Active NPI
Jennifer Grom, MD
- Internal Medicine Physician
- New Haven, CT
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- 80411
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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, CT
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Sleep 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
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
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Baystate Medical Practices, Inc | Internal Medicine | Current | Accepting new patients |
| Yale University | Internal Medicine | Current | Accepting new patients |
| Yale University | Current | Accepting new patients | |
| Hampden County Physician Associates, LLC. | Past | 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
- 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.
-
dba Yale Medicine
- Anesthesiology Physician
- New Haven, CT
- NPI 1205822236
Internal Medicine
-
- Emergency Medical Services (Emergency Medicine) Physician
- Springfield, MA
- NPI 1548205909
Internal Medicine
-
- Durable Medical Equipment & Medical Supplies
- Fairfield, CT
- NPI 1548066962
-
- Sleep Medicine (Internal Medicine) Physician
- Southwick, MA
- NPI 1548567696
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- New Haven, CT
- NPI 1336139500
-
- General Acute Care Hospital
- New Haven, CT
- NPI 1578778726
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 31, 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.