Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David Chaar, MD

Neurology Physician in Sherman, TX · enumerated 2018.

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

National Provider Identifier

1417454356

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Registry record

Entity type Individual (Type 1)

Name David Chaar

Credential MD

Sex Male

Practice address 321 N Highland Ave Ste 200, Sherman, TX, 75092

Phone (903) 893-5141

Enumeration date Apr 8, 2018

Last updated in NPPES Nov 14, 2023

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License U3179 (TX) 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 David Chaar?

David Chaar is registered in NPPES with the primary taxonomy of 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-14.