Active NPI
Karen Hart, M.D.
- Internal Medicine Physician
- Ho Ho Kus, NJ
National Provider Identifier
1679539332
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- MA070920
- Practice address
- 619 N Maple Ave
Ho Ho Kus, NJ 07423-1683 - Phone
- (551) 284-6544
- Fax
- (551) 284-6543
- NPI assigned
- Apr 21, 2006
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | MA070920 | NJ | Primary |
Addresses
Primary practice location
619 N Maple Ave
Ho Ho Kus, NJ 07423-1683
Mailing address
619 N Maple Ave
Ho Ho Kus, NJ 07423-1683
Phone (551) 284-6544
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
- Opted out of Medicare
- Yes, effective Jan 1, 2026 through Jan 1, 2028
Care Compare profile
Medicare Care Compare- Specialty
- Internal Medicine
- Education
- Other, 1992
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
Practice addresses (Care Compare)
301 Godwin Ave
Midland Park, NJ 07432-1500
Hospital & facility affiliations
- Valley Home Care Inc.
- Valley Hospital
- Hackensack University Medical Center
Merit-based Incentive Payment System (MIPS)
- Final score
- 95.05 of 100
- Quality
- 85.71
- Promoting interoperability
- 100
- Improvement activities
- 40
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MA070920 | NJ | MD | Internal Medicine Physician |
Interoperability endpoints
- karen.hart.1@33359.direct.athenahealth.com
Hospital & facility affiliations 4
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Hackensack, NJ
- NPI 1457456279
-
- General Acute Care Hospital
- Paramus, NJ
- NPI 1013912633
-
- Home Health Agency
- Paramus, NJ
- NPI 1174588925
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1145577600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1760313600000",
"number": "1679539332",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "619 N MAPLE AVE",
"city": "HO HO KUS",
"state": "NJ",
"postal_code": "074231683",
"telephone_number": "551-284-6544",
"fax_number": "551-284-6543"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "619 N MAPLE AVE",
"city": "HO HO KUS",
"state": "NJ",
"postal_code": "074231683",
"telephone_number": "551-284-6544",
"fax_number": "551-284-6543"
}
],
"practiceLocations": [],
"basic": {
"last_name": "HART",
"first_name": "KAREN",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2006-04-21",
"last_updated": "2025-10-13",
"certification_date": "2025-10-13",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "NJ",
"license": "MA070920",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Ho Ho Kus, NJ
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 13, 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; Opt Out Affidavits.
- 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.