MS. KARIN E GRANN N.P.
NPI 1730477761
Nurse Practitioner - Acute Care in Willimantic, CT
About Ms. Karin E Grann N.p. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. KARIN E GRANN N.P. (NPI 1730477761) is an individual acute care provider in Willimantic, Connecticut, licensed in Connecticut (4702) and active in the NPI registry since July 2011. She is enrolled in Medicare PECOS and is a graduate of Other (2011).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ms. Karin E Grann N.p. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
7Medicare enrollment records show Karin Grann reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Willimantic, CT 06226
- Reassigned Medicare billing, Connecticut enrollment
- 302 clinicians in this Medicare group
New Britain, CT 06051
- Reassigned Medicare billing, Connecticut enrollment
- 468 clinicians in this Medicare group
Manchester, CT 06040
- Reassigned Medicare billing, Connecticut enrollment
- 130 clinicians in this Medicare group
Norwich, CT 06360
- Reassigned Medicare billing, Connecticut enrollment
- 430 clinicians in this Medicare group
Springfield, MA 01151
- Reassigned Medicare billing, Connecticut enrollment
- Medicare enrollment name: Ipc Hospitalists Of New England PC
- 88 clinicians in this Medicare group
Putnam, CT 06260
- Reassigned Medicare billing, Connecticut enrollment
- 163 clinicians in this Medicare group
Baton Rouge, LA 70816
- Reassigned Medicare billing, Connecticut enrollment
- 127 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06226 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WILLIMANTIC, CT 06226
WILLIMANTIC, CT 06226
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Karin Grann's NPI number?
The NPI number for Karin Grann is 1730477761. It was assigned to this individual provider in the NPPES registry on July 12, 2011.
Where is Karin Grann located?
Karin Grann practices at 112 Mansfield Ave, Willimantic, CT 06226. The listed phone number is (203) 284-1340.
What is Karin Grann's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Karin Grann enrolled in Medicare?
Yes. Karin Grann is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Karin Grann's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karin Grann reassigns Medicare benefits to 7 organizations: Windham Community Memorial Hospital, Inc. (Willimantic, CT), Starling Physicians, PLLC (New Britain, CT), Hospitalist Medicine Physicians Of Connecticut, LLC (Manchester, CT), William W Backus Hospital (Norwich, CT), Ipc Hospitalists Of New England, P.C. (Springfield, MA) and 2 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Karin Grann's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Karin Grann accept?
Health plans from Anthem Blue Cross and Blue Shield list Karin Grann as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Karin Grann was last updated on March 1, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Ms. Karin E Grann, N.P. · NPI 1730477761
Acute Care physician in Willimantic, Connecticut. Individual provider, active in the CMS NPPES registry since July 12, 2011.
## Identity
- **NPI:** 1730477761 (Entity type: Individual)
- **Enumerated:** July 12, 2011
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** 4702 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 112 MANSFIELD AVE, Willimantic, CT 06226-2045
- **Phone:** (203) 284-1340 · **Fax:** (203) 265-4557
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Windham Community Memorial Hospital, Inc. (NPI 1023191467, Willimantic, CT); Starling Physicians, PLLC (NPI 1720182991, New Britain, CT); Hospitalist Medicine Physicians Of Connecticut, LLC (NPI 1558696153, Manchester, CT); William W Backus Hospital (NPI 1730243536, Norwich, CT); Ipc Hospitalists Of New England, P.C. (NPI 1659555266, Springfield, MA); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** March 1, 2012
- **Other identifiers:** Other 82608 (CT)
---
Source: [NPI Profile](https://npiprofile.com/npi/1730477761) · Data from the CMS NPPES public registry.