Individual provider Active NPI

Michael G Gunlock

  • Vascular & Interventional Radiology Physician
  • Austin, TX
National Provider Identifier
1588668370
Registry record updated Jan 12, 2015
On this page

Key facts

NPPES NPI Registry
Primary specialty
Vascular & Interventional Radiology PhysicianTaxonomy code 2085R0204X
License
K3745 Issued in TX
Practice address
12554 Riata Vista Cir
Austin, TX 78727-6431
Phone
(512) 795-5100
Fax
(512) 795-5122
NPI assigned
Jun 9, 2005
Last updated
Jan 12, 2015By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 12, 2015

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Vascular & Interventional Radiology Physician 2085R0204X K3745 TX Primary

Addresses

Primary practice location

12554 Riata Vista Cir
Austin, TX 78727-6431

Mailing address

12554 Riata Vista Cir
Austin, TX 78727-6431
Phone (512) 795-5100

Other identifiers 6

IdentifierTypeStateIssuer
044644504MedicaidTX
P00236577OtherRRMCARE2
044644507OtherTXCSHCN2
044644505MedicaidTX
044644506OtherTXCSHCN1
P00236577OtherRRMCARE

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX, WA, CO3 enrollments
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 3

Enrollment IDStateProvider typePAC IDDetails
I20050408000854 TX Practitioner - Diagnostic Radiology 5294772570 Reassigns benefits to 5 organizations
I20221205001917 WA Practitioner - Diagnostic Radiology 5294772570 Reassigns benefits to 3 organizations
I20230207000993 CO Practitioner - Diagnostic Radiology 5294772570 Reassigns benefits to 13 organizations

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
Baylor College of Medicine, 1994
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Radia Inc P SGroup PAC ID 9931012812, 275 clinicians
Radia Oregon Radiology Medical Group LLCGroup PAC ID 2961852637, 122 clinicians
Radia California Radiology Medical Group IncGroup PAC ID 8921465998, 134 clinicians
Yakima Valley Memorial PhysiciansGroup PAC ID 1557391596, 397 clinicians
Medford Radiological Group PCGroup PAC ID 2062303324, 91 clinicians
Radiology Associates PAGroup PAC ID 7517953912, 103 clinicians

Practice addresses (Care Compare)

Boulder, CO 80301
Phone (425) 563-1500

1514 Kinney Ave
Austin, TX 78704-2935
Phone (425) 563-1500

2500 30TH St
Suite 304 a
Boulder, CO 80301-1238
Phone (425) 563-1500

2811 Tieton Dr
Yakima, WA 98902-3761
Phone (509) 575-8000

721 Cougar Dr
Boulder, CO 80302-9522
Phone (541) 618-5800

905 S Wiley CT
Superior, CO 80027-8012
Phone (352) 328-7315

9801 Frontier Ave SE
Snoqualmie, WA 98065-5200
Phone (425) 831-2313

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Cher, LLC CurrentSince Nov 21, 2025 Accepting new patients
Austin Radiological Association CurrentSince Jul 1, 2005 Accepting new patients
Radia Oregon Radiology Medical Group LLC CurrentSince Jan 1, 2024 Accepting new patients
Cher, LLC CurrentSince Nov 18, 2025 Accepting new patients
Cher, LLC CurrentSince Nov 21, 2025 Accepting new patients
Imaging Partners of Tulsa LLC CurrentSince Jan 26, 2026 Accepting new patients
Redwood Radiology Group Inc CurrentSince May 9, 2023 Accepting new patients
Cher LLC CurrentSince Nov 21, 2025 Accepting new patients
Cher, LLC CurrentSince Nov 21, 2025 Accepting new patients
Radiology Associates PA CurrentSince Aug 5, 2023 Accepting new patients
Cher, LLC CurrentSince Nov 21, 2025 Accepting new patients
Medford Radiological Group, PC CurrentSince Feb 1, 2023 Accepting new patients
Utah Medical Imaging Partners, LLC CurrentSince Jan 21, 2026 Accepting new patients
Singleton Associates PA Vascular & Interventional Radiology CurrentSince Jul 1, 2019 Accepting new patients
Cher, LLC CurrentSince Nov 21, 2025 Accepting new patients
Utah Medical Imaging Partners, LLC CurrentSince Jan 21, 2026 Accepting new patients
Cher, LLC CurrentSince Nov 21, 2025 Accepting new patients
Cher, LLC CurrentSince Nov 21, 2025 Accepting new patients
Cher, LLC CurrentSince Nov 21, 2025 Accepting new patients
Cher, LLC CurrentSince Nov 21, 2025 Accepting new patients
Cher LLC CurrentSince Nov 21, 2025 Accepting new patients
Cher, LLC CurrentSince Nov 18, 2025 Accepting new patients
Cher LLC CurrentSince Nov 21, 2025 Accepting new patients
Colorado Springs Imaging LLC CurrentSince Nov 21, 2025 Accepting new patients
Radia California Radiology Medical Group Inc CurrentSince Aug 13, 2023 Accepting new patients
Cher LLC CurrentSince Nov 20, 2025 Accepting new patients
Cher LLC CurrentSince Nov 21, 2025 Accepting new patients
Cher, LLC CurrentSince Nov 18, 2025 Accepting new patients
Colorado Springs Imaging LLC CurrentSince Nov 21, 2025 Accepting new patients
Radia Inc P S CurrentSince Mar 23, 2023 Accepting new patients
Cher, LLC CurrentSince Nov 21, 2025 Accepting new patients
Houston Northwest Radiology Assn PastSince Mar 13, 2022 Accepting new patients
Public Hospital District No 4, King County Wa Past Accepting new patients
Texas Orthopedics Sports & Rehabilitation Associates PA Past Accepting new patients
Cardiovascular Care Providers, Inc. Past Accepting new patients
Texas Orthopedics, Sports & Rehabilitation Associates, PA Past Accepting new patients
New Haven Radiology Associates, P.C. Past Accepting new patients
Radiology Associates of San Antonio,P.a. Past Accepting new patients
New Haven Radiology Associates PC Past Accepting new patients

