NPI age
7 years
Enumerated 2018-07-10
● Active
Type 1 · Individual
John Hayden Holtzclaw, AU.D.
Holtzclaw is 1 of 9 audiologist providers in San Marcos and 1 of 1654 in Texas.
Primary specialty
Audiologist
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2019-04-13
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 1654 active audiologist providers in Texas.
NPI age
7 years
↓ 6 yr below median (13 yr)
State licenses
1 state
5% of peers hold multiple states
Subspecialties
0
29% of peers hold subspecialties
NPI lifetime · 2018 → 2026
2018-07Enumerated in NPPES
2018
2026
Where they practice
Practice location
1340 Wonder World Dr Ste 4301
San Marcos, TX 786667695
Mailing address
3705 Medical Pkwy, Ste 320
Austin, TX 787051023
Specialties
-
Audiologist Primary(1) A specialist in evaluation, habilitation and rehabilitation of those whose communication disorders center in whole or in part in hearing function. Audiologists are autonomous professionals who identify, assess, and manage disorders...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (TX) | 80958 | TEXAS AUDIOLOGIST LICENSE |
Practice context
Part of a multi-provider practice. 6 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.