Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

J Calvin Chatlos MD LLC

Q: What type of organization is J Calvin Chatlos MD LLC?

J Calvin Chatlos MD LLC is registered in NPPES as a Psychiatry Physician (its primary provider taxonomy).

Psychiatry Physician in Freehold, NJ · enumerated 2009 · authorized official John Chatlos, Sole Proprietor.

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

National Provider Identifier

1417282922

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Registry record

Entity type Organization (Type 2)

Legal business name J Calvin Chatlos MD LLC

Other name <Unavail>

Practice address 400 W Main St, Freehold, NJ, 07728

Phone (732) 414-6001

Fax (732) 677-3149

Enumeration date Oct 16, 2009

Last updated in NPPES Oct 16, 2009

Taxonomy & classification

2084A0401X Addiction Medicine (Psychiatry & Neurology) Physician Allopathic & Osteopathic Physicians · License MA 46262 (NJ) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License MA 46262 (NJ) Primary

2084P0802X Addiction Psychiatry Physician Allopathic & Osteopathic Physicians · License MA 46262 (NJ) Secondary

2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians · License MA 46262 (NJ) Secondary

Authorized official

Name John Chatlos

Title Sole Proprietor

Phone (732) 414-6001

Other identifiers

Identifier	Type	State	Issuer
2508206	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 J Calvin Chatlos MD LLC?

J Calvin Chatlos MD LLC is registered in NPPES as a Psychiatry Physician (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-16.