Jason Ling, MD
NPI 1154664597ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Fullerton, CA
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Providence Medical Foundation, practicing in Fullerton, California. Their prescriptions cost Medicare Part D more than their services did: $4,563,126 for 8,213 claims, against $135,011 paid for services in 2024. Abbott Laboratories was the largest of 30 companies reporting payments in 2025, $2,775 in all, mostly food and beverage. Lists Providence St. Joseph Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1154664597 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 4, 2013 |
| Last updated in NPPES | Nov 5, 2021 |
| Certified by provider | Nov 5, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | A156260 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,423 |
|---|---|
| Services billed | 7,902 across 40 procedure codes |
| Paid by Medicare | $135,011 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,213 · 20,964 30-day fills |
|---|---|
| Patients | 1,079 |
| Total drug cost | $4,563,126 |
| Generic share | 56% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Providence Medical FoundationVictorville, CA · 1,466 clinicians
Hospital affiliations
- Providence St. Joseph HospitalOrange, CA
- Providence St. Jude Medical CenterFullerton, CA
- Uci Health-OrangeOrange, CA
Industry payments (Open Payments)
- 2025$2,775 · 134 payments from 30 companies
- 2024$3,101 · 114 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $365.54 | 11 |
| Amgen Inc. | $256.56 | 24 |
| Recordati_rare_diseases_inc. | $186.52 | 6 |
| Insulet Corporation | $172.94 | 5 |
| Lilly USA, LLC | $158.34 | 9 |
What the 2025 payments were for
- Food and Beverage$2,775 · 134 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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