GM Medical Services LLC

Primary specialty

Physical Medicine & Rehabilitation PhysicianTaxonomy code 208100000X

Legal business name

GM MEDICAL SERVICES LLC

Practice address

6500 W 104TH Ave
Westminster, CO 80020-4189

Phone

(347) 946-2791

NPI assigned

Sep 22, 2025

Organization subpart

No

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name

Dr. George Marzloff, MDNPI 1508270851

Title

Member

Phone

(347) 946-2791

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in CO

Enrollment records 1

Tax ID family

GM Medical Services LLC4 organizations share this tax ID, including this one

Other organizations with this tax ID 3

Organizations that report the same tax identification number in the National Provider Directory.

• GM Medical Services LLC

  • Physical Medicine & Rehabilitation Physician
  • Golden, CO
  • NPI 1073428660
  NPD tax ID
• GM Medical Services LLC

  • Physical Medicine & Rehabilitation Physician
  • Golden, CO
  • NPI 1184539785
  NPD tax ID
• GM Medical Services LLC

  • Physical Medicine & Rehabilitation Physician
  • Lafayette, CO
  • NPI 1710892310
  NPD tax ID

Locations

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• George Marzloff II, MD

  • Physical Medicine & Rehabilitation Physician
  • Broomfield, CO
  • NPI 1508270851
  Medicare reassignment NPD Authorized official

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1758499200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1786060800000",
    "number": "1528930401",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4800 HAPPY CANYON RD STE 220",
            "address_2": "CMB 175",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802371074"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6500 W 104TH AVE",
            "city": "WESTMINSTER",
            "state": "CO",
            "postal_code": "800204189",
            "telephone_number": "347-946-2791"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "12911 W 40th Ave",
            "address_purpose": "LOCATION",
            "city": "Lakewood",
            "state": "CO",
            "postal_code": "804012696",
            "country_code": "US",
            "telephone_number": "303-425-4500",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "200 Exempla Cir",
            "address_purpose": "LOCATION",
            "city": "Lafayette",
            "state": "CO",
            "postal_code": "800263370",
            "country_code": "US",
            "telephone_number": "303-689-4000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "600 Golden Ridge Rd",
            "address_purpose": "LOCATION",
            "city": "Golden",
            "state": "CO",
            "postal_code": "804018916",
            "country_code": "US",
            "telephone_number": "303-848-3900",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "GM MEDICAL SERVICES LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-09-22",
        "last_updated": "2026-08-07",
        "certification_date": "2026-08-07",
        "status": "A",
        "authorized_official_last_name": "MARZLOFF",
        "authorized_official_first_name": "GEORGE",
        "authorized_official_title_or_position": "MEMBER",
        "authorized_official_telephone_number": "347-946-2791",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "208100000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Physical Medicine & Rehabilitation",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Bridget Glaspey
• Glenn T. Kimata M.D., P.C.
• Dianne K Glenn, MD
• Juan Ignacio Glenn, M.A., LMTF
• Emily Gloss, MS
• Helen Laura Godfrey
• Taylor Randall Goggins, DDS
• Fredric L Gohl II, D.D.S.
• Glenna Goodman Gohl, M.S. CCC/SLP
• Krishna V Goje, MD

• Physical Medicine & Rehabilitation Physician in Westminster, CO
• Providers in Westminster, CO by specialty
• Physical Medicine & Rehabilitation Physician in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 7, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.