NPI age
19 years
Enumerated 2006-12-08
● Active
Type 1 · Individual
Mark D Holden, MD
Holden is 1 of 207 internal medicine providers in Galveston and 1 of 12343 in Texas.
Primary specialty
Internal Medicine
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2010-11-05
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
19 years
↑ 2 yr above median (17 yr)
State licenses
1 state
12% of peers hold multiple states
Subspecialties
0
33% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-12Enumerated in NPPES
2006
2026
Where they practice
Practice location
Department Of Internal Medicine, 301 University Blvd, Route 0569
Galveston, TX 775550569
Mailing address
Department Of Internal Medicine, 301 University Blvd, Route 0569
Galveston, TX 775550569
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,...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 | 04-40165 | EVERCARE |
| 05 (TX) | 129074404 | |
| 01 | 8V8102 | BCBS TX |
| 01 | P00690862 | RR MEDICARE |
Practice context
Solo or small practice. No 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.