Individual provider Active NPI

Charles G. Knox, M.D.

  • Pediatric Emergency Medicine (Pediatrics) Physician
  • Dallas, TX
National Provider Identifier
1881960805
Registry record updated Sep 18, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatric Emergency Medicine (Pediatrics) PhysicianTaxonomy code 2080P0204X
License
Q7222 Issued in TX
Practice address
7777 Forest LN
Dallas, TX 75230
Phone
(972) 566-7000
NPI assigned
Mar 23, 2012
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 18, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatric Emergency Medicine (Pediatrics) Physician 2080P0204X Q7222 TX Primary
Emergency Medicine Physician 207P00000X Q7222 TX

Addresses

Primary practice location

7777 Forest LN
Dallas, TX 75230

Mailing address

3311 Elm St Apt 204
Dallas, TX 75226-2528
Phone (210) 862-3231

Other practice location 1

333 N Santa Rosa
San Antonio, TX 78207-3108
Phone (210) 704-3030

Other practice location 2

1935 Medical District Dr
Graduate Medical Education
Dallas, TX 75235-7701
Phone (214) 456-2735

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20180725003311 TX Practitioner - Emergency Medicine 0244587962 Reassigns benefits to 3 organizations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
Q7222TXMDPediatric Emergency Medicine (Pediatrics) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Questcare Medical Services, PLLC Emergency Medicine CurrentSince Sep 25, 2018 Accepting new patients
Questcare Medical Services, PLLC Emergency Medicine CurrentSince Sep 25, 2018 Accepting new patients
Pediatric Emergency Medicine Group LLP Emergency Medicine CurrentSince Nov 15, 2020 Accepting new patients

Locations

7777 Forest Ln
Dallas, TX 75230
Phone (972) 566-7283

1935 Medical District Dr
#Graduate
Dallas, TX 75235
Phone (214) 456-2735

7601 Preston Rd
Plano, TX 75024
Phone (469) 303-7300

3901 W 15th St
Plano, TX 75075
Phone (972) 519-1115

Interoperability endpoints

  • Direct secure messaging: cknox79176@direct.childrens.com

Organizations & group practices 4

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1332460800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789689600000",
    "number": "1881960805",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3311 ELM ST APT 204",
            "city": "DALLAS",
            "state": "TX",
            "postal_code": "752262528",
            "telephone_number": "210-862-3231",
            "fax_number": "866-204-8465"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7777 FOREST LN",
            "city": "DALLAS",
            "state": "TX",
            "postal_code": "75230",
            "telephone_number": "972-566-7000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "333 N Santa Rosa",
            "address_purpose": "LOCATION",
            "city": "San Antonio",
            "state": "TX",
            "postal_code": "782073108",
            "country_code": "US",
            "telephone_number": "210-704-3030",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1935 Medical District Dr",
            "address_2": "Graduate Medical Education",
            "address_purpose": "LOCATION",
            "city": "Dallas",
            "state": "TX",
            "postal_code": "752357701",
            "country_code": "US",
            "telephone_number": "214-456-2735",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KNOX",
        "first_name": "CHARLES",
        "middle_name": "G.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2012-03-23",
        "last_updated": "2026-09-18",
        "certification_date": "2026-09-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0204X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Emergency Medicine",
            "state": "TX",
            "license": "Q7222",
            "primary": true
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "TX",
            "license": "Q7222",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Dallas, TX

Sources for this page

Verify at the official NPI Registry.