Joel C. Diamant, M.D.
NPI 1164498663ActiveIndividual· Internal Medicine· La Jolla, CA
Internal Medicine (M.D.) with Scripps Health, practicing in La Jolla, California. Their prescriptions cost Medicare Part D more than their services did: $325,916 for 4,068 claims, against $110,824 paid for services in 2024. Astrazeneca Pharmaceuticals LP reported $15.05 in payments in 2025, mostly food and beverage. Lists Scripps Green Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1164498663 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 24, 2006 |
| Last updated in NPPES | Mar 10, 2020 |
| Certified by provider | Mar 10, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | G73299 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 323 |
|---|---|
| Services billed | 2,072 across 40 procedure codes |
| Paid by Medicare | $110,824 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,068 · 9,991 30-day fills |
|---|---|
| Patients | 410 |
| Total drug cost | $325,916 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Scripps HealthLa Jolla, CA · 1,433 clinicians
Hospital affiliations
- Scripps Green HospitalLa Jolla, CA
- Scripps Memorial Hospital - EncinitasEncinitas, CA
- Scripps Memorial Hospital la JollaLa Jolla, CA
- Scripps Mercy HospitalSan Diego, CA
Other facilities
- Meridian Home HealthHome health agency · San Diego, CA
- Seaport Scripps Home HealthHome health agency · San Diego, CA
Industry payments (Open Payments)
- 2025$15.05 · 1 payment from 1 company
- 2024$115.64 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $15.05 | 1 |
What the 2025 payments were for
- Food and Beverage$15.05 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 179 internal medicine physicians in La Jolla · All internal medicine physicians in California