NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John H. Gong, MD

Internal Medicine Physician in Barrington, IL · enumerated 2006 · practices at Regency Medical Spa.

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

National Provider Identifier

1962414623

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Registry record

Entity type Individual (Type 1)
Name John H. Gong
Credential MD
Sex Male
Practice address 304 Fox Glen Ct, Barrington, IL, 60010
Phone (847) 462-1700
Enumeration date Aug 12, 2006
Last updated in NPPES Jun 12, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036-089072 (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
036089072 Medicaid IL -
036089072 Other IL STATE LICENSE

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

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 John Gong?
John Gong is registered in NPPES with the primary taxonomy of Internal Medicine 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 2025-06-12.