NPI age
20 years
Enumerated 2006-04-14
● Active
Type 1 · Individual
Anton Peter Nielsen, M.D.
Nielsen is 1 of 422 internal medicine providers in Houston and 1 of 2301 in Texas.
Primary specialty
Internal Medicine
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2014-08-13
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 2301 active internal medicine providers in Texas.
NPI age
20 years
≈ at median (19 yr)
State licenses
1 state
11% of peers hold multiple states
Subspecialties
0
37% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-04Enumerated in NPPES
2006
2026
Where they practice
Practice location
18220 Tomball Pkwy, Suite 400
Houston, TX 770704347
Mailing address
18220 Tomball Pkwy, Suite 400
Houston, TX 770704347
Specialties
-
Internal Medicine PrimaryAn internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (TX) | P01309426 | RR MEDICARE |
| 01 (TX) | G1493 | PHYSICIAN LICENSE |
| 05 (TX) | 114877706 | |
| 01 (TX) | P01098536 | RR MEDICARE |
| 01 (TX) | 1457315632 | BLUE CROSS BLUE SHIELD |
| 01 (TX) | 8EE733 | BLUE CROSS BLUE SHIELD |
| 05 (TX) | 114877705 | |
| 05 (TX) | 114877704 |
Practice context
Part of a multi-provider practice. 45 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.