Nathaniel Parker

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

69153 Issued in CT

Practice address

20 York St # CB-2041
Yale New Haven Hospital / Northeast Medical Group
New Haven, CT 06510

Phone

(203) 688-4748

NPI assigned

Jun 8, 2018

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 CT

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: No
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Hospitalist

Education

Kansas City University of Med & Biosciences, College of Osteo Med, 2018

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

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

Practice addresses (Care Compare)

Hospital & facility affiliations

• Yale-New Haven Hospital Hospital, New Haven, CT, CCN 070022

Merit-based Incentive Payment System (MIPS)

Final score

100 of 100Reported as apm

Quality

86.54

Promoting interoperability

99.98

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: nparker522979@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
• Northeast Medical Group Inc

  • Radiation Oncology Physician
  • Greenwich, CT
  • NPI 1821390626
  NPD

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

• Yale New Haven Hospital

  • General Acute Care Hospital
  • New Haven, CT
  • NPI 1336139500
  Care Compare affiliation
• Yale New Haven Hospital

  • General Acute Care Hospital
  • New Haven, CT
  • NPI 1578778726
  Care Compare affiliation

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

{
    "created_epoch": "1528416000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777766400000",
    "number": "1124511753",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "20 YORK ST",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065103220",
            "telephone_number": "203-688-4748"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20 YORK ST # CB-2041",
            "address_2": "YALE NEW HAVEN HOSPITAL / NORTHEAST MEDICAL GROUP",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "06510",
            "telephone_number": "203-688-4748"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PARKER",
        "first_name": "NATHANIEL",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-06-08",
        "last_updated": "2026-05-03",
        "certification_date": "2026-05-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "69153",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Vinita Parkash, MD
• Susan Parke, MD
• Alicia Marie Parker, CRNA
• Eleanor Hillyer Parker, MD
• Elizabeth Mary Parker
• Ranisha Parker
• Terri Lynn Parker, M.D.
• Imani L Parks-Williams, LCSW
• Jeremy R Parmley, PA-C
• John Parnoff, D.M.D.

• Internal Medicine Physician in New Haven, CT
• Providers in New Haven, 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 May 3, 2026; 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.