NPI age
20 years
Enumerated 2006-05-18
● Active Type 2 · Organization
Ronald L Cox Md, Inc
Ronald L Cox Md, Inc is 1 of 506 allergy & immunology organizations in Texas.
Primary specialty
Allergy & Immunology
Practice locations
1
0 secondary on file
Status
Active
No deactivations on record
Authorized official
Cox
Owner
Last NPPES update
2022-07-21
Source: monthly bulk 2026-05
How this organization compares
Across 506 active allergy & immunology providers in Texas.
NPI age
20 years
≈ at median (19 yr)
Practice locations
1
0 secondary on file
Subspecialties
0
NPI lifetime · 2006 → 2026
2006-05Enumerated in NPPES
2006
2026
Where they practice
Primary practice location
6611 River Place Blvd Ste 301
Austin, TX 787301162
Mailing address
Po Box 202110
Austin, TX 787202110
Authorized official
Ronald L Cox, MD
Owner
📞 5127322774
Individual providers at this organization
3 individual providers on file at this primary practice address.
- Kathryn Matzdorf, AUD Audiologist NPI 1922848845
- Kathryn Newbill, AUD Audiologist NPI 1144078015
- Sarah Williams, AU.D. Audiologist NPI 1548678279
Specialties
-
Allergy & Immunology PrimaryAn allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (OH) | 2865501 | |
| 01 (OH) | 4163812 | MEDICARE INDIVIDUAL |
| 01 (OH) | 9374391 | MEDICARE GROUP |
Practice context
Multi-provider organization. 3 individual providers on file at this primary address.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Verify the organization is in good standing.Cross-check with the state's business registration and any applicable licensing boards.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.