Brent A Grishkin, MD - Medicare Thoracic Surgery (Cardiothoracic Vascular Surgery) in Knoxville, TN

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Brent A Grishkin, MD is a medicare enrolled "Thoracic Surgery (cardiothoracic Vascular Surgery)" physician in Knoxville, Tennessee. His current practice location is 9330 Park West Blvd, Suite 108, Knoxville, Tennessee. You can reach out to his office (for appointments etc.) via phone at (865) 769-8635.

Brent A Grishkin is licensed to practice in Tennessee (license number 27702) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1003809617.

Contact Information

Brent A Grishkin, MD
9330 Park West Blvd, Suite 108,
Knoxville, TN 37923-4308
(865) 769-8635
(865) 769-8631

Map and Direction




Physician's Profile

Full NameBrent A Grishkin
GenderMale
SpecialityThoracic Surgery (cardiothoracic Vascular Surgery)
Location9330 Park West Blvd, Knoxville, Tennessee
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1003809617
  • Provider Enumeration Date: 08/30/2005
  • Last Update Date: 08/10/2009
  Medicare PECOS Information:
  • PECOS PAC ID: 7911057211
  • Enrollment ID: I20090608000532

Medical Identifiers

Medical identifiers for Brent A Grishkin such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1003809617NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208G00000XThoracic Surgery (cardiothoracic Vascular Surgery) 27702 (Tennessee)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. Brent A Grishkin allows following entities to bill medicare on his behalf.
Entity NameParkwest Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1396739165
PECOS PAC ID: 8527965417
Enrollment ID: O20040429000423
Entity NameCovenant Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1457302010
PECOS PAC ID: 2860305463
Enrollment ID: O20060719000030

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. Brent A Grishkin 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
Brent A Grishkin, MD
9330 Park West Blvd, Suite 108,
Knoxville, TN 37923-4308

Ph: (865) 769-8635		Brent A Grishkin, MD
9330 Park West Blvd, Suite 108,
Knoxville, TN 37923-4308

Ph: (865) 769-8635

Reviews and Comments


Thoracic Surgery (Cardiothoracic Vascular Surgery) Doctors in Knoxville, TN

Dr. Christian Patrick Probst, M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Medicare: Accepting Medicare Assignments
Practice Location: 1926 Alcoa Hwy Ste F210, Knoxville, TN 37920
Phone: 865-305-2495    Fax: 865-305-2496
Merideth Geib, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Medicare: Medicare Enrolled
Practice Location: 1940 Alcoa Hwy Ste E260, Knoxville, TN 37920
Phone: 865-305-6955    
Raymond A Dieter Iii, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Medicare: Accepting Medicare Assignments
Practice Location: 1940 Alcoa Hwy, Suite E310, Knoxville, TN 37920
Phone: 865-305-6955    Fax: 865-637-5216
William Walter Mcalexander, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Medicare: Accepting Medicare Assignments
Practice Location: 10810 Parkside Dr Ste 109, Knoxville, TN 37934
Phone: 865-647-3350    Fax: 865-647-3359
Dr. Vijay R. Patil, M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Medicare: Not Enrolled in Medicare
Practice Location: 2001 Laurel Ave, Suite 201, Knoxville, TN 37916
Phone: 865-522-3355    Fax: 865-522-9774
Dr. Robert A Helsel, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Medicare: Not Enrolled in Medicare
Practice Location: 9330 Park West Blvd, Ste 108, Knoxville, TN 37923
Phone: 865-373-0820    Fax: 865-373-0821

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.