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CHARLES E WILLIS MD
NPI 1336142983
Pain Medicine - Pain Medicine in Desoto, TX

Active since May 27, 2005PECOS EnrolledAccepts Medicare Assignment
911 YORK DR STE 205, DESOTO, TX 75115(214) 623-0550 Get Directions Write a Review

NPPES record last updated: January 27, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 27, 2026, Feb 10, 2020 (2 updates tracked since 2020).

About Charles E Willis Md NPPES

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

CHARLES E WILLIS MD (NPI 1336142983) is an individual pain medicine provider in Desoto, Texas, licensed in Texas (J0365) and active in the NPI registry since May 2005. He is enrolled in Medicare PECOS, maintains a secondary practice location in Houston, and is a graduate of University Of Texas Medical School At Houston (1990).

NPPES Registry Identity

NPI1336142983
Entity TypeIndividualMale
Primary Taxonomy208VP0000X
Provider Legal NameCHARLES E WILLISCredential: MD
Location Address911 YORK DR STE 205Desoto, TX 75115-2064
Mailing AddressPo Box 1347Addison, TX 75001-1347
Phone(214) 623-0550
Sole ProprietorNo
Medical School CMSUniversity Of Texas Medical School At HoustonGraduated 1990
Enumeration DateMay 27, 2005
Last NPPES UpdateJanuary 27, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 27, 2026
✔ NPI 1336142983 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPain Medicine · Pain MedicineAllopathic & Osteopathic Physicians
Taxonomy Code208VP0000X
License✔ Licensed in TX · J0365
Definition
Pain Medicine is a primary medical specialty based on a distinct body of knowledge and a well-defined scope of clinical practice that is founded on science, research and education. It is concerned with the study of pain, the prevention of pain, and the evaluation, treatment, and rehabilitation of persons in pain. A comprehensive evaluation incorporates the physical, psychological, cognitive and socio-cultural contributions to pain. The treatment protocol may include pharmacological, invasive, behavioral, cognitive, rehabilitative and complementary strategies provided in a concurrent focused and patient specific manner. The pain medicine physician often serves the patient as a frontline physician regarding their pain, but also may serve as a consultant to other physicians, direct an interdisciplinary/multidisciplinary treatment team, conduct research, or advocate for the patient's pain care with public and private agencies. The Pain Medicine physician may work in variety of settings including office, clinic, hospital, university, or governmental/public agencies.
Also ListedAnesthesiology · Pain MedicineTaxonomy 207LP2900X · License J0365 (TX)
911 YORK DR STE 205, Desoto, TX 75115
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Secondary Practice Location 1

Location 115355 Vantage Pkwy W Ste 330Houston, TX 77032-1975 · Phone (214) 623-0550

Other Identifiers 2

Medicaid134219808TX
Other00R03PTX · Bcbs

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

Charles E Willis Md 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 ID5698664498
PECOS Enrollment IDI20070517000123
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 Reassignment

Medicare enrollment records show Charles Willis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Charles E. Willis II, M.D., P.A.
2.5 mi
Pain Medicine
5201 S WESTMORELAND RD
Dallas, TX 75237
  • Reassigned Medicare billing, Texas enrollment
  • Medicare enrollment name: Charles E Willis Ii MD PA
NPI 1295862431 (214) 623-0550

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 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.

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.
92 services20 patients
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.
28 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75115 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
$131.01 typical visit price
range $57.18 – $172.86
Typical copayment $32.75 (range $14.29 – $43.21)
Most-billed visit code 99204
Established Patient
$100.80 typical visit price
range $18.48 – $141.20
Typical copayment $25.20 (range $4.62 – $35.30)
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.

Other Providers at the Same Location NPPES

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

WILLIAM CORNELIUS LOVE DC
Chiropractor
911 YORK DR STE 205
DESOTO, TX 75115
Dallas County (214) 623-0550

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 Charles Willis's NPI number?

The NPI number for Charles Willis is 1336142983. It was assigned to this individual provider in the NPPES registry on May 27, 2005.

Where is Charles Willis located?

Charles Willis practices at 911 York Dr Ste 205, Desoto, TX 75115. The listed phone number is (214) 623-0550.

What is Charles Willis's specialty?

The primary specialty registered for this NPI is Pain Medicine with taxonomy code 208VP0000X.

Is Charles Willis enrolled in Medicare?

Yes. Charles Willis 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 organization bills Medicare for Charles Willis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Charles Willis reassigns Medicare benefits to Charles E. Willis II, M.D., P.A. (Dallas, TX). The 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 Charles Willis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Charles Willis was last updated on January 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.