NPI age
20 years
Enumerated 2006-03-23
● Active
Type 1 · Individual
DR. Margaret Happel, M.D.
Happel is 1 of 36 internal medicine providers in Temple and 1 of 2301 in Texas.
Primary specialty
Internal Medicine
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2021-12-10
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
2006-03Enumerated in NPPES
2006
2026
Where they practice
Practice location
2401 S 31st St
Temple, TX 76508
Mailing address
Po Box 844658
Dallas, TX 752844658
Additional practice locations
1 secondary location on file with NPPES.
Location 2
80 Vermont Ave
Oak Ridge, TN 378306474
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 (TN) | 4216835 | BLUECROSSBLUESHIELD |
Practice context
Part of a multi-provider practice. 1981 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 →
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