Mark Greenwald

Primary specialty

Ophthalmology PhysicianTaxonomy code 207W00000X

License

DR.0070955 Issued in CO

Practice address

777 Bannock St
Denver, CO 80204-4597

Phone

(303) 436-4949

Fax

(303) 602-4560

NPI assigned

Dec 29, 2006

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

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in IL, CO2 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 2

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/
• Direct secure messaging: mgreenwaldmd8882@uchospital.direct-ci.com
• Direct secure messaging: mgreenwald254696@direct.dhha.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.

• Denver Health and Hospital Authority

  • General Practice Physician
  • Denver, CO
  • NPI 1477569838
  Medicare reassignment NPD
• Cook County

  • General Acute Care Hospital
  • Chicago, IL
  • NPI 1588612832
  Medicare reassignment NPD
• Illinois College of Optometry

  • Optometrist
  • Chicago, IL
  • NPI 1285612390
  Medicare reassignment NPD
• University of Chicago

  • Multi-Specialty Clinic/Center
  • Chicago, IL
  • NPI 1821048786
  Medicare reassignment NPD
• Denver Health and Hospital Authority

  • Psychiatric Hospital Unit
  • Denver, CO
  • NPI 1689624942
  NPD
• Cook County

  • Emergency Medicine Physician
  • Chicago, IL
  • NPI 1821385170
  NPD
• Cook County

  • Multi-Specialty Clinic/Center
  • Chicago, IL
  • NPI 1831219450
  NPD

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

{
    "created_epoch": "1167350400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1739232000000",
    "number": "1720144975",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "777 BANNOCK ST",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802044597",
            "telephone_number": "303-436-4949",
            "fax_number": "303-602-4560"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "777 BANNOCK ST",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802044597",
            "telephone_number": "303-436-4949",
            "fax_number": "303-602-4560"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "5841 S Maryland Ave",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606371443",
            "country_code": "US",
            "telephone_number": "888-824-0200",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GREENWALD",
        "first_name": "MARK",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-12-29",
        "last_updated": "2025-02-11",
        "certification_date": "2025-02-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "IL",
            "license": "036055837",
            "primary": false
        },
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "CO",
            "license": "DR.0070955",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mgreenwaldmd8882@uchospital.direct-ci.com",
            "affiliation": "Y",
            "affiliationName": "University of Chicago Physicians Group",
            "address_1": "5841 S Maryland Ave",
            "city": "Chicago",
            "state": "IL",
            "country_code": "US",
            "postal_code": "606371443",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Bruce Ion Greenstein, D.M.D.
• Lisa Anne Greenstein
• Peri Michelle Greenstein, DMD
• Linda Greenwald Blaustein
• Joshua Greenwald, CNIM
• Lowell Greenwall, MD
• Emily Marie Greenwood, PHARMD
• Janice Netessa Greenwood, CPFS , CNA
• Joellen S Greenwood, PT
• Arnold Eldridge Greer, PHD

• Ophthalmology Physician in Denver, CO
• Providers in Denver, CO by specialty
• Ophthalmology Physician in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 11, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.