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Dion Lee , LSA

Physician Assistant - Surgical β€’ Lancaster, TX

Active NPI 1154772457 Individual Practitioner Female Practitioner
Practice location in NPPES

439 Francis St
Lancaster, TX 75146

Call 2142272457 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

439 Francis St

Lancaster, TX 75146

Telephone 2142272457
Fax 2147640880
Organization at the Same NPPES Address or Phone
Principle Assist, Llc Facility NPI 1386121572

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

What Public CMS Data Show

Physician Assistant - Surgical: NPPES taxonomy is a reported classification, not proof of board certification.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $21.82 in 2025

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2025.

Guide: How to read an Open Payments record

NPI first issued

2016

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Compared with the same specialty in Lancaster and Texas

1 active clinicians are listed under Physician Assistant - Surgical with a practice address in Lancaster, TX (1,350 in Texas).

Addresses are self-reported to NPPES and may be out of date.

Sources: CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments Β· Program Year 2025

Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $21.82.

Manufacturer Payment Nature Product Type Amount ($)
Pacira Pharmaceuticals Incorporated
Food and Beverage
In-kind items and services
Exparel General $21.82

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-03-05
Physician Assistant - Surgical Primary Specialty

NUCC Taxonomy Code: 363AS0400X

License # reported to NPPES TX SA00782
Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Texas Medical Board.
Look Up on State Board Site

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

4 listed
Erica Mumford , PA

Physician Assistant

NPI 1104590710

Physician Assistant

Saori Nakagawa , NP

Nurse Practitioner

NPI 1063817690

Nurse Practitioner

Michael Timm , PA-C

Physician Assistant - Surgical

NPI 1053462978

Physician Assistant (Certified)

Ann Tyrrell , ANP

Nurse Practitioner

NPI 1023003829

Adult Nurse Practitioner

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

16 Historical Events
πŸ‘€
Provider Name / Credentials Updated March 05, 2026

Recorded as DION LEE, LSA

πŸ‘€
Provider Name / Credentials Updated December 16, 2019

Recorded as DION LEATHERS, LSA

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) December 16, 2019

Physician Assistant (license number reported to NPPES: TX SA00782)

πŸ“
Updated Practice Location July 20, 2018

Registered at 439 FRANCIS ST, LANCASTER, TX 75146 (Tel: 2253158263)

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) July 20, 2018

Specialist/Technologist, Other

βœ…
NPI Profile Active January 16, 2018

NPI status registered as active in NPPES database

πŸ“
Updated Practice Location January 16, 2018

Registered at 439 FRANCIS ST, LANCASTER, TX 751462319 (Tel: 2253158263)

πŸ“
Updated Business Mailing Address January 16, 2018

Registered at 439 FRANCIS ST, LANCASTER, TX 751462319 (Tel: 2253158263)

πŸ‘€
Provider Name / Credentials Updated January 16, 2018

Recorded as DION LEATHERS, CFSA

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) January 16, 2018

Specialist/Technologist, Other

βœ…
NPI Profile Active September 26, 2016

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) September 26, 2016

Registered at 439 FRANCIS ST, LANCASTER, TX 751462319 (Tel: 2253158263)

πŸ“
Business Mailing Address (Initial Record) September 26, 2016

Registered at 439 FRANCIS ST, LANCASTER, TX 751462319 (Tel: 2253158263)

πŸ‘€
Provider Name / Credentials (Initial Record) September 26, 2016

Recorded as DION LEATHERS, CFSA

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) September 26, 2016

Specialist/Technologist, Other

🟒
Initial NPI Registration & Enumeration June 28, 2016

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1154772457
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 28, 2016
Last Update: March 05, 2026
Sole Proprietor: No

Mailing Address

439 Francis St

Lancaster, TX 751462319

Phone: 4694313414

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.