Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Kristin M Mathieson, FNP

Individual provider Family Nurse Practitioner · NPI 1760680755

Kristin M Mathieson, FNP is a Nurse Practitioner in Portland, Maine. Qualified in 2007, 19 years ago. Practices with Dermatology Associates, LLC, a 21-clinician group and accepts Medicare assignment. Licensed in Maine.

Years since qualifying
19
Licensed in
ME
In the registry since
2007
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

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Practice location Address checks out

50 Sewall St
Portland, ME 04102-2624 Not confirmed with CMS for 19 years — call before visiting
Phone: (207) 775-3526
Fax: (207) 775-5658
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence R045725 (ME)

Record details

NPI number1760680755
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorNo
NPI enumeratedJuly 11, 2007
Last updated in NPPESJuly 11, 2007

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice Dermatology Associates, Llc — 21 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients44
Services billed 115 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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 Dermatology Associates, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 21 clinicians in the practice; 12 are shown here.

Other providers in Portland