NPIMap

Individual provider Active NPI

John W Merrell, P.A.

  • Surgical Physician Assistant
  • Round Rock, TX
National Provider Identifier
1912961897
Registry record updated Jan 2, 2020
On this page

Key facts

NPPES NPI Registry
Primary specialty
Surgical Physician AssistantTaxonomy code 363AS0400X
License
PA13272 Issued in TX
Practice address
302 University Blvd
Round Rock, TX 78665-1032
Phone
(512) 509-0200
Fax
(512) 218-6330
NPI assigned
Apr 17, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 2, 2020

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Surgical Physician Assistant 363AS0400X A10176 LA
Surgical Physician Assistant 363AS0400X PA2181 TN
Surgical Physician Assistant 363AS0400X PA13272 TX Primary

Addresses

Primary practice location

302 University Blvd
Round Rock, TX 78665-1032

Mailing address

PO Box 844658
Dallas, TX 75284-4658

Other identifiers 1

IdentifierTypeStateIssuer
1625795MedicaidLA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TN, WI, TX3 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 3

Enrollment IDStateProvider typePAC IDDetails
I20140403001228 TN Practitioner - Physician Assistant 9830147644 Reassigns benefits to 1 organization
I20190107001107 WI Practitioner - Physician Assistant 9830147644 Reassigns benefits to 1 organization
I20191210001337 TX Practitioner - Physician Assistant 9830147644 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 1990
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Aspirus Medical Group, Inc.Group PAC ID 1052223625, 272 clinicians

Practice addresses (Care Compare)

4005 Community Ctr Dr
Weston, WI 54476-4139
Phone (715) 241-5400

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
2181TNMDAudiologist
A10176LAMDSurgical Physician Assistant
PA2181TNMDSurgical Physician Assistant
PA13272TXMDSurgical Physician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Aspirus Medical Group, Inc. CurrentSince Aug 6, 2025 Accepting new patients
University Health System Inc CurrentSince Jan 13, 2014 Accepting new patients
Scott & White Clinic CurrentSince Nov 21, 2019 Accepting new patients
University Health System, Inc CurrentSince Jan 13, 2014 Accepting new patients
Aspirus Medical Group, Inc. CurrentSince Aug 6, 2025 Accepting new patients

Locations

29980 Network Pl
Chicago, IL 60673

1940 Alcoa Hwy
Ste E260
Knoxville, TN 37920
Phone (865) 305-6955

2401 S 31st St
Temple, TX 76508
Phone (254) 724-2459

4005 Community Center Dr
Weston, WI 54476
Phone (715) 241-5400

Interoperability endpoints

  • Direct secure messaging: jmerrell380052@direct.aspirus.org

Organizations & group practices 7

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.

Hospital & facility affiliations 10

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1145232000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1577923200000",
    "number": "1912961897",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 844658",
            "city": "DALLAS",
            "state": "TX",
            "postal_code": "752844658"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "302 UNIVERSITY BLVD",
            "city": "ROUND ROCK",
            "state": "TX",
            "postal_code": "786651032",
            "telephone_number": "512-509-0200",
            "fax_number": "512-218-6330"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MERRELL",
        "first_name": "JOHN",
        "middle_name": "W",
        "credential": "P.A.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-17",
        "last_updated": "2020-01-02",
        "certification_date": "2020-01-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": "LA",
            "license": "A10176",
            "primary": false
        },
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": "TN",
            "license": "PA2181",
            "primary": false
        },
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": "TX",
            "license": "PA13272",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1625795",
            "state": "LA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Round Rock, TX

Sources for this page

Verify at the official NPI Registry.