NPI age
20 years
Enumerated 2006-04-07
● Active
Type 1 · Individual
Dan Lender, MD
Lender is 1 of 3 internal medicine providers in Rockwall and 1 of 935 in Texas.
Primary specialty
Internal Medicine
Plus 1 subspecialty
Licensed in
TX, MD
2 states
Status
Active
No deactivations on record
Last NPPES update
2020-04-29
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 935 active internal medicine providers in Texas.
NPI age
20 years
↑ 2 yr above median (18 yr)
State licenses
2 states
Top 84% — 15% of peers are multi-state
Subspecialties
0
38% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-04Enumerated in NPPES
2006
2026
Where they practice
Practice location
890 Rockwall Pkwy Ste 102
Rockwall, TX 750326871
Mailing address
890 Rockwall Pkwy Ste 102
Rockwall, TX 750326871
Additional practice locations
1 secondary location on file with NPPES.
Location 2
9330 Poppy Dr Ste 302
Dallas, TX 752184640
Specialties
-
Internal Medicine PrimaryAn internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 105920604 | |
| 05 (TX) | 105920605 | |
| 05 (TX) | 105920603 | |
| 05 (WV) | 3810000990 | |
| 01 (MD) | 611595-01 | BLUE CROSS/BLUE SHIELD |
| 05 (MD) | 683504000 |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 2 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.