Derek Herkes, DO
NPI 1962909887 · Emergency Medicine Physician · Round Rock, TX
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Derek Herkes, DO is a Emergency Medicine Physician provider in Round Rock, TX (NPI 1962909887).
Provider details
- NPI number
- 1962909887
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- DO2958 (NV)
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
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
279 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) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 146 | $115 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 84 | $68 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 32 | $168 |
| Critical Care, First 30-74 Minutes99291 | 17 | $204 |
Typical Medicare-allowed amounts for these services range $68–$204 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 48 | 47 |
| Ondansetronbrand: Ondansetron Odt | 43 | 42 |
| Prednisone | 40 | 39 |
| Cephalexin | 32 | 31 |
| Methocarbamol | 27 | 27 |
| Methylprednisolone | 27 | 27 |
| Gabapentin | 22 | 22 |
| Amoxicillin/Potassium Clav |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-04-08
- Last updated
- 2022-09-23
- Certified
- 2022-09-23
Frequently asked questions
- What is Derek Herkes's NPI number?
- Derek Herkes's National Provider Identifier (NPI) is 1962909887, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Derek Herkes's specialty?
- Derek Herkes is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Derek Herkes located?
- Derek Herkes's practice location on file with NPPES is 300 University Blvd, Round Rock, TX 78665-1032.
- What is Derek Herkes's phone number?
- The practice phone number listed in the NPPES registry for Derek Herkes is (512) 509-0100.
- Does Derek Herkes accept Medicare?
- Derek Herkes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Derek Herkes's NPI active?
- Yes — Derek Herkes's NPI (1962909887) is active in the NPPES registry as of the last update on 2022-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.