Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Chandra G Martens, M.D.
Specialist in Wailuku, HI · enumerated 2015.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1033589809
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. Chandra G Martens
Credential M.D.
Sex Female
Practice address 227 Mahalani St, Wailuku, HI, 96793
Phone (808) 242-2600
Fax (808) 242-2626
Enumeration date Oct 5, 2015
Last updated in NPPES Oct 5, 2015
Taxonomy & licenses
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 |
|---|---|---|---|
| 70281 | Other | - | ONTARIO PROFESSIONAL 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.
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 Chandra Martens?
Chandra Martens is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Bobby Baker Specialist · Wailuku, HI NPI 1255406104 Pacific Cancer Institute LLC Radiation Oncology Clinic/Center · Wailuku, HI NPI 1144433053 Benjamin Falit Radiation Oncology Physician · Wailuku, HI NPI 1437474046 Radiation Oncology Inc Specialist · Wailuku, HI NPI 1518338797 Steven Nguyen Radiation Oncology Physician · Wailuku, HI NPI 1588152490
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-10-05.