Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Michael J Mercer, MD

Surgery Physician in Stuttgart, AR · enumerated 2005.

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

National Provider Identifier

1639172539

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael J Mercer

Credential MD

Sex Male

Practice address 1703 N Buerkle St, Stuttgart, AR, 72160

Phone (870) 674-6531

Enumeration date May 24, 2005

Last updated in NPPES Jul 13, 2026

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License E0207 (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
E2888	Other	AR	MCARE ELECTROINC

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 Michael Mercer?

Michael Mercer is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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