Dr Clarissa S Geyer, MD - Medicare Hematology/oncology in Morristown, TN

Dr Clarissa S Geyer, MD is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Morristown, Tennessee. She graduated from medical school in 1989 and has 35 years of diverse experience with area of expertise as Hematology/oncology. She is a member of the group practice University Health System, Inc. and her current practice location is 908 W 4th North St, Morristown, Tennessee. You can reach out to her office (for appointments etc.) via phone at (423) 522-4900.

Dr Clarissa S Geyer is licensed to practice in Tennessee (license number MD0000034568) 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 1528264223.

Contact Information

Dr Clarissa S Geyer, MD
908 W 4th North St,
Morristown, TN 37814-3894
(423) 522-4900
(423) 522-4901

Map and Direction




Physician's Profile

Full NameDr Clarissa S Geyer
GenderFemale
SpecialityHematology/oncology
Experience35 Years
Location908 W 4th North St, Morristown, Tennessee
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:
  • Dr Clarissa S Geyer graduated from medical school in 1989
  NPI Data:
  • NPI Number: 1528264223
  • Provider Enumeration Date: 06/21/2007
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 8325130198
  • Enrollment ID: I20070824000131

Medical Identifiers

Medical identifiers for Dr Clarissa S Geyer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1528264223NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology MD0000034568 (Tennessee)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
University Of Tn Medical CenterKnoxville, TNHospital
Fort Loudoun Medical CenterLenoir city, TNHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
University Health System, Inc.5294646378531

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. Dr Clarissa S Geyer allows following entities to bill medicare on her behalf.
Entity NameUniversity Health System, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1790738763
PECOS PAC ID: 5294646378
Enrollment ID: O20031111000809

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. Dr Clarissa S Geyer 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
Dr Clarissa S Geyer, MD
1934 Alcoa Hwy Ste 474,
Knoxville, TN 37920-1526

Ph: (865) 544-8780
Dr Clarissa S Geyer, MD
908 W 4th North St,
Morristown, TN 37814-3894

Ph: (423) 522-4900

Reviews and Comments


Internal Medicine Doctors in Morristown, TN

Syed Shaukat Husnain, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 850 W 3rd North St, Morristown, TN 37814
Phone: 423-581-2795    Fax: 423-581-7113
Dr. Rodney O. Diehl, DO
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 705 Mcfarland St, Morristown, TN 37814
Phone: 423-492-5450    
Orlanda Raymond Lowry Iii, M.D.
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 1432 Darbee Dr, Morristown, TN 37814
Phone: 423-581-3160    
Ifeoma Chiamaka Ogbuka, M.D
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 908 W 4th North St, Morristown, TN 37814
Phone: 773-701-2146    
Ernesto Mejia, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 500 Mcfarland St, Suite B, Morristown, TN 37814
Phone: 423-587-0740    Fax: 423-581-0063
Paul B Cardali, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 420 W Morris Blvd, Healthstar Physicians, Morristown, TN 37813
Phone: 423-586-0443    Fax: 423-586-0431
David Arden Walker, M.D.
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 850 W 3rd North St, Suite B, Morristown, TN 37814
Phone: 423-581-2795    Fax: 423-289-1605

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.