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LESLIE WILLIAMS D.O.
NPI 1336569417
Family Medicine in Mustang, OK

Active since April 16, 2014PECOS EnrolledAccepts Medicare Assignment
201 S SARA RD STE 200, MUSTANG, OK 73064(405) 578-3250(405) 578-3299 Get Directions Write a Review

NPPES record last updated: November 10, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 10, 2020, Sep 12, 2017, Aug 31, 2017 (3 updates tracked since 2017).

About Leslie Williams D.o. NPPES

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

LESLIE WILLIAMS D.O. (NPI 1336569417) is an individual family medicine provider in Mustang, Oklahoma, licensed in Oklahoma (5835) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS, is affiliated with Ssm Health St Anthony Hospital - Oklahoma City, and is a graduate of Oklahoma State University College Of Osteopathic Medicine (2014).

NPPES Registry Identity

NPI1336569417
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameLESLIE WILLIAMSCredential: D.O.
Location Address201 S SARA RD STE 200Mustang, OK 73064-4308
Mailing Address201 S Sara Road, Suite 200Mustang, OK 73064 · (405) 578-3250 · Fax (405) 578-3299
Phone(405) 578-3250
Fax(405) 578-3299
Sole ProprietorNo
Medical School CMSOklahoma State University College Of Osteopathic MedicineGraduated 2014
Enumeration DateApril 16, 2014
Last NPPES UpdateNovember 10, 20203 updates tracked since enumeration
NPPES CertifiedNovember 10, 2020
✔ NPI 1336569417 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in OK · 5835
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
201 S SARA RD STE 200, Mustang, OK 73064
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Other Identifiers 1

Medicaid200614220AOK

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter from Superior HealthPlan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Leslie Williams D.o. 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 ID1052697745
PECOS Enrollment IDI20170412000772
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Leslie Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ssm Health Care Of Oklahoma, Inc
9.0 mi
Psychiatry
2129 SW 59TH ST
Oklahoma City, OK 73119
  • Reassigned Medicare billing, Oklahoma enrollment
  • 212 clinicians in this Medicare group
NPI 1184723678 (405) 713-5790
Saints Medical Group, LLC
14 mi
Family Medicine
777 NW 63RD ST STE 452
Oklahoma City, OK 73116
  • Reassigned Medicare billing, Oklahoma enrollment
  • 507 clinicians in this Medicare group
NPI 1437195922 (405) 231-3857

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
320 services150 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
126 services126 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
26 services25 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
16 services16 patients

Hospital Affiliations CMS Care Compare 2

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

Ssm Health St Anthony Hospital - Oklahoma City

Acute Care Hospitals · Oklahoma City, OK
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number370037
Location1000 North Lee AvenueOklahoma City, OK 73101 · Oklahoma County
Emergency services Birthing friendly

O U Medical Center

Acute Care Hospitals · Oklahoma City, OK
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number370093
Location700 NE 13th StreetOklahoma City, OK 73104 · Oklahoma County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 73064 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.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
9 suppliers19 claims42 services$6.32 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 4

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

DR. RICHARD A LOWRANCE III MD
Family Medicine
201 S SARA RD STE 200
MUSTANG, OK 73064
Canadian County (405) 578-3250
DR. MIRIAM ELAINE THOMPSON-MATHEW MD
Family Medicine
201 S SARA RD STE 200
MUSTANG, OK 73064
Canadian County (405) 578-3250
DENISE RENEE BRANSON PA-C
Physician Assistant
201 S SARA RD STE 200
MUSTANG, OK 73064
Canadian County (405) 578-3250
THOMAS WAYNE WISEMAN DO
Family Medicine
201 S SARA RD STE 200
MUSTANG, OK 73064
Canadian County (405) 578-3250

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 Leslie Williams's NPI number?

The NPI number for Leslie Williams is 1336569417. It was assigned to this individual provider in the NPPES registry on April 16, 2014.

Where is Leslie Williams located?

Leslie Williams practices at 201 S Sara Rd Ste 200, Mustang, OK 73064. The listed phone number is (405) 578-3250.

What is Leslie Williams's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Leslie Williams enrolled in Medicare?

Yes. Leslie Williams 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.

Which organizations bill Medicare for Leslie Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Leslie Williams reassigns Medicare benefits to 2 organizations: Ssm Health Care Of Oklahoma, Inc (Oklahoma City, OK) and Saints Medical Group, LLC (Oklahoma City, OK). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Leslie Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Leslie Williams accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 4 other insurers list Leslie Williams 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 Leslie Williams affiliated with any hospitals?

According to CMS data, Leslie Williams is affiliated with Ssm Health St Anthony Hospital - Oklahoma City and O U Medical Center.

When was this NPI record last updated?

The NPPES record for Leslie Williams was last updated on November 10, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.