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

Mrs. Karen M Armento, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1932138674

Mrs. Karen M Armento, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Littleton, New Hampshire. Qualified in 1984, 42 years ago. Practices with Amoskeag Anesthesia PLLC, a 166-clinician group and accepts Medicare assignment. Licensed in New Hampshire.

Years since qualifying
42
Licensed in
NH
In the registry since
2006
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

220 Cottage St
Littleton, NH 03561-4101
Phone: (603) 444-0272
Fax: (603) 444-0274
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 0275522311 (NH)

Record details

NPI number1932138674
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNA
Sole proprietorNo
NPI enumeratedJuly 3, 2006
Last updated in NPPESDecember 15, 2025
Certification dateDecember 15, 2025

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 1984 (42 years in practice)
Group practice Amoskeag Anesthesia Pllc — 166 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 patients203
Services billed 235 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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 Amoskeag Anesthesia PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 166 clinicians in the practice; 12 are shown here.

Other providers in Littleton