P Praxis·MD
● Active Type 1 · Individual

DR. John Howell Hamilton, M. D.

General Practice·San Antonio, TX· NPI 1487034831 · Enumerated 2015 · 10 years on NPI
Hamilton is 1 of 148 general practice providers in San Antonio and 1 of 2087 in Texas.
NPI age
10 years
Enumerated 2015-06-01
Primary specialty
General Practice
Plus 1 subspecialty
Licensed in
FL, TX
2 states
Status
Active
No deactivations on record
Last NPPES update
2024-11-27
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file

How this provider compares

Across 2087 active general practice providers in Texas.

NPI age
10 years
≈ at median (10 yr)
State licenses
2 states
Top 95% — 4% of peers are multi-state
Subspecialties
1
In the 33% of peers with subspecialties

NPI lifetime · 2015 → 2026

2015-06Enumerated in NPPES
2015 2026

Where they practice

Practice location
111 Dallas St
San Antonio, TX 78205
📞 2102977000
Mailing address
15544 Escarpment Oak
Helotes, TX 780235126
📞 9014093481

Additional practice locations

1 secondary location on file with NPPES.

Location 2
10198 Sw Village Pkwy Ste 105
Port St Lucie, FL 349872592
📞 7729344990fax 7729344991

Specialties

  • General Practice Primary
    A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.
    FL license #ME165198 taxonomy 208D00000X
  • Emergency Medicine
    An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department....
    TX license #R4233 taxonomy 207P00000X

Practice context

Part of a multi-provider practice. 109 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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