NPI age
19 years
Enumerated 2006-06-15
● Active
Type 1 · Individual
S Marshal Isaacs, MD
Isaacs is 1 of 600 emergency medicine providers in Dallas and 1 of 6039 in Texas.
Primary specialty
Emergency Medicine
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2009-10-14
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 6039 active emergency medicine providers in Texas.
NPI age
19 years
↑ 4 yr above median (15 yr)
State licenses
1 state
17% of peers hold multiple states
Subspecialties
0
43% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-06Enumerated in NPPES
2006
2026
Where they practice
Practice location
5323 Harry Hines Blvd, Mc 8579
Dallas, TX 753908579
Mailing address
5323 Harry Hines Blvd, Mc 8579
Dallas, TX 753908579
Specialties
-
Emergency Medicine PrimaryAn emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department....
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (CA) | P00156837 | RAILROAD MEDICARE |
| 05 (CA) | OOG719350 |
Practice context
Part of a multi-provider practice. 4085 other active providers share this practice address in NPPES.
Recently enumerated nearby: 3 new emergency medicine providers have been added in Dallas 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.