DR. WEN S LAI M.D.
NPI 1689698870
Internal Medicine in Irving, TX

Q: What is Wen Lai's NPI number?

The NPI number for Wen Lai is 1689698870. It was assigned to this individual provider in the NPPES registry on July 27, 2006.

Q: What is Wen Lai's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Wen Lai was last updated on May 13, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.

Active since July 27, 2006PECOS Enrolled

701 TUSCAN DR, IRVING, TX 75039(214) 964-0600(214) 964-0638 Get Directions Write a Review

NPPES record last updated: May 13, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr. Wen S Lai M.d. NPPES

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

DR. WEN S LAI M.D. (NPI 1689698870) is an individual internal medicine provider in Irving, Texas, licensed in Texas (J8631) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and maintains a secondary practice location in Irving.

NPPES Registry Identity

NPI1689698870

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameDR. WEN S LAICredential: M.D.

Location Address701 TUSCAN DRIrving, TX 75039-4133

Mailing AddressPo Box 845347Dallas, TX 75284-7208 · (214) 964-0600 · Fax (214) 964-0638

Phone(214) 964-0600

Fax(214) 964-0638

Sole ProprietorNo

Enumeration DateJuly 27, 2006

Last NPPES UpdateMay 13, 2019

✔ NPI 1689698870 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 · J8631

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.

701 TUSCAN DR, Irving, TX 75039

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Secondary Practice Location 1

Location 1701 Tuscan DrIrving, TX 75039-4133 · Phone (214) 964-0600 · Fax (214) 964-0638

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Wen S Lai M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Wen Lai reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Of Texas Southwestern Medical Center At Dallas

8.5 mi

Rehabilitation

6011 HARRY HINES BLVD
Dallas, TX 75235

Reassigned Medicare billing, Texas enrollment
5,299 clinicians in this Medicare group

NPI 1043418205 (214) 645-0624

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75039 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.

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

8 suppliers22 claims60 services$6.66 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 20

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

TUSCAN SURGERY CENTER AT LAS COLINAS, LLC

Clinic/Center (Ambulatory Surgical)

701 TUSCAN DR, STE 100
IRVING, TX 75039

Dallas County (214) 442-1900

TEXAS DIGESTIVE DISEASE CONSULTANTS, PLLC

Internal Medicine (Gastroenterology)

701 TUSCAN DR, STE 110
IRVING, TX 75039

Dallas County (214) 496-1100

NICOLE LYNN THAXTON PT

Physical Therapist

701 TUSCAN DR
IRVING, TX 75039

Dallas County (214) 727-8820

COURTNEY BUZBEE PA-C

Physician Assistant

701 TUSCAN DR, STE 205
IRVING, TX 75039

Dallas County (972) 253-2505

JENNIFER L STAUD MD PA

Obstetrics & Gynecology

701 TUSCAN DR, SUITE 200
IRVING, TX 75039

Dallas County (972) 401-3200

DR. RIKIN S. PATEL MD

Internal Medicine (Gastroenterology)

701 TUSCAN DR, SUITE 110
IRVING, TX 75039

Dallas County (214) 496-1100

RYAN MCGEE PT

Physical Therapist

701 TUSCAN DR, SUITE 240
IRVING, TX 75039

Dallas County (972) 979-6577

DR. STEVEN M KATZMAN M.D.

Internal Medicine (Gastroenterology)

701 TUSCAN DR, SUITE #110
IRVING, TX 75039

Dallas County (214) 496-1100

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 Wen Lai's NPI number?

The NPI number for Wen Lai is 1689698870. It was assigned to this individual provider in the NPPES registry on July 27, 2006.

Where is Wen Lai located?

Wen Lai practices at 701 Tuscan Dr, Irving, TX 75039. The listed phone number is (214) 964-0600.

What is Wen Lai's specialty?

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

Is Wen Lai enrolled in Medicare?

Yes. Wen Lai is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Wen Lai's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Wen Lai reassigns Medicare benefits to University Of Texas Southwestern Medical Center At Dallas (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 Wen Lai'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 Wen Lai was last updated on May 13, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.