William Clay Callicott Vi, DO - Medicare Internal Medicine in Knoxville, TN

William Clay Callicott Vi, DO is a medicare enrolled "Internal Medicine - Pulmonary Disease" physician in Knoxville, Tennessee. He graduated from medical school in 2020 and has 6 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Southeastern Physician Services Pc and his current practice location is 9352 Park West Blvd, Knoxville, Tennessee. You can reach out to his office (for appointments etc.) via phone at (865) 373-1000.

William Clay Callicott Vi is licensed to practice in Tennessee (license number 5317) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1275162380.

Contact Information

William Clay Callicott Vi, DO
9352 Park West Blvd,
Knoxville, TN 37923-4325
(865) 373-1000
Not Available

Map and Direction




Physician's Profile

Full NameWilliam Clay Callicott Vi
GenderMale
SpecialityInternal Medicine
Experience6 Years
Location9352 Park West Blvd, Knoxville, Tennessee
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • William Clay Callicott Vi graduated from medical school in 2020
  NPI Data:
  • NPI Number: 1275162380
  • Provider Enumeration Date: 04/02/2020
  • Last Update Date: 06/25/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 4880016328
  • Enrollment ID: I20250106003333

Medical Identifiers

Medical identifiers for William Clay Callicott Vi such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1275162380NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 5317 (Tennessee)Secondary
207RP1001XInternal Medicine - Pulmonary Disease 5317 (Tennessee)Primary
207RC0200XInternal Medicine - Critical Care Medicine 5317 (Tennessee)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Baptist Memorial HospitalMemphis, TNHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Southeastern Physician Services Pc0042307852608

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. William Clay Callicott Vi allows following entities to bill medicare on his behalf.
Entity NameSoutheastern Physician Services Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1083835441
PECOS PAC ID: 0042307852
Enrollment ID: O20071025000571

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. William Clay Callicott Vi 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
William Clay Callicott Vi, DO
1900 N Winston Rd Ste 501,
Knoxville, TN 37919-3605

Ph: () -
William Clay Callicott Vi, DO
9352 Park West Blvd,
Knoxville, TN 37923-4325

Ph: (865) 373-1000

Reviews and Comments


Internal Medicine Doctors in Knoxville, TN

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Christopher Delange, MD
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Saji Eapen, MD
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Practice Location: 1415 Old Weisgarber Rd, Suite 200, Knoxville, TN 37909
Phone: 865-934-5800    Fax: 865-934-5801

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.