NPI age
20 years
Enumerated 2005-12-15
● Active
Type 1 · Individual
William A Biggers JR., M.D.
Biggers is 1 of 61 emergency medicine providers in Round Rock and 1 of 6039 in Texas.
Primary specialty
Emergency Medicine
Plus 2 subspecialties
Licensed in
TX, NC
2 states
Status
Active
No deactivations on record
Last NPPES update
2016-12-19
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
20 years
↑ 5 yr above median (15 yr)
State licenses
2 states
Top 82% — 17% of peers are multi-state
Subspecialties
1
In the 43% of peers with subspecialties
NPI lifetime · 2005 → 2026
2005-12Enumerated in NPPES
2005
2026
Where they practice
Practice location
300 University Blvd
Round Rock, TX 786651032
Mailing address
Po Box 844658
Dallas, TX 752844658
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....
-
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 |
|---|---|---|
| 01 (TX) | 930128838 | RAILROAD MEDICARE PROV NO |
| 01 (NC) | NC8999E | MEDICARE PTAN |
| 05 (TX) | 134115808 | |
| 05 (TX) | 134115809 | |
| 01 (TX) | 930117318 | RAILROAD MCARE PROV NO |
| 01 (TX) | 8G7963 | BCBSTX PROV NO |
| 01 (TX) | 8A2147 | BCBSTX PROV NO |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 194 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.