John Sarantopoulos, M.D.
NPI 1861495343 · Medical Oncology Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Sarantopoulos, M.D. is a Medical Oncology Physician provider in San Antonio, TX (NPI 1861495343).
Provider details
- NPI number
- 1861495343
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- L8940 (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
21 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
1,429 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 313 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 291 | $129 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 175 | $120 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 146 | $15 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, Additional Sequential Infusion, 1 Hour Or Less96367 | 99 | $28 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 102 | 21 |
| Prednisone | 95 | 24 |
| Abiraterone Acetate | 88 | 16 |
| Cabozantinib S-Malatebrand: Cabometyx | 34 | — |
| Morphine Sulfatebrand: Morphine Sulfate Er | 30 | — |
| Enzalutamidebrand: Xtandi | 29 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$90,135 across 121 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
- 2005-05-27
- Last updated
- 2010-08-18
Frequently asked questions
- What is John Sarantopoulos's NPI number?
- John Sarantopoulos's National Provider Identifier (NPI) is 1861495343, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Sarantopoulos's specialty?
- John Sarantopoulos is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is John Sarantopoulos located?
- John Sarantopoulos's practice location on file with NPPES is 7979 Wurzbach Rd, San Antonio, TX 78229-4427.
- What is John Sarantopoulos's phone number?
- The practice phone number listed in the NPPES registry for John Sarantopoulos is (210) 450-1000.
- Does John Sarantopoulos accept Medicare?
- John Sarantopoulos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Sarantopoulos's NPI active?
- Yes — John Sarantopoulos's NPI (1861495343) is active in the NPPES registry as of the last update on 2010-08-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.