Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Eddy B Sun, MD

Hospitalist Physician in Stony Brook, NY · enumerated 2020.

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

National Provider Identifier

1962030056

Verified

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Registry record

Entity type Individual (Type 1)

Name Eddy B Sun

Credential MD

Sex Male

Practice address Dept of Internal Medicine Hsc16-020, Stony Brook, NY, 11794

Phone (631) 444-7411

Enumeration date Apr 1, 2020

Last updated in NPPES Oct 31, 2024

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 32242101 (NY) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 1020520 (MA) 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
7770004105957101	Medicaid	NJ	-

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

What specialty is Eddy Sun?

Eddy Sun is registered in NPPES with the primary taxonomy of Hospitalist 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-31.