Organization Active NPI

Medstar Urgent Care LLC

Doing business as MMG Urgent Care

  • Urgent Care Clinic/Center
  • Baltimore, MD
National Provider Identifier
1942623319
Registry record updated Aug 25, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Urgent Care Clinic/CenterTaxonomy code 261QU0200X
Legal business name
MEDSTAR URGENT CARE LLC
Doing business as
MMG Urgent Care
Practice address
6317 York Rd
Baltimore, MD 21212-2310
Phone
(410) 933-4966
NPI assigned
Jan 21, 2014
Last updated
Aug 25, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Aug 25, 2026

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

Authorized official

Name
Stephanie Schneider
Title
VP
Phone
(703) 558-1403

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Urgent Care Clinic/Center 261QU0200X Primary
General Practice Physician 208D00000X

Addresses

Primary practice location

6317 York Rd
Baltimore, MD 21212-2310

Mailing address

2233 Wisconsin Ave NW Ste 420
Washington, DC 20007-4122
Phone (410) 933-4966

Other practice location 1

6401 America Blvd
Hyattsville, MD 20782-2357
Phone (301) 276-8800

Other practice location 2

1321 Riverside Pkwy
Belcamp, MD 21017-1388
Phone (410) 297-2380

Other practice location 3

11915 Georgia Ave
Wheaton, MD 20902-2065
Phone (301) 942-4505

Other practice location 4

3350 Crain Hwy
Waldorf, MD 20603-4850
Phone (855) 910-3278

Other practice location 5

350 Fortune Ter
Potomac, MD 20854-2981
Phone (855) 910-3278

Other practice location 6

7825 York Rd
Towson, MD 21204-7445
Phone (855) 910-3278

Other practice location 7

5454 Wisconsin Ave Ste 401
Chevy Chase, MD 20815-6923
Phone (301) 215-9440

Other practice location 8

3610D King St
Alexandria, VA 22302-1908
Phone (703) 845-2815

Other practice location 9

3064 Marketplace Dr
Waldorf, MD 20603-4871
Phone (301) 932-5960

Other practice location 10

2401 Brandermill Blvd
Gambrills, MD 21054-1690
Phone (855) 748-4868

Other practice location 11

1420 Key Hwy
Baltimore, MD 21230-5546
Phone (410) 230-7820

Other practice location 12

8605 Ridgelys Choice Dr
Baltimore, MD 21236-2953
Phone (410) 248-2310

Other practice location 13

37767 Market Dr
Charlotte Hall, MD 20622-3188
Phone (301) 290-1499

Other practice location 14

1211 Darnestown Rd
Gaithersburg, MD 20878-3211
Phone (301) 926-3020

Other practice location 15

6317 York Rd
Baltimore, MD 21212-2310
Phone (443) 777-6590

Other practice location 16

6500 Baltimore National Pike
Catonsville, MD 21228-4200
Phone (855) 910-3278

Other practice location 17

1805 Columbia Rd NW
Washington, DC 20009-2001
Phone (202) 797-4960

Other practice location 18

19777 North Frederick Rd
Germantown, MD 20876-1307
Phone (855) 910-3278

Other practice location 19

44980 Saint Andrews Church Rd
California, MD 20619-2363
Phone (855) 910-3278

Other practice location 20

1807 Reisterstown Rd
Pikesville, MD 21208-1304
Phone (855) 910-3278

Other practice location 21

18045 Georgia Ave
Olney, MD 20832-2237
Phone (855) 910-3278

Other practice location 22

500 Charles St
La Plata, MD 20646-5931
Phone (855) 910-3278

Other practice location 23

2114 Generals Hwy
Annapolis, MD 21401-7488
Phone (855) 910-3278

Other practice location 24

882 Muddy Branch Rd
Gaithersburg, MD 20878-2780
Phone (855) 910-3278

Other practice location 25

6334 Cedar Ln
Columbia, MD 21044-3898
Phone (855) 910-3278

Other practice location 26

4507 Stanford St
Bethesda, MD 20815-5205
Phone (855) 910-3278

Other practice location 27

20 University Blvd E
Silver Spring, MD 20901-2436
Phone (855) 910-3278

Other practice location 28

12220 Rockville Pike
Rockville, MD 20852-1608
Phone (855) 910-3278

Other practice location 29

7698 Dorchester Blvd
Hanover, MD 21076-1946
Phone (855) 910-3278

Other practice location 30

201 Shorebird St
Frederick, MD 21701-1962
Phone (855) 910-3278

Other practice location 31

228 7th St SE
Washington, DC 20003-4306
Phone (202) 658-0795

Other practice location 32

8125 Ritchie Hwy Ste H
Pasadena, MD 21122-6925
Phone (855) 910-3278

Other names 1

  • MMG Urgent Care Doing business as

Electronic endpoints 1

TypeEndpointUseAffiliation
CONNECT URL https://cobiusconnect.cobius.com:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service Other Cobius Healthcare Solutions

