David Bartos Merkow, MD

Primary specialty

Orthopaedic Hand Surgery PhysicianTaxonomy code 207XS0106X

License

83969 Issued in WI

Practice address

N15W28300 Golf Rd
Pewaukee, WI 53072-4800

Phone

(262) 303-5055

Fax

(262) 303-5057

NPI assigned

Apr 12, 2018

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

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

Hand SurgeryAlso: Orthopedic Surgery

Education

Other, 2018

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Orthopaedic Associates of Wisconsin SCGroup PAC ID 1052200953, 106 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Waukesha Memorial Hospital Hospital, Waukesha, WI, CCN 520008
• Oconomowoc Memorial Hospital Hospital, Oconomowoc, WI, CCN 520062

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: dmerkow168920@direct.phci.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.

• Orthopaedic Associates of Wisconsin, SC

  • Orthopaedic Surgery Physician
  • Pewaukee, WI
  • NPI 1689656951
  Medicare reassignment Care Compare group NPD
• Orthopaedic Associates of Wisconsin SC

  • Orthopaedic Surgery Physician
  • Mukwonago, WI
  • NPI 1720433790
  NPD

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

• Prohealth Oconomowoc Memorial Hospital, Inc.

  • General Acute Care Hospital
  • Oconomowoc, WI
  • NPI 1366420531
  Care Compare affiliation
• Prohealth Oconomowoc Memorial Hospital, Inc.

  • Community/Retail Pharmacy
  • Oconomowoc, WI
  • NPI 1497942205

  Hospital

  Care Compare affiliation
• Prohealth Waukesha Memorial Hospital, Inc.

  • General Acute Care Hospital
  • Waukesha, WI
  • NPI 1629056890
  Care Compare affiliation

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

{
    "created_epoch": "1523491200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769472000000",
    "number": "1265939532",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "N15W28300 GOLF RD",
            "city": "PEWAUKEE",
            "state": "WI",
            "postal_code": "530724800",
            "telephone_number": "262-303-5055",
            "fax_number": "262-303-5057"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "N15W28300 GOLF RD",
            "city": "PEWAUKEE",
            "state": "WI",
            "postal_code": "530724800",
            "telephone_number": "262-303-5055",
            "fax_number": "262-303-5057"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MERKOW",
        "first_name": "DAVID",
        "middle_name": "BARTOS",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-04-12",
        "last_updated": "2026-01-27",
        "certification_date": "2026-01-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "WI",
            "license": "83969",
            "primary": false
        },
        {
            "code": "207XS0106X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Hand Surgery",
            "state": "WI",
            "license": "83969",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Joan E. McNulty, RN
• Meda Care Vans of Waukesha
• Medical Mobile Specialists S.C.
• Suzanne L Mehring, RN
• Meijer Stores Limited Partnership
• Steven Jon Merkow, M.D.
• Mi Healthcare Inc
• Jane Michalski, NP-C
• Kris M Mickelson
• Jessica Lynn Mickevicius, PHARMD

• Orthopaedic Hand Surgery Physician in Pewaukee, WI
• Providers in Pewaukee, WI by specialty
• Orthopaedic Hand Surgery Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 27, 2026; 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.