Dr Mario Marquist Ray, MD - Medicare Internal Medicine in Memphis, TN

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Dr Mario Marquist Ray, MD is a medicare enrolled "Hospitalist" physician in Memphis, Tennessee. He went to University Of Tennessee, Hsc, College Of Medicine and graduated in 2003 and has 23 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Ut Regional One Physicians Inc and his current practice location is 877 Jefferson Ave, Rm A589, Memphis, Tennessee. You can reach out to his office (for appointments etc.) via phone at (901) 545-8774.

Dr Mario Marquist Ray is licensed to practice in Tennessee (license number 39663) 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 1326128364.

Contact Information

Dr Mario Marquist Ray, MD
877 Jefferson Ave, Rm A589,
Memphis, TN 38103-2807
(901) 545-8774
Not Available

Map and Direction




Physician's Profile

Full NameDr Mario Marquist Ray
GenderMale
SpecialityInternal Medicine
Experience23 Years
Location877 Jefferson Ave, Memphis, 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:
  • Dr Mario Marquist Ray attended and graduated from University Of Tennessee, Hsc, College Of Medicine in 2003
  NPI Data:
  • NPI Number: 1326128364
  • Provider Enumeration Date: 10/16/2006
  • Last Update Date: 08/14/2017
  Medicare PECOS Information:
  • PECOS PAC ID: 8123129855
  • Enrollment ID: I20070725000601

Medical Identifiers

Medical identifiers for Dr Mario Marquist Ray such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1326128364NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 39663 (Tennessee)Secondary
208M00000XHospitalist 39663 (Tennessee)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Regional One HealthMemphis, TNHospital
Regional One Health Rehabilitation HospitalMemphis, TNInpatient rehabilitation facility

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ut Regional One Physicians Inc5698993418314

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 Mario Marquist Ray allows following entities to bill medicare on his behalf.
Entity NameUT Regional One Physicians Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093130585
PECOS PAC ID: 5698993418
Enrollment ID: O20140820000662

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 Mario Marquist Ray 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 Mario Marquist Ray, MD
877 Jefferson Ave, Rm A589,
Memphis, TN 38103-2807

Ph: (901) 545-8774		Dr Mario Marquist Ray, MD
877 Jefferson Ave, Rm A589,
Memphis, TN 38103-2807

Ph: (901) 545-8774

Reviews and Comments


Hospitalist Doctors in Memphis, TN

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Dr. Natalie Elise Dunlap, D.O.
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Dr. Grady Lee Bryant Iii, MD
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Practice Location: 877 Jefferson Ave, Memphis, TN 38103
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Ashley Skinner, DO
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Dr. Smriti Chuke, MD
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Bismah Arif Hasan, MD
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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).

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.