Darren Kocs, MD
NPI 1972541357 · Hematology & Oncology Physician · Round Rock, TX
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Darren Kocs, MD is a Hematology & Oncology Physician provider in Round Rock, TX (NPI 1972541357).
Provider details
- NPI number
- 1972541357
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- L6477 (TX)
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 tenure25% of score
20 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
21,364 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) |
|---|---|---|
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 2,276 | $8 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 2,085 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 2,052 | $10 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 1,275 | $14 |
| Magnesium Level83735 | 946 | $7 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, Additional Sequential Infusion, 1 Hour Or Less96367 | 944 | $26 |
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 |
|---|---|---|
| Anastrozole | 315 | 89 |
| Apixabanbrand: Eliquis | 269 | 54 |
| Rivaroxabanbrand: Xarelto | 111 | 24 |
| Warfarin Sodium | 98 | 17 |
| Potassium Chloride | 78 | 22 |
| Ondansetronbrand: Ondansetron Odt | 77 | 53 |
| Lenalidomidebrand: Revlimid | 65 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$77 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
- 2006-06-04
- Last updated
- 2008-02-21
Frequently asked questions
- What is Darren Kocs's NPI number?
- Darren Kocs's National Provider Identifier (NPI) is 1972541357, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darren Kocs's specialty?
- Darren Kocs is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Darren Kocs located?
- Darren Kocs's practice location on file with NPPES is 2410 Round Rock Ave, Round Rock, TX 78681-4003.
- What is Darren Kocs's phone number?
- The practice phone number listed in the NPPES registry for Darren Kocs is (512) 341-8724.
- Does Darren Kocs accept Medicare?
- Darren Kocs is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Darren Kocs's NPI active?
- Yes — Darren Kocs's NPI (1972541357) is active in the NPPES registry as of the last update on 2008-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.