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THOMAS J WILLIAMSON MD
NPI 1013003201
Internal Medicine in Houston, TX

Active since October 05, 2006PECOS EnrolledAccepts Medicare Assignment
560 MEYERLAND PLAZA MALL, HOUSTON, TX 77096(713) 442-3222 Get Directions Write a Review

NPPES record last updated: June 23, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Thomas J Williamson Md NPPES

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

THOMAS J WILLIAMSON MD (NPI 1013003201) is an individual internal medicine provider in Houston, Texas, licensed in Texas (L0701) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and is a graduate of Ohio State University College Of Medicine (1997).

NPPES Registry Identity

NPI1013003201
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameTHOMAS J WILLIAMSONCredential: MD
Location Address560 MEYERLAND PLAZA MALLHouston, TX 77096-1615
Mailing Address11511 Shadow Creek ParkwayPearland, TX 77584-7298 · (713) 442-0000
Phone(713) 442-3222
Sole ProprietorNo
Medical School CMSOhio State University College Of MedicineGraduated 1997
Enumeration DateOctober 5, 2006
Last NPPES UpdateJune 23, 2021
NPPES CertifiedJune 23, 2021
✔ NPI 1013003201 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in TX · L0701
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
560 MEYERLAND PLAZA MALL, Houston, TX 77096
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Other Identifiers 1

Medicaid143528103TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.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

Thomas J Williamson 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 ID8527963230
PECOS Enrollment IDI20031205000087
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77096 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
$134.06 typical visit price
range $58.24 – $176.98
Typical copayment $33.51 (range $14.56 – $44.24)
Most-billed visit code 99204
Established Patient
$102.71 typical visit price
range $18.60 – $143.93
Typical copayment $25.67 (range $4.65 – $35.98)
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 20

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

PADMAVATHI VYSTNAVI KARRI MD
Dermatology
560 MEYERLAND PLAZA MALL
HOUSTON, TX 77096
Harris County (713) 442-3222
JESSICA KOH LEWIS MD
Pediatrics
560 MEYERLAND PLAZA MALL
HOUSTON, TX 77096
Harris County (713) 442-3222
KEMI ADA SELLS LCSW
Social Worker (Clinical)
560 MEYERLAND PLAZA MALL
HOUSTON, TX 77096
Harris County (713) 442-3222
RAWAN ABU-ELHEIGA
Pharmacist
560 MEYERLAND PLAZA MALL
HOUSTON, TX 77096
Harris County (713) 442-3200
RONDA K ELSENBROOK R.D., L.D.
Dietitian, Registered
560 MEYERLAND PLAZA MALL
HOUSTON, TX 77096
Harris County (713) 442-3222
DR. KUANGZOO SAMUEL HUANG M.D.
Family Medicine
560 MEYERLAND PLAZA MALL
HOUSTON, TX 77096
Harris County (713) 442-3222
MARIA ELISE GILLES APRN-CNP, FNP-C
Nurse Practitioner (Family)
560 MEYERLAND PLAZA MALL
HOUSTON, TX 77096
Harris County (713) 442-3222
DR. ISABEL TIONGSON GARCIA MD
Family Medicine
560 MEYERLAND PLAZA MALL
HOUSTON, TX 77096
Harris County (713) 442-3222

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 Thomas Williamson's NPI number?

The NPI number for Thomas Williamson is 1013003201. It was assigned to this individual provider in the NPPES registry on October 5, 2006.

Where is Thomas Williamson located?

Thomas Williamson practices at 560 Meyerland Plaza Mall, Houston, TX 77096. The listed phone number is (713) 442-3222.

What is Thomas Williamson's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Thomas Williamson enrolled in Medicare?

Yes. Thomas 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 Thomas Williamson accept?

Health plans from UnitedHealthcare list Thomas 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.

When was this NPI record last updated?

The NPPES record for Thomas Williamson was last updated on June 23, 2021. 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.