NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark S Lee, MD

Radiation Oncology Physician in Wichita Falls, TX · enumerated 2006 · practices at Oncology Pharmacy Services Inc.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1104930312

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Mark S Lee
Credential MD
Sex Male
Practice address 5400 Kell West Blvd, Texoma Cancer Center, Wichita Falls, TX, 76310
Fax (940) 692-2042
Enumeration date Aug 18, 2006
Last updated in NPPES Jun 20, 2008

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License G3547 (TX) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
127964809 Medicaid TX -
200057390A Medicaid OK -
127964810 Medicaid TX -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Mark Lee?
The National Provider Identifier (NPI) for Mark Lee is 1104930312, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Lee practice?
The practice location on file with NPPES is in Wichita Falls, TX. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-20.