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John Marshall Knox II, MD

Dermatology Physician in Kihei, HI · enumerated 2005 · practices at Maui Dermatology.

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

National Provider Identifier

1396749347

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Registry record

Entity type Individual (Type 1)
Name John Marshall Knox II
Credential MD
Sex Male
Practice address 375 Huku Lii Pl, Suite 201, Kihei, HI, 96753
Phone (808) 875-7477
Fax (808) 879-4585
Enumeration date Jun 8, 2005
Last updated in NPPES Jan 27, 2015

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License F9684 (TX) Secondary
207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License MD12517 (HI) Primary
207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License MD60199612 (WA) Secondary
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
P00985643 Other WA PALMETTO RR MEDICARE
0087KN Other WA REGENCE
1396749347 Medicaid WA -
274442 Other WA LNI

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 Knox?
John Knox is registered in NPPES with the primary taxonomy of Dermatology 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 2015-01-27.