NPI age
20 years
Enumerated 2005-05-31
● Active
Type 1 · Individual
DR. Harold D Cain, M.D.
Cain is 1 of 20 internal medicine providers in Austin and 1 of 479 in Texas.
Primary specialty
Internal Medicine
Plus 1 subspecialty
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2016-10-24
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 479 active internal medicine providers in Texas.
NPI age
20 years
↑ 4 yr above median (16 yr)
State licenses
1 state
32% of peers hold multiple states
Subspecialties
1
In the 79% of peers with subspecialties
NPI lifetime · 2005 → 2026
2005-05Enumerated in NPPES
2005
2026
Where they practice
Practice location
3600 W Parmer Ln, Ste 106
Austin, TX 787274107
Mailing address
3600 W Parmer Ln, Ste 106
Austin, TX 787274107
Specialties
-
Internal Medicine PrimaryAn internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the...
-
Internal MedicineAn internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 117623204 |
Practice context
Part of a multi-provider practice. 4 other active providers share this practice address in NPPES.
Recently enumerated nearby: 1 new internal medicine provider has been added in Austin in the last 180 days.
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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.