Spyridon A Mastroyannis, MD

Primary specialty

Gynecologic Oncology PhysicianTaxonomy code 207VX0201X

License

DR.0068092 Issued in CO

Practice address

1665 Aurora CT
Aurora, CO 80045-2517

Phone

(303) 724-2066

NPI assigned

Apr 14, 2015

Sex

Male

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

Enrolled in CO

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

Gynecological OncologyAlso: Obstetrics/Gynecology

Education

George Washington University School of Medicine, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

University Physicians IncorporatedGroup PAC ID 3476465667, 3,189 clinicians

Denver Health and Hospital AuthorityGroup PAC ID 4688583578, 830 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Medical Center of the Rockies Hospital, Loveland, CO, CCN 060119
• University of Colorado Hospital Authority Hospital, Aurora, CO, CCN 060024
• Poudre Valley Hospital Hospital, Fort Collins, CO, CCN 060010
• Uchealth Greeley Hospital Hospital, Greeley, CO, CCN 060131
• Longs Peak Hospital Hospital, Longmont, CO, CCN 060128

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: smastroyannis267897@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 Care Compare group NPD
• University Physicians Incorporated

  • Internal Medicine Physician
  • Aurora, CO
  • NPI 1962461889
  Medicare reassignment Care Compare group NPD
• Denver Health and Hospital Authority

  • Psychiatric Hospital Unit
  • Denver, CO
  • NPI 1689624942
  NPD
• University Physicians, Incorporated

  • Sports Medicine (Orthopaedic Surgery) Physician
  • Denver, CO
  • NPI 1275045049
  NPD
• SCL Health Montana

  • General Acute Care Hospital
  • Billings, MT
  • NPI 1083655997
  NPD
• University of Colorado Hospital Authority

  • General Acute Care Hospital
  • Aurora, CO
  • NPI 1477531580
  NPD (past)

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

• Longs Peak Hospital

  • General Acute Care Hospital
  • Longmont, CO
  • NPI 1154876985
  Care Compare affiliation
• Medical Center of the Rockies

  • General Acute Care Hospital
  • Greeley, CO
  • NPI 1104262286
  Care Compare affiliation
• Medical Center of the Rockies

  • General Acute Care Hospital
  • Loveland, CO
  • NPI 1750392304
  Care Compare affiliation
• Medical Center of the Rockies

  • General Acute Care Hospital
  • Greeley, CO
  • NPI 1780243055
  Care Compare affiliation
• Poudre Valley Health Care Inc

  • Clinic/Center
  • Fort Collins, CO
  • NPI 1457494304

  Hospital

  Care Compare affiliation
• Poudre Valley Health Care Inc

  • General Acute Care Hospital
  • Greeley, CO
  • NPI 1679419808
  Care Compare affiliation
• Poudre Valley Health Care Inc

  • General Acute Care Hospital
  • Greeley, CO
  • NPI 1962158857
  Care Compare affiliation
• Poudre Valley Health Care Inc.

  • General Acute Care Hospital
  • Fort Collins, CO
  • NPI 1073172094
  Care Compare affiliation
• Poudre Valley Health Care Inc.

  • General Acute Care Hospital
  • Fort Collins, CO
  • NPI 1093374001
  Care Compare affiliation
• Poudre Valley Health Care Inc.

  • General Acute Care Hospital
  • Fort Collins, CO
  • NPI 1093374092
  Care Compare affiliation
• Poudre Valley Health Care Inc.

  • General Acute Care Hospital
  • Fort Collins, CO
  • NPI 1114586278
  Care Compare affiliation
• Poudre Valley Health Care Inc.

  • General Acute Care Hospital
  • Fort Collins, CO
  • NPI 1184283103
  Care Compare affiliation

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

{
    "created_epoch": "1428969600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1736812800000",
    "number": "1700272986",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "12631 E 17TH AVE STE B198-5",
            "city": "AURORA",
            "state": "CO",
            "postal_code": "800452529",
            "telephone_number": "202-390-8159"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1665 AURORA CT",
            "city": "AURORA",
            "state": "CO",
            "postal_code": "800452517",
            "telephone_number": "303-724-2066"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "777 Bannock St",
            "address_purpose": "LOCATION",
            "city": "Denver",
            "state": "CO",
            "postal_code": "802044597",
            "country_code": "US",
            "telephone_number": "303-436-4949",
            "fax_number": "303-602-9150",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MASTROYANNIS",
        "first_name": "SPYRIDON",
        "middle_name": "A",
        "name_prefix": "Mr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-04-14",
        "last_updated": "2025-01-14",
        "certification_date": "2025-01-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207VX0201X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Gynecologic Oncology",
            "state": "CO",
            "license": "DR.0068092",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jessica Mast, CD(DONA), CLC
• Master Lemo LLC.
• Eugene Michael Master, DO, MS
• Crystal Michelis Constantine Masterson, CNM
• James J Masterson, M.S.W.
• Florina Mata, M.D.
• George Mataele
• Rachid Mataich
• Nomayi Naomi Matale-Herron
• Tatiana M Matanzo I

• Gynecologic Oncology Physician in Aurora, CO
• Providers in Aurora, CO by specialty
• Gynecologic Oncology Physician in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 14, 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.
• 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.