# GM MEDICAL SERVICES LLC

> Is this information incorrect? This page shows public data from NPPES. Update your record in NPPES and this page will update automatically within 7 days. [Update your NPPES record](https://nppes.cms.hhs.gov)

- **Entity:** Organization
- **Status:** Active
- **Organization subpart:** No

## Provider details

- **NPI number:** 1528930401
- **Authorized official:** DR. GEORGE MARZLOFF MD (MEMBER)
- **Authorized official phone:** (347) 946-2791

## Contact information

- **Practice address:** 6500 W 104TH AVE, WESTMINSTER, CO 80020-4189
- **Practice address phone:** (347) 946-2791
- **Mailing address:** 4800 HAPPY CANYON RD STE 220, CMB 175, DENVER, CO 80237-1074

## Taxonomy

| Code | Description | License number | State | Primary |
| --- | --- | --- | --- | --- |
| 208100000X | Physical Medicine & Rehabilitation Physician | — | NULL | Yes |
| 208100000X | Physical Medicine & Rehabilitation Physician | — | — | Yes |

## Other

- **Enumeration date:** 09/22/2025
- **Last updated:** 08/07/2026