P Praxis·MD
● Active Type 1 · Individual

Willis Crocker Maddrey, MD

Internal Medicine·Dallas, TX· NPI 1528037009 · Enumerated 2006 · 20 years on NPI
Maddrey is 1 of 10 internal medicine providers in Dallas and 1 of 29 in Texas.
NPI age
20 years
Enumerated 2006-03-16
Primary specialty
Internal Medicine
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2011-09-28
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org

How this provider compares

Across 29 active internal medicine providers in Texas.

NPI age
20 years
≈ at median (19 yr)
State licenses
1 state
17% of peers hold multiple states
Subspecialties
0
62% of peers hold subspecialties

NPI lifetime · 2006 → 2026

2006-03Enumerated in NPPES
2006 2026

Where they practice

Practice location
5323 Harry Hines Blvd
Dallas, TX 753907208
📞 2146450624fax 2146450078
Mailing address
Po Box 845347
Dallas, TX 752845347
📞 2146450624fax 2146450078

Specialties

  • Internal Medicine Primary
    The discipline of Hepatology encompasses the structure, function, and diseases of the liver and biliary tract. The American Board of Internal Medicine considers Hepatology part of the subspecialty of gastroenterology. Physicians who...
    TX license #H9737 taxonomy 207RI0008X

Identifiers

TypeValueNotes
05 (TX) 045986901

Practice context

Part of a multi-provider practice. 4085 other active providers share this practice address in NPPES.

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How to verify this provider

  1. Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
  2. Check the state license is currently active.State licensing boards publish current status; NPPES does not.
  3. Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.

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