Ronald Spier, DO
Student in an Organized Health Care Education/Training Program · Loma Linda, CA
Ronald Spier, DO is a student in an organized health care education/training program with a practice address in Loma Linda, California, and NPI 1124261631, issued on Apr 14, 2009. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ronald Spier
- Credential
- DO
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program 390200000X
- Practice location
- 11234 Anderson St Ofc CP 21005, Loma Linda, CA 92354
- Phone
- (951) 317-4684
- Enumerated
- Apr 14, 2009
- Record last updated
- Dec 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20120905000041); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest student in an organized health care education/training program records → All 40,652 in California → Look up another NPI →
Verify Ronald Spier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% more Medicare Part D claims than the average student in an organized health care education/training program in 2024
352 Medicare Part D claims for 126 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Furosemide32 claims
- Bisoprolol Fumarate24 claims
- Amlodipine Besylate19 claims
- Clopidogrel17 claims
- Eliquis16 claims
- Atorvastatin Calcium14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupFontana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ronald Spier among 40,652 student in an organized health care education/training program records in California
Ronald Spier, DO is one of 40,652 student in an organized health care education/training program records with a practice address in California. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 2% of them.
- NPI issued2009 · 2% of these records are older, 97% newer
- In a Medicare fileYes · 16% of these records are
- In the CMS Doctors and Clinicians fileYes · 6% of these records are
- Graduated2009 · median 2017 among the 2,409 with a school on file
- Record last updated2021 · 26% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,059 student in an organized health care education/training program records list a practice address in Loma Linda
They are 1,059 of the 4,863 NPPES records with a practice address in Loma Linda, and 40,652 student in an organized health care education/training program records in California.
All 40,652 in California → Every provider in Loma Linda → Student in an Organized Health Care Education/Training Program nationwide →
The 8 student in an organized health care education/training program records with the nearest ZIP codes
- Krishna Ahuja, M.DLoma Linda, CA 923541487832416
- Eckardt CamposLoma Linda, CA 923541932315868
- Joe Casillas, MDLoma Linda, CA 923541366610396
- Gurinder Dhindsa, MDLoma Linda, CA 923541184832339
- Alexis Donneys, M.D.Loma Linda, CA 923541801093257
- Diah Douglas, M.D.Loma Linda, CA 923541689873770
- Guriqbal Gill, DMDLoma Linda, CA 923541538379375
- Ihab Megale, M.D.Loma Linda, CA 923541497969836
Common questions
What is Ronald Spier, DO's NPI number?
Ronald Spier, DO's National Provider Identifier (NPI) is 1124261631, issued on Apr 14, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Ronald Spier, DO located?
The NPPES record lists a practice address at 11234 Anderson St Ofc CP 21005, Loma Linda, CA, 92354. Phone: (951) 317-4684. Providers update this record themselves, so call before visiting.
How can I verify Ronald Spier, DO's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Ronald Spier, DO prescribe under Medicare Part D?
In 2024, Ronald Spier, DO had 352 Medicare Part D claims for 126 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.