NPI age
19 years
Enumerated 2006-06-30
● Active
Type 1 · Individual
Defeng Chen, MD
Chen is 1 of 141 internal medicine providers in Corpus Christi and 1 of 12343 in Texas.
Primary specialty
Internal Medicine
Plus 2 subspecialties
Licensed in
TX, NY
2 states
Status
Active
No deactivations on record
Last NPPES update
2022-08-14
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 12343 active internal medicine providers in Texas.
NPI age
19 years
↑ 2 yr above median (17 yr)
State licenses
2 states
Top 88% — 12% of peers are multi-state
Subspecialties
1
In the 33% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-06Enumerated in NPPES
2006
2026
Where they practice
Practice location
600 Elizabeth St
Corpus Christi, TX 784042235
Mailing address
10 Reserve Blvd
Corpus Christi, TX 784143596
Additional practice locations
1 secondary location on file with NPPES.
Location 2
345 S Water St
Corpus Christi, TX 784012819
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 |
|---|---|---|
| 05 (TX) | 1657504-04 |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 230 other active providers share this practice address in NPPES.
Recently enumerated nearby: 2 new internal medicine providers have been added in Corpus Christi 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.