Mark Sittig, MD - Medicare Radiation Oncology in Nashville, TN

Mark Sittig, MD is a medicare enrolled "Radiology - Radiation Oncology" physician in Nashville, Tennessee. He went to Tulane University School Of Medicine and graduated in 2014 and has 10 years of diverse experience with area of expertise as Radiation Oncology. He is a member of the group practice Urology Associates Pc, Tennessee Oncology, Pllc and his current practice location is 2004 Hayes St Ste Ll15, Nashville, Tennessee. You can reach out to his office (for appointments etc.) via phone at (615) 284-7785.

Mark Sittig is licensed to practice in Tennessee (license number 59257) 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 1275951519.

Contact Information

Mark Sittig, MD
2004 Hayes St Ste Ll15,
Nashville, TN 37203-2647
(615) 284-7785
(615) 284-7791

Map and Direction




Physician's Profile

Full NameMark Sittig
GenderMale
SpecialityRadiation Oncology
Experience10 Years
Location2004 Hayes St Ste Ll15, Nashville, 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:
  • Mark Sittig attended and graduated from Tulane University School Of Medicine in 2014
  NPI Data:
  • NPI Number: 1275951519
  • Provider Enumeration Date: 04/03/2014
  • Last Update Date: 09/13/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 0446589584
  • Enrollment ID: I20190914000197

Medical Identifiers

Medical identifiers for Mark Sittig such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1275951519NPI-NPPES
7100617580MedicaidKY
Q051113MedicaidTN

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2085R0001XRadiology - Radiation Oncology 59257 (Tennessee)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Saint Thomas West HospitalNashville, TNHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Urology Associates Pc296139293139
Tennessee Oncology, Pllc4688586134223

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. Mark Sittig allows following entities to bill medicare on his behalf.
Entity NameTennessee Oncology, Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1811955917
PECOS PAC ID: 4688586134
Enrollment ID: O20031103000534
Entity NameUrology Associates Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043297542
PECOS PAC ID: 2961392931
Enrollment ID: O20040316000426

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. Mark Sittig 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
Mark Sittig, MD
2004 Hayes St Ste 800,
Nashville, TN 37203-2659

Ph: (615) 329-0570
Mark Sittig, MD
2004 Hayes St Ste Ll15,
Nashville, TN 37203-2647

Ph: (615) 284-7785

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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