NPI age
20 years
Enumerated 2006-04-22
● Active
Type 1 · Individual
Calvin Lee Dixon SR., MD
Dixon is 1 of 1 internal medicine providers in Duncanville and 1 of 1318 in Texas.
Primary specialty
Internal Medicine
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2011-08-09
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 1318 active internal medicine providers in Texas.
NPI age
20 years
↑ 2 yr above median (18 yr)
State licenses
1 state
15% of peers hold multiple states
Subspecialties
0
57% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-04Enumerated in NPPES
2006
2026
Where they practice
Practice location
315 S Cockrell Hill Rd, Suite 102
Duncanville, TX 751164041
Mailing address
315 S Cockrell Hill Rd, Suite 102
Duncanville, TX 751164041
Specialties
-
Internal Medicine PrimaryAn internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 033668701 |
Practice context
Part of a multi-provider practice. 4 other active providers share this practice address in NPPES.
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- 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.