University of Maryland Medicine ASC, LLC

Primary specialty

Ambulatory Surgical Clinic/CenterTaxonomy code 261QA1903X

Legal business name

UNIVERSITY OF MARYLAND MEDICINE ASC, LLC

Practice address

5900 Waterloo Rd Ste 120
Columbia, MD 21045-2636

Phone

(667) 214-2300

Fax

(866) 348-2079

NPI assigned

Nov 30, 2015

Organization subpart

No

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

Authorized official

Name

Hae Lin Retz, RN

Title

Ceo/Administrator

Phone

(667) 214-2300

Specialties & licenses 1

Addresses

Other names 1

• University of Maryland Surgery Center Doing business as

Medicare fee-for-service enrollment

Enrolled in MD

Enrollment records 1

Listed as

University of Maryland Medicine ASC LLCCCN 21C0001577

Medicare certification status

ActiveFrom the Provider of Services file

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

Member of 3

Organizations this organization is a member of, according to the National Provider Directory.

• University of Maryland Medical Center, LLC

  • Methadone Clinic
  • Baltimore, MD
  • NPI 1407177447

  Member Of

  NPD member
• University of Maryland Neurosurgery Associates P a

  • Neurological Surgery Physician
  • Columbia, MD
  • NPI 1639119035

  Member Of

  NPD member
• University of Maryland Orthopaedic Associates, PA

  • Orthopaedic Surgery Physician
  • Hunt Valley, MD
  • NPI 1851722318

  Member Of

  NPD member

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

{
    "created_epoch": "1448841600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1778544000000",
    "number": "1043684129",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5900 WATERLOO RD STE 120",
            "city": "COLUMBIA",
            "state": "MD",
            "postal_code": "210452636",
            "telephone_number": "667-214-2300",
            "fax_number": "410-799-5206"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5900 WATERLOO RD STE 120",
            "city": "COLUMBIA",
            "state": "MD",
            "postal_code": "210452636",
            "telephone_number": "667-214-2300",
            "fax_number": "866-348-2079"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "UNIVERSITY OF MARYLAND MEDICINE ASC, LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2015-11-30",
        "last_updated": "2026-05-12",
        "certification_date": "2026-05-12",
        "status": "A",
        "authorized_official_last_name": "RETZ",
        "authorized_official_first_name": "HAE LIN",
        "authorized_official_title_or_position": "CEO/ADMINISTRATOR",
        "authorized_official_telephone_number": "667-214-2300",
        "authorized_official_credential": "RN"
    },
    "taxonomies": [
        {
            "code": "261QA1903X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Ambulatory Surgical",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "University of Maryland Surgery Center",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

• University of Maryland Eye Associates, P.a.
• University of Maryland Eye Associates, P.a.
• University of Maryland Eye Associates, P.a.
• University of Maryland Faculty Physicians Immediate Care, LLC
• University of Maryland Family Medicine Associates, P.a.
• University of Maryland Neurosurgery Associates P a
• University of Maryland Neurosurgery Associates P a
• University of Maryland Neurosurgery Associates P a
• University of Maryland Orthopaedic Associates, PA
• University of Maryland Orthopaedic Trauma Associates, PA

• All providers in Columbia, MD
• Ambulatory Surgical Clinic/Center in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 12, 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.