine (Emergency Medicine) Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-10-31.