Individual provider Active NPI

John S Sierocki, M.D.

  • Medical Oncology Physician
  • Princeton, NJ
National Provider Identifier
1487792354
Registry record updated May 16, 2008
On this page

Key facts

NPPES NPI Registry
Primary specialty
Medical Oncology PhysicianTaxonomy code 207RX0202X
License
25MA03428100 Issued in NJ
Practice address
419 N Harrison St
Suite 101
Princeton, NJ 08540-3521
Phone
(609) 924-9300
Fax
(609) 430-9481
NPI assigned
Feb 2, 2007
Last updated
May 16, 2008By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 16, 2008

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Medical Oncology Physician 207RX0202X 25MA03428100 NJ Primary

Addresses

Primary practice location

419 N Harrison St
Suite 101
Princeton, NJ 08540-3521

Mailing address

419 N Harrison St
Princeton, NJ 08540-3521
Phone (609) 924-9300

Other identifiers 10

IdentifierTypeStateIssuer
MES085OtherOXFORD SPECIALTY
110137125OtherRAILROAD MED PRINCETON
2441004MedicaidNJ
2593877OtherUNITED HEALTHCARE
0075927000OtherAMERIHLTH IBC SPECIALTY
066852OtherAMERIHLTH ADMIN SPECIALTY
2193643OtherAETNA HMO NONHMO SPEC
MEP075OtherOXFORD PCP
110137134OtherRAILROAD MED MONROE
877480OtherAETNA HMO NONHMO PCP

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NJ
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 1

Enrollment IDStateProvider typePAC IDDetails
I20100318000541 NJ Practitioner - Medical Oncology 7517977192 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Medical Oncology
Education
Hahnemann University College of Medicine, 1973
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Phoenix Rehabilitation and Health Services IncGroup PAC ID 3476464298, shared by 2 NPIs, 2,775 clinicians
Princeton Medical Group,P.a.Group PAC ID 6406835305, 36 clinicians

Practice addresses (Care Compare)

2000 Westinghouse Dr
Suite 200
Cranberry Township, PA 16066-5238

419 N Harrison St
Princeton, NJ 08540-3594
Phone (609) 924-9300

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Princeton Medical Group,P.a. Medical Oncology CurrentSince Jul 5, 1989 Accepting new patients
Princeton Medical Group, P.a. Past Accepting new patients

Locations

3 Liberty St
Plainsboro, NJ 08536
Phone (609) 924-9300

419 N Harrison St
Princeton, NJ 08540
Phone (609) 921-9437

419 N Harrison St
#4557
Princeton, NJ 08540
Phone (609) 655-8800

419 N Harrison St
Ste 101
Princeton, NJ 08540
Phone (609) 924-9300

Interoperability endpoints

  • FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/
  • Direct secure messaging: john.sierockimd.p1@direct.princetonmedicalgrp.nextgenshare.com

Organizations & group practices 2

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

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": "1170374400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1210896000000",
    "number": "1487792354",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "419 N HARRISON ST",
            "city": "PRINCETON",
            "state": "NJ",
            "postal_code": "085403521",
            "telephone_number": "609-924-9300",
            "fax_number": "609-430-9481"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "419 N HARRISON ST",
            "address_2": "SUITE 101",
            "city": "PRINCETON",
            "state": "NJ",
            "postal_code": "085403521",
            "telephone_number": "609-924-9300",
            "fax_number": "609-430-9481"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIEROCKI",
        "first_name": "JOHN",
        "middle_name": "S",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-02-02",
        "last_updated": "2008-05-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "NJ",
            "license": "25MA03428100",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "OXFORD SPECIALTY",
            "identifier": "MES085",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RAILROAD MED PRINCETON",
            "identifier": "110137125",
            "state": null
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2441004",
            "state": "NJ"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "UNITED HEALTHCARE",
            "identifier": "2593877",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "AMERIHLTH IBC SPECIALTY",
            "identifier": "0075927000",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "AMERIHLTH ADMIN SPECIALTY",
            "identifier": "066852",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "AETNA HMO NONHMO SPEC",
            "identifier": "2193643",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "OXFORD PCP",
            "identifier": "MEP075",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RAILROAD MED MONROE",
            "identifier": "110137134",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "AETNA HMO NONHMO PCP",
            "identifier": "877480",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Princeton, NJ

Sources for this page

Verify at the official NPI Registry.