Jonathan W. Harper, MD
Hospitalist Physician · Loma Linda, CA
Jonathan W. Harper, MD is a hospitalist physician with a practice address in Loma Linda, California, and NPI 1255861027, issued on Jun 14, 2017. Check the license (California A15173, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jonathan W. Harper
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- A15173 CA
A157173 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11234 Anderson St, Loma Linda, CA 92350
- Phone
- (909) 558-8131
- Enumerated
- Jun 14, 2017
- Record last updated
- May 12, 2026
- Medicare enrollment
- Enrolled (PECOS I20200602000290); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2017
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 11234 Anderson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nour Abdel-Azim, MDStudent in an Organized Health Care Education/Training Program1700671542
- Mostafa Abdulrahim, MDStudent in an Organized Health Care Education/Training Program1285579094
- Andranig AdjemianStudent in an Organized Health Care Education/Training Program1366236689
- Ira AdvaniStudent in an Organized Health Care Education/Training Program1770425449
- Hina Ahmed, FNPFamily Nurse Practitioner1689484958
- Saba Ahmed, MDStudent in an Organized Health Care Education/Training Program1114863172
Verify Jonathan W. Harper in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A15173Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average hospitalist physician in 2024
181 Medicare Part D claims for 66 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
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.
The MIPS final score for 2023 (Medicare payment program): 95.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Faculty Physicians And Surgeons OF LlusmLoma Linda, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jonathan W. Harper among 3,099 hospitalist physician records in California
Jonathan W. Harper, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 74% of them.
- NPI issued2017 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2017 · median 2010 among the 2,505 with a school on file
- Record last updated2026 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Loma Linda → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Matthew Orosa, DOLoma Linda, CA 923501992499669
- Brian Park, M.D.Loma Linda, CA 923501548609241
- Kaveh Brumand, M.D.Loma Linda, CA 923541740589290
- Yuan Cao, M.D.Loma Linda, CA 923541467815308
- Allen DangLoma Linda, CA 923541487099628
- Yi GuanLoma Linda, CA 923541366634156
- Heather Hofmann, M.D.Loma Linda, CA 923541568729861
- Hana Kazbour, M.D.Loma Linda, CA 923541326468166
Common questions
What is Jonathan W. Harper, MD's NPI number?
Jonathan W. Harper, MD's National Provider Identifier (NPI) is 1255861027, issued on Jun 14, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan W. Harper, MD located?
The NPPES record lists a practice address at 11234 Anderson St, Loma Linda, CA, 92350. Phone: (909) 558-8131. Providers update this record themselves, so call before visiting.
How can I verify Jonathan W. Harper, MD's license?
NPPES lists California license number A15173, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jonathan W. Harper, MD prescribe under Medicare Part D?
In 2024, Jonathan W. Harper, MD had 181 Medicare Part D claims for 66 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is Jonathan W. Harper, MD's MIPS final score?
The 2023 MIPS final score is 95.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.