Kathryn Grinnen, DO - Medicare Internal Medicine in Lewes, DE

Kathryn Grinnen, DO is a medicare enrolled "Internal Medicine" physician in Lewes, Delaware. She went to Lake Erie College Of Osteopathic Medicine, Erie and graduated in 2006 and has 18 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Core Concierge Primary Care And Wellness Llc and her current practice location is 16295 Willow Creek Rd, Lewes, Delaware. You can reach out to her office (for appointments etc.) via phone at (302) 645-3555.

Kathryn Grinnen is licensed to practice in Delaware (license number C2-0009051) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1710102124.

Contact Information

Kathryn Grinnen, DO
16295 Willow Creek Rd,
Lewes, DE 19958-3614
(302) 645-3555
Not Available

Map and Direction




Physician's Profile

Full NameKathryn Grinnen
GenderFemale
SpecialityInternal Medicine
Experience18 Years
Location16295 Willow Creek Rd, Lewes, Delaware
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Kathryn Grinnen attended and graduated from Lake Erie College Of Osteopathic Medicine, Erie in 2006
  NPI Data:
  • NPI Number: 1710102124
  • Provider Enumeration Date: 04/13/2007
  • Last Update Date: 02/10/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 9133274624
  • Enrollment ID: I20090904000452

Medical Identifiers

Medical identifiers for Kathryn Grinnen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1710102124NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine C2-0009051 (Delaware)Primary
207R00000XInternal Medicine 58002204 (Ohio)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Seasons Hospice & Palliative Care Of Delaware, LlcNewark, DEHospice
Beebe Medical CenterLewes, DEHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Core Concierge Primary Care And Wellness Llc85274128992

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Kathryn Grinnen allows following entities to bill medicare on her behalf.
Entity NameBeebe Physician Network Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1730133992
PECOS PAC ID: 5496744864
Enrollment ID: O20040511000133
Entity NameCore Concierge Primary Care And Wellness Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1255011227
PECOS PAC ID: 8527412899
Enrollment ID: O20230921000569

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Kathryn Grinnen is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Kathryn Grinnen, DO
15012 Oyster Shell Dr,
Milton, DE 19968-3795

Ph: (302) 703-2563
Kathryn Grinnen, DO
16295 Willow Creek Rd,
Lewes, DE 19958-3614

Ph: (302) 645-3555

Reviews and Comments


Internal Medicine Doctors in Lewes, DE

Dr. George M. Kluchnik, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 424 Savannah Rd, Lewes, DE 19958
Phone: 302-645-3555    Fax: 302-644-3560
Amulya D Amirneni, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 17005 Old Orchard Rd, Lewes, DE 19958
Phone: 302-703-4025    
Dr. Steven A Calamita, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 424 Savannah Rd, Lewes, DE 19958
Phone: 302-645-3300    
Dr. Maneshkumar F. Patel, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 400 Savannah Rd, Suite B, Lewes, DE 19958
Phone: 302-645-3555    
Robert C Deckmann, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 33663 Bayview Medical Dr, Unit 2, Lewes, DE 19958
Phone: 302-645-9325    Fax: 302-645-5214
Harry J Anagnostakos, DO
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 400 Savannah Rd, Suite B, Lewes, DE 19958
Phone: 302-645-3555    Fax: 302-644-3560
Dr. Carlton Boxhill, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1526 Savannah Rd, Lewes, DE 19958
Phone: 302-645-2244    Fax: 302-645-1173

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.