Mark Alexander Calderwood, MD

Primary specialty

Ophthalmology PhysicianTaxonomy code 207W00000X

License

MED-PHYS-LIC-7129 Issued in MT

Practice address

300 N 10TH St Ste a
Hamilton, MT 59840-5322

Phone

(406) 363-5434

Fax

(406) 363-5210

NPI assigned

Sep 7, 2006

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other identifiers 2

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in MT

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: markcalderwood@mdmh.cernerdirect.com
• Direct secure messaging: mcalderwood@bitterrooteye.intellechartdirect.net

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.

• Marcus Daly Memorial Hospital Corporation

  • Critical Access Hospital
  • Hamilton, MT
  • NPI 1659475846
  Medicare reassignment NPD
• Marcus Daly Memorial Hospital Corporation

  • Nephrology Physician
  • Hamilton, MT
  • NPI 1235997958
  NPD
• Marcus Daly Memorial Hospital Corporation

  • Ophthalmology Physician
  • Hamilton, MT
  • NPI 1285676445
  NPD

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

{
    "created_epoch": "1157587200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1731369600000",
    "number": "1447353024",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1200 WESTWOOD DR",
            "city": "HAMILTON",
            "state": "MT",
            "postal_code": "598402345"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 N 10TH ST STE A",
            "city": "HAMILTON",
            "state": "MT",
            "postal_code": "598405322",
            "telephone_number": "406-363-5434",
            "fax_number": "406-363-5210"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CALDERWOOD",
        "first_name": "MARK",
        "middle_name": "ALEXANDER",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-09-07",
        "last_updated": "2024-11-12",
        "certification_date": "2024-11-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "MT",
            "license": "MED-PHYS-LIC-7129",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100029272",
            "state": "MT"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1447353024",
            "state": "ID"
        }
    ],
    "endpoints": [
        {
            "endpointType": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "MARKCALDERWOODMDMHCERNERDIRECTCOM",
            "affiliation": "N",
            "address_1": "300 N 10th St",
            "address_2": "Suite A",
            "city": "Hamilton",
            "state": "MT",
            "country_code": "US",
            "postal_code": "598405322",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Hannah Burgess
• Barbara Jean Burke, PA-C
• Sarah Burkhart, PHARMD
• Rebecca Elizabeth Busch, LCSW
• Carol A Calderwood, MD
• Shannon Noel Calenberg, P.T., D.P.T.
• Mary E Camden, MD
• Janelle Campbell, RD
• Canyon Chiropractic PC
• Canyon View Dental PC

• Ophthalmology Physician in Hamilton, MT
• Providers in Hamilton, MT by specialty
• Ophthalmology Physician in Montana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 12, 2024; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.