Charles Loren Obrien III, MD

Charles Loren Obrien III is a Pediatrics Physician provider (Pediatrics) practicing in Deerfield, IL, registered in the NPPES registry with NPI 1124050182 since 2006. The credential MD stands for Doctor of Medicine.

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NPI	1124050182
Entity type	Individual (Type 1)
Name	Charles Loren Obrien III
Credential	MD
Sex	Male
Practice address	49 S WAUKEGAN RD STE 100, Deerfield, IL, 60015
Phone	8479454575
Fax	8479454593
Enumeration date	2006-07-07
Last updated in NPPES	2020-10-13

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
208000000X	Pediatrics Physician	Primary	036057256	IL

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Copy-ready billing details

Provider: Charles Obrien, MD
NPI: 1124050182
Taxonomy: 208000000X (Pediatrics Physician)
Address: 49 S WAUKEGAN RD STE 100, Deerfield, IL, 60015

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1932127701	Belinda Chen	Individual	Pediatrics Physician	Deerfield, IL
1386890416	Sara Wiemer	Individual	Pediatrics Physician	Deerfield, IL
1639465131	Andrew Johnson	Individual	Pediatrics Physician	Deerfield, IL
1811634579	Shon Thomas	Individual	Internal Medicine Physician	Deerfield, IL

Verify this record

Cross-check NPI 1124050182 against the authoritative CMS record: view Charles Loren Obrien III on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What specialty is Charles Obrien?

Charles Obrien is registered in NPPES with the primary taxonomy of Pediatrics 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-10-13.