NPI Portal NPI Lookup & Verification

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

Monika Garg Mathur, M.D.

Neurology with Special Qualifications in Child Neurology Physician in Tustin, CA · enumerated 2011 · practices at California Sleep Neurology Organization for Wellness.

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

National Provider Identifier

1558669002

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Monika Garg Mathur
Credential M.D.
Sex Female
Practice address Tustin, CA, 92780
Phone (949) 466-6055
Enumeration date Mar 8, 2011
Last updated in NPPES Jan 15, 2025

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

Taxonomy & licenses

2080S0012X Pediatric Sleep Medicine Physician Allopathic & Osteopathic Physicians · License A120142 (CA) Secondary
2084N0402X Neurology with Special Qualifications in Child Neurology Physician Allopathic & Osteopathic Physicians · License A120142 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 specialty is Monika Mathur?
Monika Mathur is registered in NPPES with the primary taxonomy of Neurology with Special Qualifications in Child Neurology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-15.