Individual provider Active NPI

Jonathan Young Ko, M.D.

  • Anesthesiology Physician
  • Newark, NJ
National Provider Identifier
1801860804
Registry record updated Jul 10, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
25MA07926700 Issued in NJ
Practice address
185 S Orange Ave
Newark, NJ 07103-2757
Phone
(973) 972-5007
NPI assigned
Feb 15, 2006
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 10, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Anesthesiology Physician 207L00000X 25MA07926700 NJ Primary
Anesthesiology Physician 207L00000X 231494-1 NY

Addresses

Primary practice location

185 S Orange Ave
Newark, NJ 07103-2757

Mailing address

PO Box 12023
Newark, NJ 07101-5023
Phone (212) 427-2666

Other identifiers 1

IdentifierTypeStateIssuer
0084221MedicaidNJ

Other names 1

  • Jonathan Ko Professional name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NJ, NY, CT3 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 3

Enrollment IDStateProvider typePAC IDDetails
I20051230000058 NJ Practitioner - Anesthesiology 9436171717 Reassigns benefits to 1 organization
I20061120000356 NY Practitioner - Anesthesiology 9436171717 Reassigns benefits to 4 organizations
I20220111001581 CT Practitioner - Anesthesiology 9436171717 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology
Education
Other, 2001
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Ramapo Anesthesiologists, PCGroup PAC ID 3476444373, 78 clinicians

Practice addresses (Care Compare)

255 Lafayette Ave
Suffern, NY 10901-4812
Phone (845) 357-5775

Hospital & facility affiliations

  • Good Samaritan Hospital of Suffern Hospital, Suffern, NY, CCN 330158

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
25MA07926700NJMDAnesthesiology Physician
231494-1NYMDAnesthesiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Manhattan Endoscopy Center LLC CurrentSince Mar 1, 2019 Accepting new patients
Yorkville Endoscopy, LLC CurrentSince Oct 1, 2016 Accepting new patients
Garden State Healthcare Associates, LLC CurrentSince Oct 15, 2020 Accepting new patients
Ramapo Anesthesiologists, PC Anesthesiology CurrentSince May 1, 2023 Accepting new patients
North American Partners in Anesthesia LLP Anesthesiology CurrentSince Dec 5, 2020 Accepting new patients
North American Partners in Anesthesia Connecticut PC Anesthesiology CurrentSince Dec 6, 2021 Accepting new patients
Upstate Anesthesia Services, P.C. Anesthesiology CurrentSince May 15, 2020 Accepting new patients
New Jersey Healthcare Specialists PC Anesthesiology PastSince May 7, 2023 Accepting new patients
University Nephrology Associates LLP Past Accepting new patients
Office Based Anesthesia LLC Anesthesiology Past Accepting new patients
Suffolk Anesthesiology Associates, PC Anesthesiology Past Accepting new patients
United Anesthesia PC Anesthesiology Past Accepting new patients
Morris Anesthesia Group, PA Past Accepting new patients
Trustees of Columbia University in the City of New York Anesthesiology Past Accepting new patients
Pinnacle Medical Group Anesthesiology Past Accepting new patients

Locations

100 Grand St
New Britain, CT 06052
Phone (860) 224-5011

50 Hospital Hill Rd
Sharon, CT 06069
Phone (860) 364-4000

308 Willow Ave
Hoboken, NJ 07030
Phone (201) 418-1574

176 Palisade Ave
Jersey City, NJ 07306
Phone (201) 795-8200

2201 Hempstead Tpke
East Meadow, NY 11554
Phone (516) 486-6862

10201 66th Rd
Forest Hills, NY 11375
Phone (718) 830-4091

775 Park Ave
Ste 115
Huntington, NY 11743
Phone (631) 659-4150

68 S Service Rd
Ste 350
Melville, NY 11747
Phone (516) 945-3107

1510 Jericho Tpke
New Hyde Park, NY 11040
Phone (516) 216-5341

535 5th Ave
Fl 5
New York, NY 10017
Phone (212) 682-2828

201 E 93rd St
New York, NY 10128
Phone (917) 281-0100

45 Reade Pl
Poughkeepsie, NY 12601
Phone (845) 331-3131

233 Lafayette Ave
Ste LL5
Suffern, NY 10901
Phone (914) 794-7741

255 Lafayette Ave
Suffern, NY 10901
Phone (845) 357-7830

Organizations & group practices 15

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.

View all 15

Hospital & facility affiliations 1

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": "1139961600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783641600000",
    "number": "1801860804",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 12023",
            "city": "NEWARK",
            "state": "NJ",
            "postal_code": "071015023",
            "telephone_number": "212-427-2666",
            "fax_number": "212-289-6929"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "185 S ORANGE AVE",
            "city": "NEWARK",
            "state": "NJ",
            "postal_code": "071032757",
            "telephone_number": "973-972-5007"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KO",
        "first_name": "JONATHAN",
        "middle_name": "YOUNG",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-02-15",
        "last_updated": "2026-07-10",
        "certification_date": "2026-07-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "NJ",
            "license": "25MA07926700",
            "primary": true
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "NY",
            "license": "231494-1",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0084221",
            "state": "NJ"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "JONATHAN",
            "last_name": "KO",
            "credential": "MD",
            "code": "2",
            "type": "Professional Name"
        }
    ]
}

Other providers in Newark, NJ

Sources for this page

Verify at the official NPI Registry.