J Eric Castro, MD
NPI 1316971807 · Emergency Medicine Physician · Libertyville, IL
Provider details
- NPI number
- 1316971807
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036103419 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
6 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
221 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 | 100 | $120 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 57 | $174 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 53 | $70 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 11 | $8 |
Typical Medicare-allowed amounts for these services range $8–$174 (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.
Practice location
Mailing address
Additional practice locations (5)
- 450 W Highway 22Department of Emergency MedicineBarrington, IL 60010-1919Phone: (847) 842-4444
- 1 Kish Hospital Dr.Department of Emergency MedicineDekalb, IL 60115Phone: (815) 756-1521
- 530 Park Ave EastDept of Emergency MedicinePrinceton, IL 61356Phone: (815) 876-4411Fax: (815) 876-4471
- 2400 N. Rockton AveDept of Emergency MedicineRockford, IL 61103Phone: (815) 971-5000
- 4805 S Moorland RdNew Berlin, WI 53151-7401Phone: (262) 798-7200Fax: (262) 798-7271
Registry dates
- Enumerated
- 2006-07-10
- Last updated
- 2023-10-20
- Certified
- 2023-10-20
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.