Margaret Happel, M.D.
NPI 1467412619 · Cardiovascular Disease Physician · Temple, TX
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Happel, M.D. is a Cardiovascular Disease Physician provider in Temple, TX (NPI 1467412619).
Provider details
- NPI number
- 1467412619
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- L6932 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
537 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 173 | $65 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 74 | $92 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 73 | $75 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 43 | $165 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Supervision By Physician93016 | 40 | $20 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 93 | 33 |
| Metoprolol Succinate | 75 | 23 |
| Lisinopril | 58 | 21 |
| Apixabanbrand: Eliquis | 54 | 12 |
| Spironolactone | 48 | 13 |
| Losartan Potassium | 43 | 17 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$22 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 80 Vermont AveOak Ridge, TN 37830-6474Phone: (865) 482-4078Fax: (865) 482-4960
Registry dates
- Enumerated
- 2006-03-23
- Last updated
- 2021-12-10
- Certified
- 2021-12-10
Frequently asked questions
- What is Margaret Happel's NPI number?
- Margaret Happel's National Provider Identifier (NPI) is 1467412619, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Happel's specialty?
- Margaret Happel is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Happel located?
- Margaret Happel's practice location on file with NPPES is 2401 S 31st St, Temple, TX 76508.
- What is Margaret Happel's phone number?
- The practice phone number listed in the NPPES registry for Margaret Happel is (254) 724-2111.
- Does Margaret Happel accept Medicare?
- Margaret Happel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Happel's NPI active?
- Yes — Margaret Happel's NPI (1467412619) is active in the NPPES registry as of the last update on 2021-12-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.