NPI age
18 years
Enumerated 2008-05-13
● Active
Type 1 · Individual
Mark J Dannenbaum, M.D.
Dannenbaum is 1 of 198 neurological surgery providers in Houston and 1 of 947 in Texas.
Primary specialty
Neurological Surgery
Plus 1 subspecialty
Licensed in
TX, MA
2 states
Status
Active
No deactivations on record
Last NPPES update
2020-01-30
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 947 active neurological surgery providers in Texas.
NPI age
18 years
≈ at median (17 yr)
State licenses
2 states
Top 80% — 19% of peers are multi-state
Subspecialties
0
31% of peers hold subspecialties
NPI lifetime · 2008 → 2026
2008-05Enumerated in NPPES
2008
2026
Where they practice
Practice location
6400 Fannin St, Ste. 2800
Houston, TX 770301521
Mailing address
6400 Fannin St Ste 2070
Houston, TX 770301541
Specialties
-
Neurological Surgery PrimaryA neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems,...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (TX) | 8DH416 | BCBSTX |
| 01 (TX) | P01084167 | MEDICARE RAILROAD |
| 01 (TX) | TXB165353 | MEDICARE MONTGOMERY COUNTY |
| 01 (TX) | 304333302 | MEDICAID MONTGOMERY COUNTY |
| 01 (TX) | TXB159068 | MEDICARE HARRIS COUNTY |
| 01 (TX) | 304333301 | MEDICAID HARRIS COUNTY |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 171 other active providers share this practice address in NPPES.
Recently enumerated nearby: 1 new neurological surgery provider has been added in Houston 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.