Mr Graham Warren Mason, MD - Medicare Hospitalist in Sioux City, IA

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Mr Graham Warren Mason, MD is a medicare enrolled "Hospitalist" physician in Sioux City, Iowa. His current practice location is 801 5th St, Sioux City, Iowa. You can reach out to his office (for appointments etc.) via phone at (712) 279-2010.

Mr Graham Warren Mason is licensed to practice in Iowa (license number MD-53165) 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 1952978116.

Contact Information

Mr Graham Warren Mason, MD
801 5th St,
Sioux City, IA 51101-1326
(712) 279-2010
Not Available

Map and Direction




Physician's Profile

Full NameMr Graham Warren Mason
GenderMale
SpecialityHospitalist
Location801 5th St, Sioux City, Iowa
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1952978116
  • Provider Enumeration Date: 06/07/2021
  • Last Update Date: 07/30/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 6901340934
  • Enrollment ID: I20240702001322

Medical Identifiers

Medical identifiers for Mr Graham Warren Mason such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1952978116NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist MD-53165 (Iowa)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. Mr Graham Warren Mason allows following entities to bill medicare on his behalf.
Entity NameSioux City Hospitalist Group, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1427789148
PECOS PAC ID: 3173906088
Enrollment ID: O20220810000609

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. Mr Graham Warren Mason 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
Mr Graham Warren Mason, MD
705 Douglas St # 321,
Sioux City, IA 51101-1048

Ph: (917) 294-5225		Mr Graham Warren Mason, MD
801 5th St,
Sioux City, IA 51101-1326

Ph: (712) 279-2010

Reviews and Comments


Hospitalist Doctors in Sioux City, IA

Sandeep Pulimi, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 801 5th St, 801 Fifth Street, Sioux City, IA 51101
Phone: 712-279-5999    
Ahmed Muhammed Abdelwahab Abdulrahman,
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 801 5th St, Sioux City, IA 51101
Phone: 712-279-2010    
David H. Daniels, M.D.
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 3520 Singing Hills Blvd, Sioux City, IA 51106
Phone: 712-294-7400    

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.