Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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James John Martineau, RN, MSN, FNP, NP-C

Individual provider Nurse Practitioner · NPI 1205927084

James John Martineau, RN, MSN, FNP, NP-C is a Nurse Practitioner in Princeton, Minnesota. Qualified in 2006, 20 years ago. Practices with New Kingdom Pediatrics LLC, a 19-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Minnesota.

Years since qualifying
20
Licensed in
MN
In the registry since
2006
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.
NP-C — Nurse Practitioner, Certified
A nurse practitioner certified by the AANP.

See every abbreviation used in this directory →

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Practice location Address checks out

1100 7th Ave S Express Clinic
Princeton, MN 55371-4555 Not confirmed with CMS for 16 years — call before visiting
Phone: (763) 389-5207
Fax: (763) 389-4138
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence R 143375-7 (MN)

Record details

NPI number1205927084
Entity typeIndividual (Type 1)
GenderMale
Credentials RN , MSN , FNP , NP-C
Sole proprietorNo
NPI enumeratedSeptember 27, 2006
Last updated in NPPESMarch 29, 2010

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2006 (20 years in practice)
Group practice New Kingdom Pediatrics Llc — 19 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients39
Services billed 98 a service is one billed item, such as a visit, a test or a procedure
Average patient age63

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at New Kingdom Pediatrics LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 19 clinicians in the practice; 12 are shown here.

Other providers in Princeton