Dr Clinton Graves Wallis, MD - Medicare Gastroenterology in Oklahoma City, OK

Dr Clinton Graves Wallis, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Oklahoma City, Oklahoma. He graduated from medical school in 1998 and has 26 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Hpi Physicians Llc and his current practice location is 6516 N Olie Ave Ste A, Oklahoma City, Oklahoma. You can reach out to his office (for appointments etc.) via phone at (405) 486-6960.

Dr Clinton Graves Wallis is licensed to practice in Oklahoma (license number 24646) 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 1255384483.

Contact Information

Dr Clinton Graves Wallis, MD
6516 N Olie Ave Ste A,
Oklahoma City, OK 73116-7399
(405) 486-6960
(405) 486-6961

Map and Direction




Physician's Profile

Full NameDr Clinton Graves Wallis
GenderMale
SpecialityGastroenterology
Experience26 Years
Location6516 N Olie Ave Ste A, Oklahoma City, Oklahoma
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 Clinton Graves Wallis graduated from medical school in 1998
  NPI Data:
  • NPI Number: 1255384483
  • Provider Enumeration Date: 05/18/2006
  • Last Update Date: 01/13/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 6901819168
  • Enrollment ID: I20060718000281

Medical Identifiers

Medical identifiers for Dr Clinton Graves Wallis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1255384483NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 24646 (Oklahoma)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Community Hospital, LlcOklahoma city, OKHospital
Integris Baptist Medical Center, IncOklahoma city, OKHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Hpi Physicians Llc640604828939

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 Clinton Graves Wallis allows following entities to bill medicare on his behalf.
Entity NameIntegris Bass Baptist Health Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124029293
PECOS PAC ID: 0345151981
Enrollment ID: O20031103000717
Entity NameHpi Physicians Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205152600
PECOS PAC ID: 6406048289
Enrollment ID: O20101012000705
Entity NameIntegris Ddsi Endoscopy Centers Llc
Entity TypePart B Supplier - Ambulatory Surgical Center
Entity IdentifiersNPI Number: 1497347934
PECOS PAC ID: 3072928266
Enrollment ID: O20210222001178

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 Clinton Graves Wallis 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 Clinton Graves Wallis, MD
6516 N. Olive Ave, Suite A,
Oklahoma City, OK 73116-4462

Ph: (405) 486-6960
Dr Clinton Graves Wallis, MD
6516 N Olie Ave Ste A,
Oklahoma City, OK 73116-7399

Ph: (405) 486-6960

Reviews and Comments


Internal Medicine Doctors in Oklahoma City, OK

Evelyn Lorents, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 920 Sl Young Blvd, Oklahoma City, OK 73104
Phone: 405-271-5963    
Patrick Bronson Reeves, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 3366 Nw Expressway Ste 550, Oklahoma City, OK 73112
Phone: 405-942-5442    Fax: 405-942-6448
Dr. Jake Lee Evans, MD
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 800 Stanton L Young Blvd, Aat 6300, Oklahoma City, OK 73104
Phone: 405-271-5963    
Metri Haddaden, MD
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 800 Stanton L Young Blvd # 8425, Oklahoma City, OK 73104
Phone: 405-271-6173    Fax: 410-554-2184
Divya Sharma Divyadarshini, MD
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 800 Stanton L Young Blvd, Oklahoma City, OK 73104
Phone: 405-271-5963    
Dr. Philip Barton Miner, Jr., M.D.
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 1000 N Lincoln Blvd, Suite 210, Oklahoma City, OK 73104
Phone: 405-271-4644    Fax: 405-271-3296
Gary Lee Worcester, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 3433 Nw 56th St, Ste 400, Oklahoma City, OK 73112
Phone: 405-947-3341    

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.