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MD, DC2 enrollments

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
O20120607000236 MD Part B Supplier - Clinic/Group Practice 9335303155 Receives reassigned benefits from 517 practitioners
2 other NPIs on this enrollment
This NPI is an additional NPI on the enrollment
Practice locations: Annapolis, MD; Waldorf, MD; Towson, MD; Pikesville, MD; Pasadena, MD; Nottingham, MD; Lexington Park, MD; La Plata, MD…
O20130513000540 DC Part B Supplier - Clinic/Group Practice 9335303155 Receives reassigned benefits from 544 practitioners
1 other NPI on this enrollment
This NPI is an additional NPI on the enrollment
Practice locations: Wheaton, MD; Washington, DC; Gaithersburg, MD; Silver Spring, MD; Rockville, MD; Potomac, MD; Hyattsville, MD; Germantown, MD…

Other NPIs on the same Medicare enrollment 2

NPIs listed together on one Medicare enrollment, typically parts of the same organization.

National Provider Directory

National Provider Directory

Locations

5454 Wisconsin Ave
Ste 401
Chevy Chase, MD 20815
Phone (301) 215-9440

1807 Reisterstown Rd
Pikesville, MD 21208
Phone (443) 334-6038

3350 Crain Hwy
Waldorf, MD 20603
Phone (443) 332-4260

3610D King St
Alexandria, VA 22302
Phone (703) 845-2815

Practitioners & affiliated clinicians

Practitioners 453

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.

