NPI age
20 years
Enumerated 2006-03-17
● Active
Type 1 · Individual
Nicholaos C Bellos, MD
Bellos is 1 of 1216 internal medicine providers in Dallas 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
2024-09-20
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
2006-03Enumerated in NPPES
2006
2026
Where they practice
Practice location
2603 Oak Lawn Ave, 500
Dallas, TX 752194021
Mailing address
2603 Oak Lawn Ave, 500
Dallas, TX 752194021
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,...
-
Internal MedicineAn internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 128539706 | |
| 05 (TX) | 128539709 | |
| 01 | 8A9630 | BCBS |
| 01 | 4273577 | AETNA |
Practice context
Part of a multi-provider practice. 10 other active providers share this practice address in NPPES.
Recently enumerated nearby: 5 new internal medicine providers have been added in Dallas in the last 180 days.
See all →
Provyx · Custom healthcare lists
Need all 12343 Internal Medicine providers in Texas?
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.