Active NPI
Nsisongikanabasi Mfon Udoh, MD
- Family Medicine Physician
- Hartford, CT
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Medicine Physician
- License
- 76284
- Practice address
- 80 Seymour St BLDG 502
Hartford, CT 06102-8000 - Phone
- (860) 972-0549
- Fax
- (860) 545-5221
- NPI assigned
- Jun 11, 2020
- Sex
- Female
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | 76284 | CT | |
| Student in an Organized Health Care Education/Training Program | 390200000X | |||
| Family Medicine Physician | 207Q00000X | 76284 | CT | Primary |
Addresses
Primary practice location
80 Seymour St BLDG 502
Hartford, CT 06102-8000
Mailing address
6425 S Lowe Ave Apt 513
Chicago, IL 60621-2726
Phone (773) 251-3585
Other practice location 1
7531 S Stony Island Ave
Chicago, IL 60649-3954
Phone (773) 947-7500
Medicare participation
Medicare enrollment files- 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
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Family Practice
- Education
- Other, 2018
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
1952 Whitney Ave
Hamden, CT 06517-1209
Phone (203) 848-1803
80 Seymour St
Hartford, CT 06102-8000
Phone (860) 972-0549
Hospital & facility affiliations
Merit-based Incentive Payment System (MIPS)
- Final score
- 90.42 of 100
- Quality
- 83.36
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 75.9
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Hartford Healthcare Medical Group Specialists, PLLC | Current | Accepting new patients | |
| Margaret Chustecka Internal Medicine of Greater New Haven | Internal Medicine | Current | Accepting new patients |
| Hartford Healthcare Medical Group Specialists LLC | Current | Accepting new patients |
Locations
1952 Whitney Ave
Ste 3
New Haven, CT 06517
Phone (203) 288-0129
1952 Whitney Ave
New Haven, CT 06517
Phone (203) 553-7626
1244 Storrs Rd
Storrs Mansfield, CT 06268
Phone (860) 724-2579
385 Main St
West Haven, CT 06516
Phone (203) 848-6710
Interoperability endpoints
- nsisong.udoh@xdr.hhchealthdirect.org
Organizations & group practices 3
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.
-
- Surgery Physician
- Hartford, CT
- NPI 1023584216
-
- Internal Medicine Physician
- Hamden, CT
- NPI 1053344473
-
- Customized Equipment (DME)
- Groton, CT
- NPI 1295367068
Hospital & facility affiliations 6
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Hartford, CT
- NPI 1770696643
-
- General Acute Care Hospital
- Hartford, CT
- NPI 1902834880
-
- General Acute Care Hospital
- Middletown, CT
- NPI 1760454334
-
- General Acute Care Hospital
- Willimantic, CT
- NPI 1023191467
-
- 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": "1591833600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1784678400000",
"number": "1487279824",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "6425 S LOWE AVE APT 513",
"city": "CHICAGO",
"state": "IL",
"postal_code": "606212726",
"telephone_number": "773-251-3585"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "80 SEYMOUR ST BLDG 502",
"city": "HARTFORD",
"state": "CT",
"postal_code": "061028000",
"telephone_number": "860-972-0549",
"fax_number": "860-545-5221"
}
],
"practiceLocations": [
{
"address_1": "7531 S Stony Island Ave",
"address_purpose": "LOCATION",
"city": "Chicago",
"state": "IL",
"postal_code": "606493954",
"country_code": "US",
"telephone_number": "773-947-7500",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "UDOH",
"first_name": "NSISONGIKANABASI",
"middle_name": "MFON",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2020-06-11",
"last_updated": "2026-07-22",
"certification_date": "2026-07-22",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "CT",
"license": "76284",
"primary": false
},
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": null,
"license": null,
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "CT",
"license": "76284",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Hartford, CT
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 22, 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.