Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Chokkalingam Siva, M.D.

Rheumatology Physician in Columbia, MO · enumerated 2006 · practices at Curators of the University of Missouri.

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

National Provider Identifier

1912952326

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Registry record

Entity type Individual (Type 1)

Name Chokkalingam Siva

Credential M.D.

Sex Male

Practice address 1020 Hitt St, Columbia, MO, 65212

Phone (573) 882-8788

Fax (573) 882-3131

Enumeration date May 23, 2006

Last updated in NPPES Sep 12, 2022

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 119781 (MO) Secondary

207ZP0105X Clinical Pathology/Laboratory Medicine Physician Allopathic & Osteopathic Physicians · License 119781 (MO) Secondary

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License 119781 (MO) 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
208990606	Medicaid	MO	-

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 Chokkalingam Siva?

Chokkalingam Siva is registered in NPPES with the primary taxonomy of Rheumatology 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 2022-09-12.