John Ross Williamson, APRN, NP-C - Medicare Nurse Practitioner in Cordell, OK

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John Ross Williamson, APRN, NP-C is a medicare enrolled "Nurse Practitioner" in Cordell, Oklahoma. He graduated from nursing school in 2014 and has 12 years of diverse experience with area of expertise as Nurse Practitioner. He is a member of the group practice Emergency Physicians Of Mid-america Pc, Clinton Hospital Authority and his current practice location is 1220 N Glenn English St, Cordell, Oklahoma. You can reach out to his office (for appointments etc.) via phone at (580) 832-3339.

John Ross Williamson is licensed to practice in Oklahoma (license number 102511) 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 1386050441.

Contact Information

John Ross Williamson, APRN, NP-C
1220 N Glenn English St,
Cordell, OK 73632-2010
(580) 832-3339
Not Available

Map and Direction




Provider's Profile

Full NameJohn Ross Williamson
GenderMale
SpecialityNurse Practitioner
Experience12 Years
Location1220 N Glenn English St, Cordell, 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:
  • John Ross Williamson graduated from nursing school in 2014
  NPI Data:
  • NPI Number: 1386050441
  • Provider Enumeration Date: 07/09/2014
  • Last Update Date: 01/09/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 9234452418
  • Enrollment ID: I20141218001916

Medical Identifiers

Medical identifiers for John Ross Williamson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1386050441NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363L00000XNurse Practitioner 102511 (Oklahoma)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Cordell Memorial HospitalCordell, OKHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Emergency Physicians Of Mid-america Pc206263866181
Clinton Hospital Authority509216387314

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. John Ross Williamson allows following entities to bill medicare on his behalf.
Entity NameShawnee Medical Center Clinic, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881648285
PECOS PAC ID: 3870405434
Enrollment ID: O20031103000239
Entity NameCommunity Hospital Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1275593337
PECOS PAC ID: 2466494646
Enrollment ID: O20050527000098
Entity NameCordell Memorial Hospital 0189
Entity TypePart A Provider - Critical Access Hospital
Entity IdentifiersNPI Number: 1750384426
PECOS PAC ID: 1254239197
Enrollment ID: O20061104000238
Entity NameSaints Medical Group, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437195922
PECOS PAC ID: 7012914898
Enrollment ID: O20061109000189
Entity NameEmergency Services Of Oklahoma Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215249891
PECOS PAC ID: 8123209012
Enrollment ID: O20110225000085
Entity NameEmergency Physicians Of Mid-america Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1063825297
PECOS PAC ID: 2062638661
Enrollment ID: O20140716001692
Entity NameRural Wellness Fairfax Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1295362564
PECOS PAC ID: 3678904752
Enrollment ID: O20200506001548
Entity NameSouthern Plains Medical Center Of Garvin County Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1083280622
PECOS PAC ID: 5496155582
Enrollment ID: O20210617000272
Entity NameRural Wellness Anadarko Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538825120
PECOS PAC ID: 3274926100
Enrollment ID: O20220216002693
Entity NameClinton Hospital Authority
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1528812237
PECOS PAC ID: 5092163873
Enrollment ID: O20240530000462

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. John Ross Williamson 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
John Ross Williamson, APRN, NP-C
12008 Cantle Rd,
Oklahoma City, OK 73120-8028

Ph: (405) 255-9056		John Ross Williamson, APRN, NP-C
1220 N Glenn English St,
Cordell, OK 73632-2010

Ph: (580) 832-3339

Reviews and Comments


Nurse Practitioner Nurses in Cordell, OK

Mr. Darrell Ray Hill, CNP
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 1220 N Glenn English St, Cordell, OK 73632
Phone: 580-832-3339    
Aprill Renea Ridgeway, FNP
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 1109 N Glenn L English St, Cordell, OK 73632
Phone: 580-832-2222    Fax: 580-832-2223
Kelsey Schones, APRN, WHNP-BC
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 1109 N Glenn English St, Cordell, OK 73632
Phone: 580-832-2222    Fax: 580-832-2223

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.