Marcel Twahirwa, MD
NPI 1841381167 · Endocrinology, Diabetes & Metabolism Physician · Edinburg, TX
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcel Twahirwa, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Edinburg, TX (NPI 1841381167).
Provider details
- NPI number
- 1841381167
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- K3869 (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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
637 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 304 | $90 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 139 | $120 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 92 | $62 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 26 | $33 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 22 | $77 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 117 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 1,385 | 405 |
| Semaglutidebrand: Ozempic | 1,173 | 286 |
| Atorvastatin Calcium | 906 | 358 |
| Empagliflozinbrand: Jardiance | 603 | 199 |
| Metformin Hcl | 533 | 214 |
| Insulin Degludecbrand: Tresiba Flextouch U-100 | 421 | 159 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$102 across 4 records (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
Registry dates
- Enumerated
- 2006-09-28
- Last updated
- 2017-01-19
Frequently asked questions
- What is Marcel Twahirwa's NPI number?
- Marcel Twahirwa's National Provider Identifier (NPI) is 1841381167, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcel Twahirwa's specialty?
- Marcel Twahirwa is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Marcel Twahirwa located?
- Marcel Twahirwa's practice location on file with NPPES is 2609 Michaelangelo Dr, Edinburg, TX 78539-1417.
- What is Marcel Twahirwa's phone number?
- The practice phone number listed in the NPPES registry for Marcel Twahirwa is (956) 362-5650.
- Does Marcel Twahirwa accept Medicare?
- Marcel Twahirwa is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcel Twahirwa's NPI active?
- Yes — Marcel Twahirwa's NPI (1841381167) is active in the NPPES registry as of the last update on 2017-01-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.