Internal Medicine
KATHRYN GRINNEN DO
Identity confirmed via CMS NPPES · September 30, 2026 · A directory match is not a coverage approval.
Is this your practice? This listing was imported from public provider identity data (CMS NPPES) and has not yet been claimed. Claim this listing to confirm the practice details. Plan acceptance stays unpublished until the practice reports it.
Public record
NPI 1710102124 · enumerated 2007-04-13 · record updated 2011-02-10. Source: CMS NPPES. A listing is not a TRICARE network approval.
NPPES recordGoogle Maps Apple Maps OpenStreetMap
Addresses and phones
- Mailing address 15012 OYSTER SHELL DR, MILTON, DE, 19968-3795 (302) 703-2563 Google Maps Apple Maps OpenStreetMap
- Practice location 16295 WILLOW CREEK RD, LEWES, DE, 19958-3614 (302) 645-3555 Google Maps Apple Maps OpenStreetMap
Specialties
- Internal Medicine 207R00000X · Primary · License c2-0009051 DE
- Internal Medicine 207R00000X · License 58002204 OH
In this directory
Locations and evidence
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Practice location
LEWES, DE, 199583614
Accepting new patientsNot reportedCMS NPPES · September 30, 2026
Plan acceptance
- No published plan acceptance yet. Confirm directly with the practice, or claim this listing if it's yours.