NPIMap

Individual provider Active NPI

Max E Ots, MD

  • Neurological Surgery Physician
  • Green Bay, WI
National Provider Identifier
1669498093
Registry record updated May 7, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Neurological Surgery PhysicianTaxonomy code 207T00000X
License
29379 Issued in WI
Practice address
2845 Greenbrier Rd
Green Bay, WI 54311-6519
Phone
(920) 288-8350
Fax
(920) 288-8355
NPI assigned
Jul 15, 2006
Last updated
May 7, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 7, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Neurological Surgery Physician 207T00000X 29379 WI Primary

Addresses

Primary practice location

2845 Greenbrier Rd
Green Bay, WI 54311-6519

Mailing address

1035 Kepler Dr
Green Bay, WI 54311-8320
Phone (920) 490-9046

Other identifiers 1

IdentifierTypeStateIssuer
31456800MedicaidWI

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address mots60563@direct.myadvocateaurora.org

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI, MI2 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 2

Enrollment IDStateProvider typePAC IDDetails
I20041113000178 WI Practitioner - Neurosurgery 6608788856 Reassigns benefits to 1 organization
I20101123000651 MI Practitioner - Neurosurgery 6608788856 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Neurosurgery
Education
Johns Hopkins University School of Medicine, 1982
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Baycare Clinic LLPGroup PAC ID 4385554328, 197 clinicians

Practice addresses (Care Compare)

2845 Greenbrier Rd
Green Bay, WI 54311-6519
Phone (920) 288-4930

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
86.21 of 100Reported as group
Quality
78.54
Promoting interoperability
100
Improvement activities
40
Cost
75.5

Procedures performed for Medicare patients

ProcedureNumber of procedures
Spinal fusion81
Laminectomy or laminotomy (partial removal of spine bones)42

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Baycare Clinic LLP CurrentSince Feb 1, 1999 Accepting new patients
Baycare Clinic LLP Neurological Surgery CurrentSince Feb 1, 1999 Accepting new patients

Locations

3500 Ludington St
Ste 100
Escanaba, MI 49829
Phone (906) 789-4466

1035 Kepler Dr
Green Bay, WI 54311

164 N Broadway
Green Bay, WI 54303
Phone (920) 965-4055

2581 Development Dr
Green Bay, WI 54311
Phone (920) 347-0400

2733 S Ridge Rd
Green Bay, WI 54304
Phone (920) 497-6200

2845 Greenbrier Rd
Green Bay, WI 54311
Phone (920) 288-3388

2845 Greenbrier Rd
Ste 330
Green Bay, WI 54311
Phone (920) 288-8377

725 S Webster Ave
Green Bay, WI 54301
Phone (920) 433-3655

700 N Westhaven Dr
Oshkosh, WI 54904
Phone (920) 456-2030

719 Doctors Ct
Oshkosh, WI 54901
Phone (920) 235-0066

Interoperability endpoints

  • Direct secure messaging: mots60563@direct.myadvocateaurora.org

Organizations & group practices 2

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.

Hospital & facility affiliations 8

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": "1152921600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778112000000",
    "number": "1669498093",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1035 KEPLER DR",
            "city": "GREEN BAY",
            "state": "WI",
            "postal_code": "543118320",
            "telephone_number": "920-490-9046",
            "fax_number": "920-405-8005"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2845 GREENBRIER RD",
            "city": "GREEN BAY",
            "state": "WI",
            "postal_code": "543116519",
            "telephone_number": "920-288-8350",
            "fax_number": "920-288-8355"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OTS",
        "first_name": "MAX",
        "middle_name": "E",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-15",
        "last_updated": "2026-05-07",
        "certification_date": "2026-05-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207T00000X",
            "taxonomy_group": "",
            "desc": "Neurological Surgery",
            "state": "WI",
            "license": "29379",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "31456800",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mots60563@direct.myadvocateaurora.org",
            "affiliation": "N",
            "address_1": "2845 Greenbrier Rd Ste 330",
            "city": "Green Bay",
            "state": "WI",
            "country_code": "US",
            "postal_code": "543116519",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Green Bay, WI

Sources for this page

Verify at the official NPI Registry.