Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

MS. Karin E Grann, NP

Individual provider Acute Care Nurse Practitioner · NPI 1730477761

MS. Karin E Grann, NP is a Nurse Practitioner in Willimantic, Connecticut. Qualified in 2011, 15 years ago. Practices with Windham Community Memorial Hospital Inc, a 64-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
15
Licensed in
CT
In the registry since
2011
Specialties on file
2
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

112 Mansfield Ave
Willimantic, CT 06226-2045 Not confirmed with CMS for 14 years — call before visiting
Phone: (203) 284-1340
Fax: (203) 265-4557
Show map & directions

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

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence 4702 (CT)
Registered Nurse Taxonomy 163W00000X · Licence 82608 (CT)

Record details

NPI number1730477761
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedJuly 12, 2011
Last updated in NPPESMarch 1, 2012

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Windham Community Memorial Hospital Inc — 64 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients170
Services billed 494 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

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 Windham Community Memorial Hospital Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 64 clinicians in the practice; 12 are shown here.

Other providers in Willimantic