Jonathan Diamond, MD
NPI 1891221511 · Diagnostic Radiology Physician · Loma Linda, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Diamond, MD is a Diagnostic Radiology Physician provider in Loma Linda, CA (NPI 1891221511).
Provider details
- NPI number
- 1891221511
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A158521 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,518 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Ct Scan Head Or Brain Without Contrast70450 | 473 | $39 |
| X-Ray of Chest, 1 View71045 | 205 | $8 |
| Ct Scan of Upper Spine Without Contrast72125 | 120 | $46 |
| Ct Scan of Blood Vessels of Head With Contrast70496 | 102 | $81 |
| Ct Scan of Blood Vessels of Neck With Contrast70498 | 101 | $79 |
| Mri Scan of Brain Without Contrast70551 | 74 | $69 |
| Mri Scan of Brain Before and After Contrast |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,202 across 16 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-05-02
- Last updated
- 2024-07-31
- Certified
- 2024-07-31
Frequently asked questions
- What is Jonathan Diamond's NPI number?
- Jonathan Diamond's National Provider Identifier (NPI) is 1891221511, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Diamond's specialty?
- Jonathan Diamond is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Diamond located?
- Jonathan Diamond's practice location on file with NPPES is 11234 Anderson St # B221, Loma Linda, CA 92354-2804.
- What is Jonathan Diamond's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Diamond is (909) 558-4394.
- Does Jonathan Diamond accept Medicare?
- Jonathan Diamond is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Diamond's NPI active?
- Yes — Jonathan Diamond's NPI (1891221511) is active in the NPPES registry as of the last update on 2024-07-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.