Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Timothy D Costello, MD

Emergency Medicine Physician in Harrison, AR · enumerated 2006.

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

National Provider Identifier

1235195785

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Timothy D Costello

Credential MD

Sex Male

Practice address 620 North Main, Harrison, AR, 72601

Phone (870) 365-2000

Enumeration date Apr 25, 2006

Last updated in NPPES Nov 25, 2024

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License ME137708 (FL) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 2011003498 (MO) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 0101236812 (VA) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License E-7237 (AR) Primary

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

Other identifiers

Identifier	Type	State	Issuer
190603001	Medicaid	AR	-
51228	Other	-	AR BLUE CROSS

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

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.

What specialty is Timothy Costello?

Timothy Costello is registered in NPPES with the primary taxonomy of Emergency Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-11-25.