Individual provider Active NPI

Jennifer Grom, MD

  • Internal Medicine Physician
  • New Haven, CT
National Provider Identifier
1780212118
Registry record updated Mar 31, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
80411 Issued in CT
Practice address
20 York St
New Haven, CT 06510-3220
Phone
(203) 737-1947
NPI assigned
Mar 31, 2020
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 31, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 1019112 MA
Pediatrics Physician 208000000X 80411 CT
Pediatrics Physician 208000000X 1019112 MA
Internal Medicine Physician 207R00000X 80411 CT Primary

Addresses

Primary practice location

20 York St
New Haven, CT 06510-3220

Mailing address

20 York St
New Haven, CT 06510-3220

Other practice location 1

8 Devine St
North Haven, CT 06473-2172
Phone (203) 287-3550

Other practice location 2

55 Fruit St
Boston, MA 02114-2621
Phone (617) 726-2000

Other practice location 3

1153 Centre St
Jamaica Plain, MA 02130-3446
Phone (617) 983-7000

Other practice location 4

3400 Main St Ste A
Springfield, MA 01107-1113
Phone (413) 794-9560

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA, 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

Enrollment IDStateProvider typePAC IDDetails
I20240611002791 MA Practitioner - Internal MedicinePractitioner - Pediatric Medicine 0244650489 Reassigns benefits to 1 organization
I20250522003452 CT Practitioner - Sleep MedicinePractitioner - Pediatric Medicine 0244650489 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Sleep MedicineAlso: Pediatric Medicine
Education
Icahn School of Medicine at Mount Sinai, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Yale UniversityGroup PAC ID 9436061736, 2,632 clinicians

Practice addresses (Care Compare)

6 Devine St
North Haven, CT 06473-2195
Phone (203) 287-6100

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Baystate Medical Practices, Inc Internal Medicine CurrentSince Jun 3, 2024 Accepting new patients
Yale University Internal Medicine CurrentSince Jun 1, 2025 Accepting new patients
Yale University CurrentSince Jun 1, 2025 Accepting new patients
Hampden County Physician Associates, LLC. PastSince Jun 3, 2024 Accepting new patients

Locations

800 Howard Ave
New Haven, CT 06519
Phone (203) 785-2140

50 Division St
New Haven, CT 06511
Phone (203) 785-2140

20 York St
North Haven, CT 06510
Phone (203) 688-2433

8 Devine St
North Haven, CT 06473
Phone (203) 230-3400

6 Devine St
North Haven, CT 06473
Phone (203) 230-3940

3400 Main St
Springfield, MA 01107
Phone (413) 794-8777

759 Chestnut St
Springfield, MA 01199
Phone (413) 794-3233

280 Chestnut St
Fl 2
Springfield, MA 01199
Phone (413) 788-4385

759 Chestnut St
Rm S2575
Springfield, MA 01199

3400 Main St
Ste A
Springfield, MA 01107
Phone (413) 794-9560

Interoperability endpoints

  • Direct secure messaging: jgrom724244@direct.ynhh.org

Organizations & group practices 4

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.

Hospital & facility affiliations 2

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

NPI Registry JSON

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

{
    "created_epoch": "1585612800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1743379200000",
    "number": "1780212118",
    "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"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20 YORK ST",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065103220",
            "telephone_number": "203-737-1947"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "8 Devine St",
            "address_purpose": "LOCATION",
            "city": "North Haven",
            "state": "CT",
            "postal_code": "064732172",
            "country_code": "US",
            "telephone_number": "203-287-3550",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "55 Fruit St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021142621",
            "country_code": "US",
            "telephone_number": "617-726-2000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1153 Centre St",
            "address_purpose": "LOCATION",
            "city": "Jamaica Plain",
            "state": "MA",
            "postal_code": "021303446",
            "country_code": "US",
            "telephone_number": "617-983-7000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3400 Main St Ste A",
            "address_purpose": "LOCATION",
            "city": "Springfield",
            "state": "MA",
            "postal_code": "011071113",
            "country_code": "US",
            "telephone_number": "413-794-9560",
            "fax_number": "413-794-5884",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GROM",
        "first_name": "JENNIFER",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-03-31",
        "last_updated": "2025-03-31",
        "certification_date": "2025-03-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "1019112",
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "CT",
            "license": "80411",
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MA",
            "license": "1019112",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "80411",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in New Haven, CT

Sources for this page

Verify at the official NPI Registry.