Erik Castleberg, M.D.
NPI 1700177508 · Emergency Medicine Physician · Loma Linda, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Erik Castleberg, M.D. is a Emergency Medicine Physician provider in Loma Linda, CA (NPI 1700177508).
Provider details
- NPI number
- 1700177508
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
599 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 High Level of Medical Decision Making99285 | 339 | $191 |
| Critical Care, First 30-74 Minutes99291 | 180 | $230 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 80 | $132 |
Typical Medicare-allowed amounts for these services range $132–$230 (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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetronbrand: Ondansetron Odt | 67 | 63 |
| Prednisone | 52 | 51 |
| Ibuprofen | 45 | 45 |
| Cephalexin | 43 | 42 |
| Azithromycin | 23 | 23 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 20 | 19 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-04-27
- Last updated
- 2022-08-19
- Certified
- 2022-08-18
Frequently asked questions
- What is Erik Castleberg's NPI number?
- Erik Castleberg's National Provider Identifier (NPI) is 1700177508, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erik Castleberg's specialty?
- Erik Castleberg is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Erik Castleberg located?
- Erik Castleberg's practice location on file with NPPES is 11234 Anderson Street, Gme Office Csp 21005, Loma Linda, CA 92354-2804.
- What is Erik Castleberg's phone number?
- The practice phone number listed in the NPPES registry for Erik Castleberg is (909) 558-4085.
- Does Erik Castleberg accept Medicare?
- Erik Castleberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Erik Castleberg's NPI active?
- Yes — Erik Castleberg's NPI (1700177508) is active in the NPPES registry as of the last update on 2022-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.