Hallie N Nelson, MD

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

82469 Issued in CT

Practice address

789 Howard Ave
New Haven, CT 06519-1304

Phone

(877) 925-3637

NPI assigned

May 13, 2019

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 NY, CT2 enrollments

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 2

Specialty

Obstetrics/Gynecology

Education

Pennsylvania State University College of Medicine, 2019

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

100 of 100Reported as group

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine, Master of Science

State licenses

Practice roles

Locations

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.

• Yale University

  • Anesthesiology Physician
  • New Haven, CT
  • NPI 1205822236

  Obstetrics & Gynecology

  Medicare reassignment NPD
• Montefiore Medical Center

  • Anesthesiology Physician
  • Bronx, NY
  • NPI 1063525152

  Obstetrics & Gynecology

  Medicare reassignment NPD
• Yale University

  • Adult Mental Health Clinic/Center
  • Hamden, CT
  • NPI 1134391824
  NPD
• Yale University

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

  • Community/Retail Pharmacy
  • Bronx, NY
  • NPI 1194183715
  NPD
• Montefiore Medical Center

  • General Acute Care Hospital
  • Bronx, NY
  • NPI 1952476988
  NPD (past)

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

{
    "created_epoch": "1557705600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757289600000",
    "number": "1417513722",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "789 HOWARD AVE",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065191304"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "789 HOWARD AVE",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065191304",
            "telephone_number": "877-925-3637"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NELSON",
        "first_name": "HALLIE",
        "middle_name": "N",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-05-13",
        "last_updated": "2025-09-08",
        "certification_date": "2025-09-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "CT",
            "license": "82469",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Alexander Ray Neifert, MD
• Alexander Roman Nelson, MD
• Bethany Nelson, APRN, AGACNP
• Carol A. Nelson, ATC, EMT
• Caroline Anne Nelson, M.D.
• Johnae Amour Nelson
• Lauren Riley Nelson, MD
• Marcella Mary Nelson, MSW INTERN
• Rachel Elizabeth Nelson, MD
• Jennifer Ann Nemec, PHARMD

• Obstetrics & Gynecology Physician in New Haven, CT
• Providers in New Haven, CT by specialty
• Obstetrics & Gynecology Physician in Connecticut

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