NPI age
20 years
Enumerated 2006-01-05
● Active
Type 1 · Individual
Tirso A Castillo, MD
Castillo is 1 of 8 internal medicine providers in Dublin and 1 of 643 in Georgia.
Primary specialty
Internal Medicine
Licensed in
GA
1 state
Status
Active
No deactivations on record
Last NPPES update
2023-07-12
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 643 active internal medicine providers in Georgia.
NPI age
20 years
≈ at median (19 yr)
State licenses
1 state
19% of peers hold multiple states
Subspecialties
0
30% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-01Enumerated in NPPES
2006
2026
Where they practice
Practice location
111 Fairview Park Dr
Dublin, GA 310212501
Mailing address
Po Box 1528
Dublin, GA 310401528
Additional practice locations
1 secondary location on file with NPPES.
Location 2
677 Church St Ne
Marietta, GA 300601101
Specialties
-
Internal Medicine PrimaryAn internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (GA) | 000872066A | |
| 01 (GA) | 52420599-002 | BCBS |
| 01 (GA) | 681242 | FIRST HEALTH |
| 01 (GA) | 4653853 | AETNA |
| 01 (GA) | 1007287 | UNITED HEALTHCARE |
Practice context
Part of a multi-provider practice. 3 other active providers share this practice address in NPPES.
Provyx · Custom healthcare lists
Need all 643 Internal Medicine providers in Georgia?
Get the full list as a CSV with verified work emails, direct phones, and LinkedIn URLs.
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.