Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John H Arnold, M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Quincy, IL · enumerated 2005.

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

National Provider Identifier

1932184272

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Registry record

Entity type Individual (Type 1)

Name Dr. John H Arnold

Credential M.D.

Sex Male

Practice address 927 Broadway St, Quincy, IL, 62301

Phone (217) 223-8400

Enumeration date Dec 9, 2005

Last updated in NPPES Nov 27, 2023

Taxonomy & licenses

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 45210 (KY) Secondary

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 35067649A (OH) Secondary

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 036131266 (IL) 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
4565116	Other	OH	AETNA
7100203730	Medicaid	KY	-
0994545	Medicaid	OH	-
ANTHEM	Other	OH	000000222541
330005726	Other	OH	RAILROAD MEDICARE
1800103	Other	OH	UNITED HEALTHCARE
1891750007	Other	OH	CIGNA

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.

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Frequently asked questions

What specialty is John Arnold?

John Arnold is registered in NPPES with the primary taxonomy of Thoracic Surgery (Cardiothoracic Vascular Surgery) 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 2023-11-27.