Summit ASC, LLP

Primary specialty

Ambulatory Surgical Clinic/CenterTaxonomy code 261QA1903X

License

007253 Issued in TX

Legal business name

SUMMIT ASC, LLP

Practice address

4126 Southwest Fwy Ste 108
Houston, TX 77027-7318

Phone

(713) 622-4995

Fax

(713) 622-6246

NPI assigned

Sep 20, 2006

Organization subpart

No

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

Authorized official

Name

Dr. John J Garrett, M.D.

Title

Manager

Phone

(713) 621-6245

Specialties & licenses 1

Addresses

Other identifiers 3

Medicare fee-for-service enrollment

Enrolled in TX

Enrollment records 1

Listed as

Summit ASC LLPCCN 45C0001088

Medicare certification status

ActiveFrom the Provider of Services file

Locations

Practitioners 2

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Stephen Glenn Slade, M.D.

  • Ophthalmology Physician
  • Houston, TX
  • NPI 1386693752
  NPD
• Benjamin Borja Tiongson, MD

  • Pain Medicine (Physical Medicine & Rehabilitation) Physician
  • Houston, TX
  • NPI 1427048586
  NPD (past)

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

{
    "created_epoch": "1158710400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1771977600000",
    "number": "1841397171",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4126 SOUTHWEST FREEWAY SUITE 108",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770277318",
            "telephone_number": "713-622-4995",
            "fax_number": "713-622-6246"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4126 SOUTHWEST FWY STE 108",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770277318",
            "telephone_number": "713-622-4995",
            "fax_number": "713-622-6246"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "SUMMIT ASC, LLP",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-09-20",
        "last_updated": "2026-02-25",
        "certification_date": "2026-02-25",
        "status": "A",
        "authorized_official_last_name": "GARRETT",
        "authorized_official_first_name": "JOHN",
        "authorized_official_middle_name": "J",
        "authorized_official_title_or_position": "MANAGER",
        "authorized_official_telephone_number": "713-621-6245",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "M.D."
    },
    "taxonomies": [
        {
            "code": "261QA1903X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Ambulatory Surgical",
            "state": "TX",
            "license": "007253",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "142453301",
            "state": "TX"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RAILROAD MEDICARE",
            "identifier": "490005016",
            "state": "TX"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE CROSS BLUE SHIELD",
            "identifier": "HH1563",
            "state": "TX"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Summerwood Oral & Maxillofacial Surgery
• Summerwood Smiles Dentistry PC (Summerwood Smiles Dentistry)
• Gloria Summey
• Summit Allergy Labs, LLC
• Summit Anesthesia, PA
• Summit Dental Center
• Summit Dental Center
• Summit Dental Center
• Summit Dental Center LP
• Summit Dental Center LP

• Ambulatory Surgical Clinic/Center in Houston, TX
• Providers in Houston, TX by specialty
• Ambulatory Surgical Clinic/Center in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 25, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.