Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Andrew W. Tan, M.D.

Surgery Physician in Wailuku, HI · enumerated 2006.

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

National Provider Identifier

1801836580

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Registry record

Entity type Individual (Type 1)

Name Dr. Andrew W. Tan

Credential M.D.

Sex Male

Practice address 80 Mahalani St, Wailuku, HI, 96793

Phone (808) 243-6000

Enumeration date Jun 8, 2006

Last updated in NPPES May 18, 2021

Taxonomy & licenses

174400000X Specialist Other Service Providers · License MD13193 (HI) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License MD-13193 (HI) 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
PENDING	Medicaid	HI	-

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

How do I verify Andrew Tan's NPI record?

Cross-check NPI 1801836580 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1801836580 active?

Yes, as of the latest NPPES snapshot, NPI 1801836580 is active (record last updated 2021-05-18).

Other providers at this practice address

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Hillary Blake Hardy Physical Therapist · Wailuku, HI NPI 1922053800 Nancy Zionkowski Occupational Therapist · Wailuku, HI NPI 1982659009 Robert Kikuchi Physical Therapist · Wailuku, HI NPI 1548203078 Jennifer Harper Physical Therapist · Wailuku, HI NPI 1598793739 Mehtap Berkmen Endocrinology, Diabetes & Metabolism Physician · Wailuku, HI NPI 1467481150 Pamela Gordon Cardiovascular Disease Physician · Wailuku, HI NPI 1881629186 Mark Gibson Neurology Physician · Wailuku, HI NPI 1730107038 Kaiser Foundation Health Plan Inc Clinical Medical Laboratory · Wailuku, HI NPI 1669487047

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-18.