NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

James John Martineau, RN, MSN, FNP, NP-C

Nurse Practitioner in Princeton, MN · enumerated 2006 · practices at Coborns Inc.

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

National Provider Identifier

1205927084

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name James John Martineau
Credential RN, MSN, FNP, NP-C
Sex Male
Practice address 1100 7th Ave S, Express Clinic, Princeton, MN, 55371
Fax (763) 389-4138
Enumeration date Sep 27, 2006
Last updated in NPPES Mar 29, 2010

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R 143375-7 (MN) Primary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

Other identifiers

Identifier Type State Issuer
41-1952112 Medicaid MN -

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 is the NPI number for James Martineau?
The National Provider Identifier (NPI) for James Martineau is 1205927084, a Type 1 (individual) record in the CMS NPPES registry.
Where does James Martineau practice?
The practice location on file with NPPES is in Princeton, MN. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-29.