Thandiwe C Gray, MD - Medicare Hematology/oncology in Bismarck, ND

Thandiwe C Gray, MD is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Bismarck, North Dakota. She graduated from medical school in 2004 and has 20 years of diverse experience with area of expertise as Hematology/oncology. She is a member of the group practice Sanford Bismarck and her current practice location is 300 N 7th St, Bismarck, North Dakota. You can reach out to her office (for appointments etc.) via phone at (701) 323-6000.

Thandiwe C Gray is licensed to practice in North Dakota (license number 11637) 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 1194884338.

Contact Information

Thandiwe C Gray, MD
300 N 7th St,
Bismarck, ND 58501-4439
(701) 323-6000
(701) 323-5918

Map and Direction




Physician's Profile

Full NameThandiwe C Gray
GenderFemale
SpecialityHematology/oncology
Experience20 Years
Location300 N 7th St, Bismarck, North Dakota
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:
  • Thandiwe C Gray graduated from medical school in 2004
  NPI Data:
  • NPI Number: 1194884338
  • Provider Enumeration Date: 12/06/2006
  • Last Update Date: 02/20/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 8123125853
  • Enrollment ID: I20100908001142

Medical Identifiers

Medical identifiers for Thandiwe C Gray such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1194884338NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 036116459 (Illinois)Secondary
207RH0003XInternal Medicine - Hematology & Oncology 11637 (North Dakota)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Sanford Medical Center BismarckBismarck, NDHospital
Sakakawea Medical Center - CahHazen, NDHospital
St Aloisius Medical CenterHarvey, NDHospital
Mckenzie County Healthcare Systems IncWatford city, NDHospital
Jacobson Memorial Hospital Care CenterElgin, NDHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Sanford Bismarck9739098575448

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. Thandiwe C Gray allows following entities to bill medicare on her behalf.
Entity NameSanford Bismarck
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1811941172
PECOS PAC ID: 9739098575
Enrollment ID: O20031105000403

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. Thandiwe C Gray 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
Thandiwe C Gray, MD
Po Box 5074,
Sioux Falls, SD 57117-5074

Ph: (605) 328-9419
Thandiwe C Gray, MD
300 N 7th St,
Bismarck, ND 58501-4439

Ph: (701) 323-6000

Reviews and Comments


Internal Medicine Doctors in Bismarck, ND

Dr. Ling Sing Chow, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 900 E Broadway Ave, Bismarck, ND 58501
Phone: 701-530-7000    
Nicholas C Mahr, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 310 N 10th Street, Bismarck, ND 58501
Phone: 701-530-7500    Fax: 701-530-7484
Dr. Maria Susana Castejon Welchez, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 300 N 7th St, Bismarck, ND 58501
Phone: 701-323-6000    
Dr. Sharmaine Habib, M.D
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 300 N 7th St, Bismarck, ND 58501
Phone: 701-323-8121    
Agnieszka Olga Solberg, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 900 E Broadway Ave, Bismarck, ND 58501
Phone: 701-530-7000    
Amy Marie Kaminski, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 900 E Broadway Ave, Bismarck, ND 58501
Phone: 701-530-7000    
Ivaldo A Lunardi, MD
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 222 N 7th St, Bismarck, ND 58501
Phone: 701-323-6000    Fax: 701-323-5709

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.