NPIMap

Individual provider Active NPI

Margaret Hay, MD

  • Pulmonary Disease Physician
  • Denver, CO
National Provider Identifier
1003347683
Registry record updated Aug 30, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pulmonary Disease PhysicianTaxonomy code 207RP1001X
License
71056 Issued in CO
Practice address
1601 E 19TH Ave Ste 3100
Denver, CO 80218-1239
Phone
(303) 863-0300
Fax
(303) 863-7014
NPI assigned
Mar 24, 2017
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 30, 2023

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 71056 CO
Pulmonary Disease Physician 207RP1001X 71056 CO Primary

Addresses

Primary practice location

1601 E 19TH Ave Ste 3100
Denver, CO 80218-1239

Mailing address

1601 E 19TH Ave Ste 3100
Denver, CO 80218-1239
Phone (303) 863-0300

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CO
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20230831001980 CO Practitioner - Pulmonary DiseasePractitioner - Critical Care (Intensivists) 9830460526 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Pulmonary DiseaseAlso: Critical Care (Intensivists)
Education
Ohio State University College of Medicine, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices

Practice addresses (Care Compare)

274 Union Blvd
Suite 200
Lakewood, CO 80228-1835
Phone (303) 951-0600

Hospital & facility affiliations

  • AdventHealth Littleton Hospital, Littleton, CO, CCN 060113
  • Centura Health-St Anthony Hospital Hospital, Lakewood, CO, CCN 060015
  • AdventHealth Porter Hospital, Denver, CO, CCN 060064
  • AdventHealth Parker Hospital, Parker, CO, CCN 060114
  • Adventhealth Castle Rock Hospital, Castle Rock, CO, CCN 060125

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
71056COMDPulmonary Disease Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Colorado Pulmonary Associates, PC Pulmonary Disease CurrentSince Sep 3, 2023 Accepting new patients
Critical Care Pulmonary and Sleep Associates Professional LLP CurrentSince Jun 8, 2025 Accepting new patients
Critical Care Pulmonary and Sleep Associates Professional LLP Internal Medicine CurrentSince May 1, 2025 Accepting new patients
HCA Healthone LLC Past Accepting new patients

Locations

1601 E 19th Ave
Ste 3100
Denver, CO 80218
Phone (303) 839-7980

274 Union Blvd
Ste 200
Lakewood, CO 80228
Phone (303) 778-5666

Organizations & group practices 4

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.

Hospital & facility affiliations 15

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

View all 15

NPI Registry JSON

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

{
    "created_epoch": "1490313600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1693353600000",
    "number": "1003347683",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1601 E 19TH AVE STE 3100",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802181239",
            "telephone_number": "303-863-0300",
            "fax_number": "303-863-7014"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1601 E 19TH AVE STE 3100",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802181239",
            "telephone_number": "303-863-0300",
            "fax_number": "303-863-7014"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAY",
        "first_name": "MARGARET",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-03-24",
        "last_updated": "2023-08-30",
        "certification_date": "2023-08-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CO",
            "license": "71056",
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "CO",
            "license": "71056",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Denver, CO

Sources for this page

Verify at the official NPI Registry.