Individual provider Active NPI

Karen M. Thomson, MD

  • Anesthesiology Physician
  • Iowa City, IA
National Provider Identifier
1447340997
Registry record updated Mar 30, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
13571-320 Issued in WI
Practice address
200 Hawkins Dr
Iowa City, IA 52242-1009
Phone
(319) 356-2320
Fax
(319) 384-6265
NPI assigned
Oct 13, 2006
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Mar 30, 2026

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

Specialties & licenses 5

Specialty (taxonomy)CodeLicenseStatePrimary
Anesthesiology Physician 207L00000X U5040 TX
Pediatric Anesthesiology Physician 207LP3000X MD035800 DC
Anesthesiology Physician 207L00000X MD-55002 IA
Anesthesiology Physician 207L00000X 13571-320 WI Primary
Pediatric Anesthesiology Physician 207LP3000X MD-55002 IA

Addresses

Primary practice location

200 Hawkins Dr
Iowa City, IA 52242-1009

Mailing address

4913 Falstone Ave
Chevy Chase, MD 20815-5539

Other practice location 1

701 W Forevergreen Rd
North Liberty, IA 52317-9848
Phone (319) 384-6265

Other practice location 2

111 Michigan Ave NW
Washington, DC 20010-2978
Phone (202) 884-2025

Other practice location 3

12222 Merit Dr Ste 600
Dallas, TX 75251-3294
Phone (972) 715-5000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in DC, TX, LA3 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
I20051229000336 DC Practitioner - Anesthesiology 8123040540 Reassigns benefits to 1 organization
I20230828004120 TX Practitioner - Anesthesiology 8123040540 Reassigns benefits to 1 organization
I20260527000711 LA Practitioner - Anesthesiology 8123040540 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology
Education
Texas a & M University System, HSC, College of Medicine, 1999
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Children'S HospitalGroup PAC ID 0244143170, 212 clinicians
Ochsner Clinic LLCGroup PAC ID 8224933619, 2,845 clinicians

Practice addresses (Care Compare)

111 Michigan Ave NW
Washington, DC 20010-2916
Phone (301) 572-3514

1514 Jefferson Hwy
New Orleans, LA 70121-2429
Phone (504) 842-3000

Merit-based Incentive Payment System (MIPS)

Final score
88.94 of 100Reported as group
Quality
91.31
Improvement activities
40
Cost
79.05

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
MD-55002IAMDAnesthesiology Physician
MD035800DCMDPediatric Anesthesiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Children'S Hospital CurrentSince Jun 18, 2025 Accepting new patients
State University of Iowa CurrentSince Jun 30, 2025 Accepting new patients
Children'S Hospital Current Accepting new patients
University of Wisconsin Medical Foundation, Inc CurrentSince Jul 16, 2025 Accepting new patients
University of Wisconsin Medical Foundation, Inc CurrentSince Jul 16, 2025 Accepting new patients
Children'S Hospital CurrentSince Jun 18, 2025 Accepting new patients
U. S. Anesthesia Partners of Texas, P.a., Anesthesiology CurrentSince Jul 6, 2023 Accepting new patients
U S Anesthesia Partners of Texas, PA Anesthesiology CurrentSince Jul 6, 2023 Accepting new patients

Locations

111 Michigan Ave NW
Washington, DC 20010
Phone (202) 476-3670

200 Hawkins Dr
#H
Iowa City, IA 52242
Phone (319) 356-1616

200 Hawkins Dr
Iowa City, IA 52242
Phone (319) 356-1616

701 W Forevergreen Rd
North Liberty, IA 52317
Phone (319) 356-2223

4900 Mueller Blvd
Austin, TX 78723
Phone (512) 324-0165

12222 Merit Dr
Ste 600
Dallas, TX 75251
Phone (972) 361-1844

100 Medical Dr
Lake Jackson, TX 77566
Phone (713) 496-7555

600 Highland Ave
Madison, WI 53792
Phone (608) 263-0325

7974 Uw Health Ct
Middleton, WI 53562
Phone (608) 829-5270

Organizations & group practices 9

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": "1160697600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774828800000",
    "number": "1447340997",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4913 FALSTONE AVE",
            "city": "CHEVY CHASE",
            "state": "MD",
            "postal_code": "208155539"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 HAWKINS DR",
            "city": "IOWA CITY",
            "state": "IA",
            "postal_code": "522421009",
            "telephone_number": "319-356-2320",
            "fax_number": "319-384-6265"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "701 W Forevergreen Rd",
            "address_purpose": "LOCATION",
            "city": "North Liberty",
            "state": "IA",
            "postal_code": "523179848",
            "country_code": "US",
            "telephone_number": "319-384-6265",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "111 Michigan Ave NW",
            "address_purpose": "LOCATION",
            "city": "Washington",
            "state": "DC",
            "postal_code": "200102978",
            "country_code": "US",
            "telephone_number": "202-884-2025",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "12222 Merit Dr Ste 600",
            "address_purpose": "LOCATION",
            "city": "Dallas",
            "state": "TX",
            "postal_code": "752513294",
            "country_code": "US",
            "telephone_number": "972-715-5000",
            "fax_number": "972-715-9976",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "THOMSON",
        "first_name": "KAREN",
        "middle_name": "M.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2006-10-13",
        "last_updated": "2026-03-30",
        "certification_date": "2026-03-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "TX",
            "license": "U5040",
            "primary": false
        },
        {
            "code": "207LP3000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology, Pediatric Anesthesiology",
            "state": "DC",
            "license": "MD035800",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "IA",
            "license": "MD-55002",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "WI",
            "license": "13571-320",
            "primary": true
        },
        {
            "code": "207LP3000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology, Pediatric Anesthesiology",
            "state": "IA",
            "license": "MD-55002",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Iowa City, IA

Sources for this page

Verify at the official NPI Registry.