Jonathan B. Blitzer, MD
NPI 1912967324ActiveIndividual· Internal Medicine, Hematology & Oncology· Long Beach, CA
Internal Medicine, Hematology & Oncology (MD) with Memorialcare Medical Foundation, practicing in Long Beach, California. Their prescriptions cost Medicare Part D more than their services did: $147,189 for 413 claims, against $74,205 paid for services in 2024. Merck Sharp & Dohme LLC was the largest of 10 companies reporting payments in 2025, $587.17 in all, mostly food and beverage. Lists Memorialcare Long Beach Medical Center as a hospital affiliation.
Overview
| NPI | 1912967324 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 28, 2006 |
| Last updated in NPPES | Jan 3, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | G062021 | CA |
| Specialist | 174400000X | G062021 | CA |
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 - Hematology/Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 355 |
|---|---|
| Services billed | 891 across 20 procedure codes |
| Paid by Medicare | $74,205 |
Part D prescriptions in 2024
| Prescriptions (claims) | 413 · 738 30-day fills |
|---|---|
| Patients | 133 |
| Total drug cost | $147,189 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 1980 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Memorialcare Medical FoundationLong Beach, CA · 566 clinicians
Hospital affiliation
- Memorialcare Long Beach Medical CenterLong Beach, CA
Industry payments (Open Payments)
- 2025$587.17 · 17 payments from 10 companies
- 2024$889.35 · 28 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $144.58 | 4 |
| Astrazeneca Pharmaceuticals LP | $125.00 | 1 |
| Glaxosmithkline, LLC. | $70.71 | 3 |
| Novartis Pharmaceuticals Corporation | $65.96 | 2 |
| Genentech USA, Inc. | $53.35 | 2 |
What the 2025 payments were for
- Food and Beverage$587.17 · 17 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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