# SAMUEL JACOB KLEMPNER

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- **Entity:** Individual
- **Status:** Active
- **Sole proprietor:** No

## Provider details

- **NPI number:** 1134329378
- **Gender:** Man
- **Credential:** M.D

## Taxonomy

| Code | Description | License number | State | Primary |
| --- | --- | --- | --- | --- |
| 207R00000X | Internal Medicine Physician | 232414 | MA | — |
| 207RH0000X | Hematology (Internal Medicine) Physician | 243585 | MA | — |
| 207RH0003X | Hematology & Oncology Physician | A125171 | CA | Yes |
| 207RX0202X | Medical Oncology Physician | 243585 | MA | — |

## Other

- **Enumeration date:** 07/24/2007
- **Last updated:** 08/14/2026