Sayf Yassin, M.D.
NPI 1043605371 · Internal Medicine Physician · Round Rock, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sayf Yassin, M.D. is a Internal Medicine Physician provider in Round Rock, TX (NPI 1043605371).
Provider details
- NPI number
- 1043605371
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 66293 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
922 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 493 | $113 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 223 | $108 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 100 | $164 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 83 | $75 |
| Critical Care, First 30-74 Minutes99291 | 12 | $203 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 11 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 56 | 55 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 28 | 27 |
| Furosemide | 24 | 23 |
| Potassium Chloride | 22 | 22 |
| Atorvastatin Calcium | 20 | 20 |
| Prednisone | 17 | 17 |
| Cephalexin | 16 | 16 |
Practice location
Mailing address
Additional practice locations (1)
- 1700 Medical Center PkwyMurfreesboro, TN 37129-2245Phone: (615) 396-4694Fax: (615) 396-6751
Registry dates
- Enumerated
- 2015-04-02
- Last updated
- 2025-02-19
- Certified
- 2025-02-19
Frequently asked questions
- What is Sayf Yassin's NPI number?
- Sayf Yassin's National Provider Identifier (NPI) is 1043605371, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sayf Yassin's specialty?
- Sayf Yassin is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sayf Yassin located?
- Sayf Yassin's practice location on file with NPPES is 201 Seton Pkwy, Round Rock, TX 78665-8000.
- What is Sayf Yassin's phone number?
- The practice phone number listed in the NPPES registry for Sayf Yassin is (512) 324-4170.
- Does Sayf Yassin accept Medicare?
- Sayf Yassin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sayf Yassin's NPI active?
- Yes — Sayf Yassin's NPI (1043605371) is active in the NPPES registry as of the last update on 2025-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.