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

MS. Katrina Alef Thorstensen, CNM

Individual provider Advanced Practice Midwife · NPI 1710901962

MS. Katrina Alef Thorstensen, CNM is registered under Certified Nurse Midwife (CNM) in Lebanon, New Hampshire. Qualified in 1986, 40 years ago. Practices with Mary Hitchcock Memorial Hospital, a 1,266-clinician group and accepts Medicare assignment. Licensed in New Hampshire and Vermont.

Years since qualifying
40
Licensed in
NH, VT
In the registry since
2006
Specialties on file
2
What do these letters mean?
CNM — Certified Nurse-Midwife
An advanced practice nurse who provides prenatal care and delivers babies.

See every abbreviation used in this directory →

Practice location Address checks out

1 Medical Center Dr
Lebanon, NH 03756-1000 Not confirmed with CMS for 14 years — call before visiting
Phone: (603) 653-9310
Show map & directions

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

Specialties & licences

Advanced Practice Midwife (primary) Taxonomy 367A00000X · Licence 030021-23-01 (NH)
Advanced Practice Midwife Taxonomy 367A00000X · Licence 101-0022155 (VT)

Record details

NPI number1710901962
Entity typeIndividual (Type 1)
GenderFemale
Credentials CNM
Sole proprietorNo
NPI enumeratedJuly 27, 2006
Last updated in NPPESOctober 17, 2011

Medicare enrollment

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

Medicare specialtyCERTIFIED NURSE MIDWIFE (CNM)
Medical schoolOTHER
Graduated 1986 (40 years in practice)
Group practice Mary Hitchcock Memorial Hospital — 1266 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 patients26
Services billed 32 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mary Hitchcock Memorial Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1266 clinicians in the practice; 12 are shown here.

Other providers in Lebanon