Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Hong I Tjoa, MD

Cardiovascular Disease Physician in Jefferson City, TN · enumerated 2006.

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

National Provider Identifier

1093816233

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Registry record

Entity type Individual (Type 1)

Name Dr. Hong I Tjoa

Credential MD

Sex Male

Practice address 120 Hospital Dr Ste 250, Jefferson City, TN, 37760

Phone (865) 471-2570

Fax (865) 471-2571

Enumeration date Sep 26, 2006

Last updated in NPPES Sep 10, 2020

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License MD46765 (TN) 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
1522957	Medicaid	TN	-

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 Hong Tjoa?

Hong Tjoa is registered in NPPES with the primary taxonomy of Cardiovascular Disease Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-09-10.