P Praxis·MD
● Active Type 1 · Individual

William James Kelly, MD

Internal Medicine·San Antonio, TX· NPI 1720422421 · Enumerated 2013 · 13 years on NPI
Kelly is 1 of 47 internal medicine providers in San Antonio and 1 of 576 in Texas.
NPI age
13 years
Enumerated 2013-04-24
Primary specialty
Internal Medicine
Plus 2 subspecialties
Licensed in
TX, DC
2 states
Status
Active
No deactivations on record
Last NPPES update
2025-12-08
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file

How this provider compares

Across 576 active internal medicine providers in Texas.

NPI age
13 years
↓ 6 yr below median (19 yr)
State licenses
2 states
Top 81% — 18% of peers are multi-state
Subspecialties
1
In the 46% of peers with subspecialties

NPI lifetime · 2013 → 2026

2013-04Enumerated in NPPES
2013 2026

Where they practice

Practice location
7979 Wurzbach Rd
San Antonio, TX 782294427
📞 2104501812
Mailing address
3800 Reservoir Rd Nw, Department Of Hematology/oncology
Washington, DC 200072113
📞 2024447094fax 2024448829

Additional practice locations

1 secondary location on file with NPPES.

Location 2
30 Convent Dr
Bethesda, MD 208920001
📞 3014022592

Specialties

  • Internal Medicine Primary
    An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and...
    TX license #S7897 taxonomy 207RX0202X
  • Internal Medicine
    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,...
    DC license #MD043981TX license #BP10047120 taxonomy 207R00000X

Practice context

Part of a multi-provider practice. 107 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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