# DR. JOHN MERRILL SEVERINGHAUS

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- **Entity:** Individual
- **Status:** Active
- **Sole proprietor:** Yes

## Provider details

- **NPI number:** 1891839403
- **Gender:** Man
- **Credential:** M.D.

## Taxonomy

| Code | Description | License number | State | Primary |
| --- | --- | --- | --- | --- |
| 207R00000X | Internal Medicine Physician | G36863 | CA | Yes |
| 2084A0401X | Addiction Medicine (Psychiatry & Neurology) Physician | 7237 | NH | — |
| 2084A0401X | Addiction Medicine (Psychiatry & Neurology) Physician | — | VT | — |
| 2084P0800X | Psychiatry Physician | 7237 | NH | — |
| 2084P0800X | Psychiatry Physician | — | VT | — |

## Other

- **Enumeration date:** 02/16/2007
- **Last updated:** 09/11/2025

## Other identifiers

| Code | Description | Identifier | Issuer | State |
| --- | --- | --- | --- | --- |
| 05 | — | 00009936 | — | VT |