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

Individual provider Family Medicine Physician · NPI 1891803755

Ivar Leslie Frithsen, MD is a Family Practice in Keene, New Hampshire. Qualified in 2002, 24 years ago. Practices with Brattleboro Memorial Hospital, a 70-clinician group and accepts Medicare assignment. Licensed in South Carolina.

Years since qualifying
24
Licensed in
SC
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

580 Court St
Keene, NH 03431-1718
Phone: (603) 354-5454
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 25940 (SC)

Record details

NPI number1891803755
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 29, 2006
Last updated in NPPESApril 18, 2012

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Brattleboro Memorial Hospital — 70 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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