Ronald Spier, DO
NPI 1124261631 · Student in an Organized Health Care Education/Training Program · Loma Linda, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronald Spier, DO is a Student in an Organized Health Care Education/Training Program provider in Loma Linda, CA (NPI 1124261631).
Provider details
- NPI number
- 1124261631
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 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
34 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 34 | $79 |
Typical Medicare-allowed amounts for these services range $79–$79 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 32 | 21 |
| Bisoprolol Fumarate | 24 | 15 |
| Amlodipine Besylate | 19 | 11 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 17 | — |
| Apixabanbrand: Eliquis | 16 | — |
| Atorvastatin Calcium | 14 | — |
| Rosuvastatin Calcium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-04-14
- Last updated
- 2021-12-02
Frequently asked questions
- What is Ronald Spier's NPI number?
- Ronald Spier's National Provider Identifier (NPI) is 1124261631, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Spier's specialty?
- Ronald Spier is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Ronald Spier located?
- Ronald Spier's practice location on file with NPPES is 11234 Anderson St Ofc Cp 21005, Loma Linda, CA 92354-2804.
- What is Ronald Spier's phone number?
- The practice phone number listed in the NPPES registry for Ronald Spier is (951) 317-4684.
- Does Ronald Spier accept Medicare?
- Ronald Spier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronald Spier's NPI active?
- Yes — Ronald Spier's NPI (1124261631) is active in the NPPES registry as of the last update on 2021-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.