JOHN ROSS WILLIAMSON APRN, NP-C
NPI 1386050441
Nurse Practitioner in Cordell, OK

Active since July 09, 2014PECOS EnrolledAccepts Medicare Assignment
81.02/100
CMS Quality Rating
1220 N GLENN ENGLISH ST, CORDELL, OK 73632(580) 832-3339 Get Directions Write a Review

NPPES record last updated: January 9, 2020. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About John Ross Williamson Aprn, Np-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN ROSS WILLIAMSON APRN, NP-C (NPI 1386050441) is an individual nurse practitioner in Cordell, Oklahoma, licensed in Oklahoma (102511) and active in the NPI registry since July 2014. He is enrolled in Medicare PECOS, is affiliated with Community Hospital, Llc, and is a graduate of Other (2014).

NPPES Registry Identity

NPI1386050441
Entity TypeIndividualMale
Primary Taxonomy363L00000X
Provider Legal NameJOHN ROSS WILLIAMSONCredential: APRN, NP-C
Location Address1220 N GLENN ENGLISH STCordell, OK 73632-2010
Mailing Address12008 Cantle RdOklahoma City, OK 73120-8028 · (405) 255-9056 · Fax (405) 422-2521
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateJuly 9, 2014
Last NPPES UpdateJanuary 9, 2020
NPI 1386050441 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License Licensed in OK · 102511
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
1220 N GLENN ENGLISH ST, Cordell, OK 73632

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

John Ross Williamson Aprn, Np-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9234452418
PECOS Enrollment IDI20141218001916
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
49 services47 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
48 services38 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Community Hospital, LLC

Acute Care Hospitals · Oklahoma City, OK
5/5 CMS rating
OwnershipPhysician
CMS Certification Number370203
Location3100 Southwest 89th StreetOklahoma City, OK 73159 · Oklahoma County
Emergency services

Clinton Regional Hospital

Acute Care Hospitals · Clinton, OK
OwnershipGovernment - Local
CMS Certification Number370245
Location100 N 30th StreetClinton, OK 73601 · Custer County
Emergency services

Cordell Memorial Hospital

Critical Access Hospitals · Cordell, OK
OwnershipGovernment - Hospital District or Authority
CMS Certification Number371325
Location1220 North Glenn English StreetCordell, OK 73632 · Washita County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 73632 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$82.46 typical visit price
range $53.00 – $162.61
Typical copayment $20.61 (range $13.25 – $40.65)
Most-billed visit code 99203
Established Patient
$94.27 typical visit price
range $16.68 – $132.40
Typical copayment $23.56 (range $4.17 – $33.10)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

81.02/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality65.5
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner
1220 N GLENN ENGLISH ST
CORDELL, OK 73632

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Williamson's NPI number?

The NPI number for John Williamson is 1386050441. It was assigned to this individual provider in the NPPES registry on July 9, 2014.

Where is John Williamson located?

John Williamson practices at 1220 N Glenn English St, Cordell, OK 73632. The listed phone number is (580) 832-3339.

What is John Williamson's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is John Williamson enrolled in Medicare?

Yes. John Williamson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does John Williamson accept?

Health plans from Blue Cross and Blue Shield of Oklahoma, Medica, Mending Health and Oscar Insurance Company list John Williamson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is John Williamson affiliated with any hospitals?

According to CMS data, John Williamson is affiliated with Community Hospital, LLC, Clinton Regional Hospital and Cordell Memorial Hospital.

When was this NPI record last updated?

The NPPES record for John Williamson was last updated on January 9, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.