Elwood Fray Williams, MD - Medicare Sleep Medicine in Oklahoma City, OK

Elwood Fray Williams, MD is a medicare enrolled "Internal Medicine - Sleep Medicine" physician in Oklahoma City, Oklahoma. He went to University Of Mississippi School Of Medicine and graduated in 1984 and has 40 years of diverse experience with area of expertise as Sleep Medicine. He is a member of the group practice Oklahoma Sleep Institute Clinic Okc Llc Osi Clinic and his current practice location is 5401 N Portland Ave, Suite 510, Oklahoma City, Oklahoma. You can reach out to his office (for appointments etc.) via phone at (405) 604-4210.

Elwood Fray Williams is licensed to practice in Oklahoma (license number 17492) 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 1366542896.

Contact Information

Elwood Fray Williams, MD
5401 N Portland Ave, Suite 510,
Oklahoma City, OK 73112-1670
(405) 604-4210
(405) 604-4241

Map and Direction




Physician's Profile

Full NameElwood Fray Williams
GenderMale
SpecialitySleep Medicine
Experience40 Years
Location5401 N Portland Ave, 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:
  • Elwood Fray Williams attended and graduated from University Of Mississippi School Of Medicine in 1984
  NPI Data:
  • NPI Number: 1366542896
  • Provider Enumeration Date: 09/24/2006
  • Last Update Date: 08/25/2015
  Medicare PECOS Information:
  • PECOS PAC ID: 8224008305
  • Enrollment ID: I20070714000082

Medical Identifiers

Medical identifiers for Elwood Fray Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1366542896NPI-NPPES
100112650AMedicaidOK
290004188OtherOKRAILROAD MC

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RP1001XInternal Medicine - Pulmonary Disease 17492 (Oklahoma)Secondary
207RS0012XInternal Medicine - Sleep Medicine 17492 (Oklahoma)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Oklahoma Sleep Institute Clinic Okc Llc Osi Clinic71130707314

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. Elwood Fray Williams allows following entities to bill medicare on his behalf.
Entity NameDeaconess Physician Services Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1427017862
PECOS PAC ID: 0840232070
Enrollment ID: O20050526000824
Entity NameOklahoma Sleep Institute Clinic Okc Llc Osi Clinic
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043454622
PECOS PAC ID: 7113070731
Enrollment ID: O20090729000856

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. Elwood Fray Williams 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
Elwood Fray Williams, MD
5401 N Portland Ave, Suite 510,
Oklahoma City, OK 73112-2121

Ph: (405) 604-4210
Elwood Fray Williams, MD
5401 N Portland Ave, Suite 510,
Oklahoma City, OK 73112-1670

Ph: (405) 604-4210

Reviews and Comments


Internal Medicine Doctors in Oklahoma City, OK

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Divya Sharma Divyadarshini, MD
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Gary Lee Worcester, MD
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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.