Locations (25 of 51)

500 S University Ave
Ste 101
Little Rock, AR 72205
Phone (501) 686-2688

400 N McDowell Blvd
Petaluma, CA 94954
Phone (707) 778-1111

19950 Rinaldi St
Ste 101B
Porter Ranch, CA 91326
Phone (818) 496-7517

1450 Medical Center Dr
Rohnert Park, CA 94928
Phone (707) 546-3210

15031 Rinaldi St
San Fernando, CA 91345
Phone (818) 365-8051

26357 McBean Pkwy
Ste 155
Santa Clarita, CA 91355
Phone (661) 288-5940

1165 Montgomery Dr
Santa Rosa, CA 95405
Phone (707) 525-5300

121 Sotoyome St
Santa Rosa, CA 95405
Phone (707) 546-3141

925 Corporate Cntr Pkwy
Ste A
Santa Rosa, CA 95407
Phone (707) 543-2000

6580 Hembree Ln
Ste 270
Windsor, CA 95492
Phone (707) 838-2044

2500 30th St
Ste 304A
Boulder, CO 80301

1746 Cole Blvd
Ste 150
Lakewood, CO 80401
Phone (303) 716-3787

10401 Anderson Mill Rd
Ste 110B
Austin, TX 78750
Phone (512) 250-5571

11044 Research Blvd
Ste B100
Austin, TX 78759
Phone (512) 834-9729

11714 Wilson Parke Ave
Ste 175
Austin, TX 78726
Phone (512) 519-3457

1201 W 38th St
Austin, TX 78705
Phone (512) 324-1058

12554 Riata Vista Cir
Austin, TX 78727
Phone (512) 519-3462

1301 Barbara Jordan Blvd
Ste 104
Austin, TX 78723
Phone (512) 480-0761

1301 W 38th St
Ste 113
Austin, TX 78705
Phone (512) 324-3395

1301 W 38th St
Ste 118
Austin, TX 78705
Phone (512) 454-7380

1701 W Ben White Blvd
Ste 170
Austin, TX 78704
Phone (512) 428-9090

2501 W William Cannon Dr
Bldg 5
Austin, TX 78745
Phone (512) 346-7311

2911 Medical Arts St
Ste 17
Austin, TX 78705
Phone (512) 474-6666

3301 West Ave
Austin, TX 78705
Phone (512) 420-9330

4201 Marathon Blvd
Ste 300
Austin, TX 78756
Phone (512) 458-6060

Interoperability endpoints

  • Direct secure messaging: mgunlock574349@direct.peacehealth.org

Organizations & group practices 46

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

View all 46

Hospital & facility affiliations 6

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": "1118275200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1421020800000",
    "number": "1588668370",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "12554 RIATA VISTA CIR",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787276431",
            "telephone_number": "512-795-5100",
            "fax_number": "512-795-5122"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "12554 RIATA VISTA CIR",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787276431",
            "telephone_number": "512-795-5100",
            "fax_number": "512-795-5122"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GUNLOCK",
        "first_name": "MICHAEL",
        "middle_name": "G",
        "name_prefix": "Dr.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-06-09",
        "last_updated": "2015-01-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0204X",
            "taxonomy_group": "",
            "desc": "Radiology, Vascular & Interventional Radiology",
            "state": "TX",
            "license": "K3745",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "044644504",
            "state": "TX"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RRMCARE2",
            "identifier": "P00236577",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CSHCN2",
            "identifier": "044644507",
            "state": "TX"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "044644505",
            "state": "TX"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CSHCN1",
            "identifier": "044644506",
            "state": "TX"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RRMCARE",
            "identifier": "P00236577",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Austin, TX

Sources for this page

Verify at the official NPI Registry.