Gregory Buser, M.D.
NPI 1548280407 · Cardiovascular Disease Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Cardiac Electrophysiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Buser, M.D. is a Cardiovascular Disease Physician provider in San Antonio, TX (NPI 1548280407).
Provider details
- NPI number
- 1548280407
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- K0657 (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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,755 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 510 | $14 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 393 | $122 |
| Evaluation of Single, Dual, Multiple Lead Or Leadless Pacemaker System, Remote Up to 90 Days93294 | 314 | $28 |
| Evaluation of Implantable Heart and Blood Vessel Monitoring System, Remote Up to 30 Days93297 | 179 | $24 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 175 | $65 |
| 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 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 289 | 69 |
| Rosuvastatin Calcium | 230 | 84 |
| Atorvastatin Calcium | 209 | 75 |
| Losartan Potassium | 199 | 71 |
| Carvedilol | 172 | 59 |
| Amlodipine Besylate | 155 | 50 |
| Furosemide | 134 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$88 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
Additional practice locations (1)
- 1933 Ne Loop 410San Antonio, TX 78217-5320Phone: (210) 804-6000Fax: (210) 804-6069
Registry dates
- Enumerated
- 2006-07-20
- Last updated
- 2026-01-13
- Certified
- 2026-01-13
Frequently asked questions
- What is Gregory Buser's NPI number?
- Gregory Buser's National Provider Identifier (NPI) is 1548280407, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Buser's specialty?
- Gregory Buser is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Buser located?
- Gregory Buser's practice location on file with NPPES is 8715 Village Dr Ste 200, San Antonio, TX 78217-5426.
- What is Gregory Buser's phone number?
- The practice phone number listed in the NPPES registry for Gregory Buser is (210) 804-6000.
- Does Gregory Buser accept Medicare?
- Gregory Buser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Buser's NPI active?
- Yes — Gregory Buser's NPI (1548280407) is active in the NPPES registry as of the last update on 2026-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.