NPI age
20 years
Enumerated 2006-02-22
● Active
Type 1 · Individual
Guido Calderon, MD
Calderon is 1 of 39 internal medicine providers in New Braunfels and 1 of 12343 in Texas.
Primary specialty
Internal Medicine
Plus 1 subspecialty
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2025-06-18
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 12343 active internal medicine providers in Texas.
NPI age
20 years
↑ 3 yr above median (17 yr)
State licenses
1 state
12% of peers hold multiple states
Subspecialties
1
In the 33% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-02Enumerated in NPPES
2006
2026
Where they practice
Practice location
29924 Fm 3009
New Braunfels, TX 781322637
Mailing address
Po Box 310682
New Braunfels, TX 781310682
Specialties
-
Internal Medicine PrimaryA 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,...
-
HospitalistHospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (TX) | 8W2432 | BC/BS |
| 05 (TX) | 120666614 |
Practice context
Part of a multi-provider practice. 6 other active providers share this practice address in NPPES.
Recently enumerated nearby: 1 new internal medicine provider has been added in New Braunfels in the last 180 days.
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Request a quote →How to verify this provider
- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.