Maria Hays, AA

Primary specialty

Anesthesiologist AssistantTaxonomy code 367H00000X

License

ANT.0000342 Issued in CO

Practice address

8000 E Maplewood Ave Ste 120
Greenwood Village, CO 80111-4766

Phone

(303) 438-3999

Fax

(720) 439-9500

NPI assigned

Apr 28, 2026

Last updated

Jun 10, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Specialty

Anesthesiology Assistant

Education

Other, 2026

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Associate of Arts

Practice roles

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.

• US Anesthesia Partners of Colorado Inc.

  • Anesthesiology Physician
  • Greenwood Village, CO
  • NPI 1922365782

  Anesthesiologist Assistant

  NPD (past)
• US Anesthesia Partners of Kansas PA

  • Anesthesiology Physician
  • Greenwood Village, CO
  • NPI 1811415599
  NPD (past)

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

{
    "created_epoch": "1777334400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781049600000",
    "number": "1225974579",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 840862",
            "city": "DALLAS",
            "state": "TX",
            "postal_code": "752840862",
            "telephone_number": "303-377-7638",
            "fax_number": "303-780-0787"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8000 E MAPLEWOOD AVE STE 120",
            "city": "GREENWOOD VILLAGE",
            "state": "CO",
            "postal_code": "801114766",
            "telephone_number": "303-438-3999",
            "fax_number": "720-439-9500"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAYS",
        "first_name": "MARIA",
        "credential": "AA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-04-28",
        "last_updated": "2026-06-10",
        "certification_date": "2026-06-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367H00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiologist Assistant",
            "state": "CO",
            "license": "ANT.0000342",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Colin Hayes, PT, DPT
• Kimberly Hayes
• Natasha Hayhurst
• Anna Kate Haynes, MS, CCC-SLP
• Baylee Haynie
• HCS Ny Ipa LLC
• Li He, MD
• Kenneth Headington, O.D.
• Healing Grove Integrative Behavioral Medicine
• Health House Chiropractic PLLC

• Anesthesiologist Assistant in Greenwood Village, CO
• Providers in Greenwood Village, CO by specialty
• Anesthesiologist Assistant in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 10, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• 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.