Mert Ozan Bahtiyar, MD

Primary specialty

Maternal & Fetal Medicine PhysicianTaxonomy code 207VM0101X

License

040378 Issued in CT

Practice address

20 York St
Yale- New Haven Hospital East Pavilion 4TH Floor
New Haven, CT 06510-3220

Phone

(203) 785-5682

Fax

(203) 785-3419

NPI assigned

Nov 22, 2005

Last updated

May 8, 2025By the provider in NPPES

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

Other identifiers 1

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

Obstetrics/Gynecology

Education

Other, 1994

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Yale UniversityGroup PAC ID 9436061736, 2,632 clinicians

Cornell Scott Hill Health CorporationGroup PAC ID 3072418359, 261 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

87.36 of 100Reported as group

Quality

77.36

Promoting interoperability

100

Improvement activities

40

Cost

74.27

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mbahtiyar@direct.wtbyhosp.org
• Direct secure messaging: mbahtiyar2477@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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Yale University

  dba Yale Medicine

  • Anesthesiology Physician
  • New Haven, CT
  • NPI 1205822236

  Obstetrics & Gynecology

  Medicare reassignment Care Compare group NPD
• Cornell Scott Hill Health Corporation

  • Federally Qualified Health Center (FQHC)
  • New Haven, CT
  • NPI 1902921380
  Care Compare group
• Yale University

  • Durable Medical Equipment & Medical Supplies
  • Fairfield, CT
  • NPI 1548066962
  NPD

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

{
    "created_epoch": "1132617600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1746662400000",
    "number": "1356324438",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "300 GEORGE ST",
            "address_2": "6TH FLOOR",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065116624",
            "telephone_number": "203-785-7998",
            "fax_number": "203-785-6414"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20 YORK ST",
            "address_2": "YALE- NEW HAVEN HOSPITAL EAST PAVILION 4TH FLOOR",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065103220",
            "telephone_number": "203-785-5682",
            "fax_number": "203-785-3419"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1 Long Wharf Dr",
            "address_purpose": "LOCATION",
            "city": "New Haven",
            "state": "CT",
            "postal_code": "065115991",
            "country_code": "US",
            "telephone_number": "203-688-2800",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BAHTIYAR",
        "first_name": "MERT",
        "middle_name": "OZAN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-11-22",
        "last_updated": "2025-05-08",
        "certification_date": "2025-05-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "CT",
            "license": "040378",
            "primary": false
        },
        {
            "code": "207VM0101X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Maternal & Fetal Medicine",
            "state": "CT",
            "license": "040378",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "001403782",
            "state": "CT"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Donald William Bagnall, ATC
• Burak Bahar, M.D.
• Erkut Bahceci, MD
• Pratik Pramod Bahekar, MBBS
• Farhad F Bahrassa, M.D.
• James Lee Baier, MD, MPH
• Mariam Sajjad Baig, MD
• Annette M. Bailey
• Faith Ann Bailey, LCSW
• India Avery Bailey

• Maternal & Fetal Medicine Physician in New Haven, CT
• Providers in New Haven, CT by specialty
• Maternal & Fetal Medicine Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 8, 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.