View all 453

NPI Registry JSON

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

{
    "created_epoch": "1390262400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1787616000000",
    "number": "1942623319",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2233 WISCONSIN AVE NW STE 420",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200074122",
            "telephone_number": "410-933-4966"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6317 YORK RD",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212122310",
            "telephone_number": "410-933-4966"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "6401 America Blvd",
            "address_purpose": "LOCATION",
            "city": "Hyattsville",
            "state": "MD",
            "postal_code": "207822357",
            "country_code": "US",
            "telephone_number": "301-276-8800",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1321 Riverside Pkwy",
            "address_purpose": "LOCATION",
            "city": "Belcamp",
            "state": "MD",
            "postal_code": "210171388",
            "country_code": "US",
            "telephone_number": "410-297-2380",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "11915 Georgia Ave",
            "address_purpose": "LOCATION",
            "city": "Wheaton",
            "state": "MD",
            "postal_code": "209022065",
            "country_code": "US",
            "telephone_number": "301-942-4505",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3350 Crain Hwy",
            "address_purpose": "LOCATION",
            "city": "WALDORF",
            "state": "MD",
            "postal_code": "206034850",
            "country_code": "US",
            "telephone_number": "855-910-3278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "350 Fortune Ter",
            "address_purpose": "LOCATION",
            "city": "POTOMAC",
            "state": "MD",
            "postal_code": "208542981",
            "country_code": "US",
            "telephone_number": "855-910-3278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "7825 York Rd",
            "address_purpose": "LOCATION",
            "city": "TOWSON",
            "state": "MD",
            "postal_code": "212047445",
            "country_code": "US",
            "telephone_number": "855-910-3278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "5454 Wisconsin Ave Ste 401",
            "address_purpose": "LOCATION",
            "city": "Chevy Chase",
            "state": "MD",
            "postal_code": "208156923",
            "country_code": "US",
            "telephone_number": "301-215-9440",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3610D King St",
            "address_purpose": "LOCATION",
            "city": "Alexandria",
            "state": "VA",
            "postal_code": "223021908",
            "country_code": "US",
            "telephone_number": "703-845-2815",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3064 Marketplace Dr",
            "address_purpose": "LOCATION",
            "city": "Waldorf",
            "state": "MD",
            "postal_code": "206034871",
            "country_code": "US",
            "telephone_number": "301-932-5960",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2401 Brandermill Blvd",
            "address_purpose": "LOCATION",
            "city": "Gambrills",
            "state": "MD",
            "postal_code": "210541690",
            "country_code": "US",
            "telephone_number": "855-748-4868",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1420 Key Hwy",
            "address_purpose": "LOCATION",
            "city": "Baltimore",
            "state": "MD",
            "postal_code": "212305546",
            "country_code": "US",
            "telephone_number": "410-230-7820",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "8605 Ridgelys Choice Dr",
            "address_purpose": "LOCATION",
            "city": "Baltimore",
            "state": "MD",
            "postal_code": "212362953",
            "country_code": "US",
            "telephone_number": "410-248-2310",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "37767 Market Dr",
            "address_purpose": "LOCATION",
            "city": "Charlotte Hall",
            "state": "MD",
            "postal_code": "206223188",
            "country_code": "US",
            "telephone_number": "301-290-1499",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1211 Darnestown Rd",
            "address_purpose": "LOCATION",
            "city": "Gaithersburg",
            "state": "MD",
            "postal_code": "208783211",
            "country_code": "US",
            "telephone_number": "301-926-3020",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "6317 York Rd",
            "address_purpose": "LOCATION",
            "city": "Baltimore",
            "state": "MD",
            "postal_code": "212122310",
            "country_code": "US",
            "telephone_number": "443-777-6590",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "6500 Baltimore National Pike",
            "address_purpose": "LOCATION",
            "city": "CATONSVILLE",
            "state": "MD",
            "postal_code": "212284200",
            "country_code": "US",
            "telephone_number": "855-910-3278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1805 Columbia Rd NW",
            "address_purpose": "LOCATION",
            "city": "Washington",
            "state": "DC",
            "postal_code": "200092001",
            "country_code": "US",
            "telephone_number": "202-797-4960",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "19777 North Frederick Rd",
            "address_purpose": "LOCATION",
            "city": "GERMANTOWN",
            "state": "MD",
            "postal_code": "208761307",
            "country_code": "US",
            "telephone_number": "855-910-3278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "44980 Saint Andrews Church Rd",
            "address_purpose": "LOCATION",
            "city": "CALIFORNIA",
            "state": "MD",
            "postal_code": "206192363",
            "country_code": "US",
            "telephone_number": "855-910-3278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1807 Reisterstown Rd",
            "address_purpose": "LOCATION",
            "city": "PIKESVILLE",
            "state": "MD",
            "postal_code": "212081304",
            "country_code": "US",
            "telephone_number": "855-910-3278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "18045 Georgia Ave",
            "address_purpose": "LOCATION",
            "city": "Olney",
            "state": "MD",
            "postal_code": "208322237",
            "country_code": "US",
            "telephone_number": "855-910-3278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "500 Charles St",
            "address_purpose": "LOCATION",
            "city": "LA PLATA",
            "state": "MD",
            "postal_code": "206465931",
            "country_code": "US",
            "telephone_number": "855-910-3278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2114 Generals Hwy",
            "address_purpose": "LOCATION",
            "city": "ANNAPOLIS",
            "state": "MD",
            "postal_code": "214017488",
            "country_code": "US",
            "telephone_number": "855-910-3278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "882 Muddy Branch Rd",
            "address_purpose": "LOCATION",
            "city": "GAITHERSBURG",
            "state": "MD",
            "postal_code": "208782780",
            "country_code": "US",
            "telephone_number": "855-910-3278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "6334 Cedar Ln",
            "address_purpose": "LOCATION",
            "city": "Columbia",
            "state": "MD",
            "postal_code": "210443898",
            "country_code": "US",
            "telephone_number": "855-910-3278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4507 Stanford St",
            "address_purpose": "LOCATION",
            "city": "BETHESDA",
            "state": "MD",
            "postal_code": "208155205",
            "country_code": "US",
            "telephone_number": "855-910-3278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "20 University Blvd E",
            "address_purpose": "LOCATION",
            "city": "SILVER SPRING",
            "state": "MD",
            "postal_code": "209012436",
            "country_code": "US",
            "telephone_number": "855-910-3278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "12220 Rockville Pike",
            "address_purpose": "LOCATION",
            "city": "ROCKVILLE",
            "state": "MD",
            "postal_code": "208521608",
            "country_code": "US",
            "telephone_number": "855-910-3278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "7698 Dorchester Blvd",
            "address_purpose": "LOCATION",
            "city": "Hanover",
            "state": "MD",
            "postal_code": "210761946",
            "country_code": "US",
            "telephone_number": "855-910-3278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "201 Shorebird St",
            "address_purpose": "LOCATION",
            "city": "FREDERICK",
            "state": "MD",
            "postal_code": "217011962",
            "country_code": "US",
            "telephone_number": "855-910-3278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "228 7th St SE",
            "address_purpose": "LOCATION",
            "city": "Washington",
            "state": "DC",
            "postal_code": "200034306",
            "country_code": "US",
            "telephone_number": "202-658-0795",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "8125 Ritchie Hwy Ste H",
            "address_purpose": "LOCATION",
            "city": "Pasadena",
            "state": "MD",
            "postal_code": "211226925",
            "country_code": "US",
            "telephone_number": "855-910-3278",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "MEDSTAR URGENT CARE LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2014-01-21",
        "last_updated": "2026-08-25",
        "certification_date": "2026-08-25",
        "status": "A",
        "authorized_official_last_name": "SCHNEIDER",
        "authorized_official_first_name": "STEPHANIE",
        "authorized_official_title_or_position": "VP",
        "authorized_official_telephone_number": "703-558-1403"
    },
    "taxonomies": [
        {
            "code": "261QU0200X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Urgent Care",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "208D00000X",
            "taxonomy_group": "",
            "desc": "General Practice",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "https://cobiusconnect.cobius.com:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service",
            "affiliation": "Y",
            "endpointDescription": "2.16.840.1.113883.3.1068.1",
            "affiliationName": "Cobius Healthcare Solutions",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": "CMS esMD eMDR",
            "address_1": "2720 Dundee Rd # 302",
            "city": "Northbrook",
            "state": "IL",
            "country_code": "US",
            "postal_code": "600622609",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "organization_name": "MMG Urgent Care",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Baltimore, MD

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 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.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.