James Mesrobian, MD

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

45520 Issued in WI

Practice address

36500 Aurora Dr
Summit, WI 53066-4899

Phone

(262) 434-1000

NPI assigned

Mar 21, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in WI

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

Specialty

Anesthesiology

Education

Other, 1989

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Racine Anesthesia Services LLCGroup PAC ID 8628103777, 81 clinicians

Aurora Medical Group, Inc.Group PAC ID 6709794258, 3,764 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ascension All Saints Hospital Hospital, Racine, WI, CCN 520096
• Aurora Medical Center Hospital, Grafton, WI, CCN 520207

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jmesrobian315612@direct.myadvocateaurora.org

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.

• Racine Anesthesia Services, LLC

  • Anesthesiology Physician
  • Mount Pleasant, WI
  • NPI 1467782748
  Medicare reassignment Care Compare group NPD
• Aurora Medical Group, Inc.

  • Certified Registered Nurse Anesthetist
  • Milwaukee, WI
  • NPI 1427271378
  Medicare reassignment Care Compare group
• Orthopaedic Hospital of Wisconsin, LLC

  • General Acute Care Hospital
  • Glendale, WI
  • NPI 1669584983
  Medicare reassignment NPD
• The Medical College of Wisconsin, Inc.

  • Internal Medicine Physician
  • Milwaukee, WI
  • NPI 1699720086

  Anesthesiology

  Medicare reassignment NPD
• Aurora Medical Group, Inc.

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Milwaukee, WI
  • NPI 1659599157
  NPD
• Wisconsin Physician Services SC

  • Emergency Medicine Physician
  • Watertown, WI
  • NPI 1558818492
  NPD
• Racine Anesthesia Services

  • Certified Registered Nurse Anesthetist
  • Washington, DC
  • NPI 1942617683
  NPD
• Anesthesiology Consultants of Columbia, PA

  • Anesthesiology Physician
  • Columbia, SC
  • NPI 1508846197
  NPD (past)
• Laboratory Corportation of America Holdings

  • Clinical Medical Laboratory
  • Clinton, IN
  • NPI 1194140293
  NPD (past)
• Lima Memorial Joint Operating Company

  • General Acute Care Hospital
  • Lima, OH
  • NPI 1336144732
  NPD (past)

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

• Ascension All Saints Hospital, Inc

  • General Acute Care Hospital
  • Racine, WI
  • NPI 1639123284
  Care Compare affiliation
• Aurora Medical Center Grafton, LLC

  • General Acute Care Hospital
  • Grafton, WI
  • NPI 1265740195
  Care Compare affiliation

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

{
    "created_epoch": "1142899200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762992000000",
    "number": "1619936325",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 735044",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606735044",
            "telephone_number": "800-326-2250"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "36500 AURORA DR",
            "city": "SUMMIT",
            "state": "WI",
            "postal_code": "530664899",
            "telephone_number": "262-434-1000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "9200 W Wisconsin Ave",
            "address_purpose": "LOCATION",
            "city": "Milwaukee",
            "state": "WI",
            "postal_code": "532263522",
            "country_code": "US",
            "telephone_number": "414-805-8700",
            "fax_number": "414-259-1522",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "5000 W Burleigh St",
            "address_2": "Department of Anesthesiology",
            "address_purpose": "LOCATION",
            "city": "Milwaukee",
            "state": "WI",
            "postal_code": "532101646",
            "country_code": "US",
            "telephone_number": "414-447-2000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MESROBIAN",
        "first_name": "JAMES",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-21",
        "last_updated": "2025-11-13",
        "certification_date": "2025-11-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "WI",
            "license": "45520",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1619936325",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "36500 Aurora Dr",
            "city": "Summit",
            "state": "WI",
            "country_code": "US",
            "postal_code": "530664899",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "jmesrobian315612@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "36500 Aurora Dr",
            "city": "Summit",
            "state": "WI",
            "country_code": "US",
            "postal_code": "530664899",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Ann E McCoy, PHARM.D., R.PH
• Brett McLachlan, M.D.
• Michael T McQueen, D.C.
• Varun Mehta, M.D.
• Lee Meredith
• Christina T Meyer, MD
• Brett T Mittelstedt
• Jafar S Mohammed, M.D.
• Allison C Mohorek, PA-C
• Eric T Moore, MD

• Anesthesiology Physician in Summit, WI
• Providers in Summit, WI by specialty
• Anesthesiology Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 13, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.