Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Chest and Critical Care Consultants A Medical Group

Pulmonary Disease Physician in Santa Ana, CA · enumerated 2006 · authorized official Narindar Singh, Partner.

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

National Provider Identifier

1407943624

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Registry record

Entity type Organization (Type 2)

Legal business name Chest and Critical Care Consultants A Medical Group

Parent organization Chest and Critical Care Consultants A Medical Group

Practice address 999 N Tustin Ave Ste 1, Santa Ana, CA, 92705

Phone (714) 836-6800

Fax (714) 836-9966

Enumeration date Oct 8, 2006

Last updated in NPPES Feb 21, 2023

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Secondary

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians Primary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Narindar Singh

Title Partner

Phone (714) 836-6800

Other identifiers

Identifier	Type	State	Issuer
GR0025652	Medicaid	CA	-

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 the NPI number for Chest and Critical Care Consultants A Medical Group?

The NPI for Chest and Critical Care Consultants A Medical Group is 1407943624, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Chest and Critical Care Consultants A Medical Group?

NPPES lists Narindar Singh (Partner) as the authorized official for this organization.

Providers at this address

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Narindar Singh Pulmonary Disease Physician · Santa Ana, CA NPI 1992805683

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-02-21.