Anca Ostas, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

79291 Issued in CT

Practice address

24 Hospital Ave
Danbury, CT 06810-6077

Phone

(203) 688-4242

NPI assigned

Mar 26, 2021

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

Enrolled in CT

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

Internal MedicineAlso: Hospitalist

Education

Other, 2016

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Nuvance Health Medical Practice CT IncGroup PAC ID 4789597691, 742 clinicians

Northeast Medical Group IncGroup PAC ID 1254233836, 1,357 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Danbury Hospital Hospital, Danbury, CT, CCN 070033
• Bridgeport Hospital Hospital, Bridgeport, CT, CCN 070010

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: aostas514727@direct.ynhh.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.

• Northeast Medical Group, Inc.

  • Internal Medicine Physician
  • Bridgeport, CT
  • NPI 1043278351
  Medicare reassignment Care Compare group NPD
• Nuvance Health Medical Practice CT, Inc.

  • Internal Medicine Physician
  • Danbury, CT
  • NPI 1407898117
  Medicare reassignment Care Compare group NPD
• Mill Hill Medical Consultants Inc

  • Hospitalist Physician
  • New Haven, CT
  • NPI 1952624769
  NPD

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

• Bridgeport Hospital

  • General Acute Care Hospital
  • Bridgeport, CT
  • NPI 1649260845
  Care Compare affiliation
• Bridgeport Hospital

  • General Acute Care Hospital
  • Bridgeport, CT
  • NPI 1992910152
  Care Compare affiliation
• Danbury Hospital

  • Dental Clinic/Center
  • Danbury, CT
  • NPI 1003835935

  Hospital

  Care Compare affiliation
• Danbury Hospital

  • General Acute Care Hospital
  • Danbury, CT
  • NPI 1548293343
  Care Compare affiliation

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

{
    "created_epoch": "1616716800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756425600000",
    "number": "1073190997",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "24 HOSPITAL AVE",
            "city": "DANBURY",
            "state": "CT",
            "postal_code": "068106077"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "24 HOSPITAL AVE",
            "city": "DANBURY",
            "state": "CT",
            "postal_code": "068106077",
            "telephone_number": "203-688-4242"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OSTAS",
        "first_name": "ANCA",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-03-26",
        "last_updated": "2025-08-29",
        "certification_date": "2025-08-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "79291",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Loretta Marie Osik, ND
• Linda A Osika, PA-C
• Kenneth L Osnoss, MD
• Mark Osowski, RPH
• Dinmukhammed Osser, M.D.
• Komron Ostovar, M.D.
• Linda Awuor Otieno, MD
• Bulent Ozcakar
• Allyce Pace, LMSW
• Cristie Joyce Jagolino Pacete

• Internal Medicine Physician in Danbury, CT
• Providers in Danbury, CT by specialty
• Internal Medicine Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 29, 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.