Dr John David Williams, MD - Medicare Internal Medicine in Stillwater, OK

Dr John David Williams, MD is a medicare enrolled "Internal Medicine" physician in Stillwater, Oklahoma. He went to University Of Oklahoma College Of Medicine and graduated in 1981 and has 43 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Stillwater Medical Center Authority and his current practice location is 608 S Hester St, Stillwater, Oklahoma. You can reach out to his office (for appointments etc.) via phone at (405) 377-8000.

Dr John David Williams is licensed to practice in Oklahoma (license number 13127) 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 1528068426.

Contact Information

Dr John David Williams, MD
608 S Hester St,
Stillwater, OK 74074-4516
(405) 377-8000
(405) 377-8040

Map and Direction




Physician's Profile

Full NameDr John David Williams
GenderMale
SpecialityInternal Medicine
Experience43 Years
Location608 S Hester St, Stillwater, 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 John David Williams attended and graduated from University Of Oklahoma College Of Medicine in 1981
  NPI Data:
  • NPI Number: 1528068426
  • Provider Enumeration Date: 07/21/2005
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 1759444045
  • Enrollment ID: I20090113000459

Medical Identifiers

Medical identifiers for Dr John David Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1528068426NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 13127 (Oklahoma)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Elara Caring XviiiTulsa, OKHome health agency
Stillwater Medical CenterStillwater, OKHospital

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 John David Williams allows following entities to bill medicare on his behalf.
Entity NameStillwater Medical Center Authority
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1558377135
PECOS PAC ID: 2365353794
Enrollment ID: O20040525001304
Entity NameAssociates Of Medicine/john D Williams,md,pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1770733917
PECOS PAC ID: 7214090505
Enrollment ID: O20090113000443

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 John David 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
Dr John David Williams, MD
608 S Hester St,
Stillwater, OK 74074-4516

Ph: (405) 377-8000
Dr John David Williams, MD
608 S Hester St,
Stillwater, OK 74074-4516

Ph: (405) 377-8000

Reviews and Comments


Internal Medicine Doctors in Stillwater, OK

Val Gene Iven, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 170 Athletics Center, Osu Sportsmedicine, Stillwater, OK 74078
Phone: 405-744-5430    Fax: 405-744-4945
Terry N Brown, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1815 W 6th Ave, Stillwater, OK 74074
Phone: 405-743-7300    Fax: 405-743-7290
Dr. Michael Warren Strange, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1202 W Farm Rd, Stillwater, OK 74078
Phone: 405-744-7016    Fax: 405-744-6556
Matthew Loyd Arnold, DO
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1323 W 6th Ave, Stillwater, OK 74074
Phone: 405-784-5842    
Dr. Bruce Earl Baugher, D.O.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1323 W 6th Ave, Stillwater, OK 74074
Phone: 405-372-1480    
Jennifer Gail Gallaway, ARNP
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 821 S Pine St, Stillwater, OK 74074
Phone: 405-533-1332    Fax: 405-533-1704
Senthil Nachimuthu, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1323 W 6th Ave Ste 201, Stillwater, OK 74074
Phone: 405-533-3010    

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.