Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David C Tong, MD

Neurology Physician in San Francisco, CA · enumerated 2006.

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

National Provider Identifier

1386665883

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Registry record

Entity type Individual (Type 1)

Name David C Tong

Credential MD

Sex Male

Practice address 1100 Van Ness Ave Fl 6, San Francisco, CA, 94109

Phone (415) 600-5760

Fax (415) 369-1208

Enumeration date Jul 21, 2006

Last updated in NPPES Oct 21, 2019

Taxonomy & licenses

2084V0102X Vascular Neurology Physician Allopathic & Osteopathic Physicians · License A48639 (CA) Secondary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License A48639 (CA) 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
P00302952	Other	CA	RAILROAD MEDICARE
00A486390	Medicaid	CA	-
A48639	Other	CA	STATE MEDICAL 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 NPI 1386665883 active?

Yes, as of the latest NPPES snapshot, NPI 1386665883 is active (record last updated 2019-10-21).

How do I verify David Tong's NPI record?

Cross-check NPI 1386665883 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-10-21.