Karen Cassidy Diez, NP-C - Medicare Nurse Practitioner in Asheville, NC

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Karen Cassidy Diez, NP-C is a medicare enrolled "Nurse Practitioner" in Asheville, North Carolina. Her current practice location is 4 Vanderbilt Park Dr Ste 100, Asheville, North Carolina. You can reach out to her office (for appointments etc.) via phone at (828) 258-0397.

Karen Cassidy Diez is licensed to practice in North Carolina (license number 5011534) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1265999023.

Contact Information

Karen Cassidy Diez, NP-C
4 Vanderbilt Park Dr Ste 100,
Asheville, NC 28803-2476
(828) 258-0397
(828) 252-1969

Map and Direction




Provider's Profile

Full NameKaren Cassidy Diez
GenderFemale
SpecialityNurse Practitioner
Location4 Vanderbilt Park Dr Ste 100, Asheville, North Carolina
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1265999023
  • Provider Enumeration Date: 02/27/2019
  • Last Update Date: 08/06/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 1759746118
  • Enrollment ID: I20230508002542

Medical Identifiers

Medical identifiers for Karen Cassidy Diez such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1265999023NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363L00000XNurse Practitioner 5011534 (North Carolina)Primary

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. Karen Cassidy Diez allows following entities to bill medicare on her behalf.
Entity NameCarolina Internal Medicine Associates Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1710058086
PECOS PAC ID: 8426034422
Enrollment ID: O20040629001069
Entity NameAsheville Internal Medicine, P.a.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1699878207
PECOS PAC ID: 6002889896
Enrollment ID: O20040819000092

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. Karen Cassidy Diez 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
Karen Cassidy Diez, NP-C
4 Vanderbilt Park Dr Ste 100,
Asheville, NC 28803-2476

Ph: (828) 258-0397		Karen Cassidy Diez, NP-C
4 Vanderbilt Park Dr Ste 100,
Asheville, NC 28803-2476

Ph: (828) 258-0397

Reviews and Comments


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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).

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