JOHN S SIEROCKI M.D. NPI 1487792354

NPI Information

  • NPI: 1487792354
  • Provider Name: JOHN S SIEROCKI, M.D.
  • Classification: Internal Medicine - 207RX0202X
  • Specialization: Medical Oncology
  • Entity Type: Individual
  • PECOS Registration: Yes
  • Address: 419 N HARRISON ST
    SUITE 101
    PRINCETON, NJ
    ZIP 08540
  • Phone: (609) 924-9300

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NPI Details

John S Sierocki, M.D. is a medical oncology internal medicine in Princeton, NJ with 53 years of experience. The provider is an internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer. John S Sierocki, M.D. NPI is 1487792354. The provider is registered as an individual entity type.

The NPPES NPI record indicates the provider is a male.

Education
Medical School: HAHNEMANN UNIVERSITY COLLEGE OF MEDICINE
Graduation Year:1973

The provider's business location address is:

419 N HARRISON ST
SUITE 101
PRINCETON, NJ
ZIP 08540-521
Phone: (609) 924-9300
Fax: (609) 430-9481

The NPI 1487792354 is registered in the Medicare Provider, Enrollment, Chain and Ownership System (PECOS). The provider is legally eligible to order and refer Part B (Clinical Laboratory and Imaging), Durable Medical Equipment, Part A Home Health Agency (HHA), Power Mobility Devices.

The following top HCPCS codes were publicly reported for this provider under the Medicare program for the year 2016. The reported codes are based on the top codes for each available Medicare specialty, excluding evaluation and management codes.

  • Injection, darbepoetin alfa, 1 microgram (non-esrd use) (HCPCS:J0881)
  • Injection, ferric carboxymaltose, 1 mg (HCPCS:J1439)
  • Injection, fosaprepitant, 1 mg (HCPCS:J1453)
  • Injection, denosumab, 1 mg (HCPCS:J0897)
  • Injection, dexamethasone sodium phosphate, 1 mg (HCPCS:J1100)
  • Insertion of needle into vein for collection of blood sample (HCPCS:36415)
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (HCPCS:85025)
  • Blood test, comprehensive group of blood chemicals (HCPCS:80053)
  • Lactate dehydrogenase (enzyme) level (HCPCS:83615)
  • Blood test, thyroid stimulating hormone (tsh) (HCPCS:84443)
  • Established patient office or other outpatient visit, 30-39 minutes (HCPCS:99214)
  • Injection of additional new drug or substance into vein (HCPCS:96375)
  • Injection, palonosetron hcl, 25 mcg (HCPCS:J2469)
  • Ferritin (blood protein) level (HCPCS:82728)
  • Injection of drug or substance under skin or into muscle (HCPCS:96372)
  • Established patient office or other outpatient visit, 20-29 minutes (HCPCS:99213)
  • Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg (HCPCS:J3420)
  • Administration of chemotherapy into vein, 1 hour or less (HCPCS:96413)
  • Injection, diphenhydramine hcl, up to 50 mg (HCPCS:J1200)
  • Red blood cell sedimentation rate, to detect inflammation, non-automated (HCPCS:85651)
  • Unclassified drugs (HCPCS:J3490)
  • Psa (prostate specific antigen) measurement, total (HCPCS:84153)
  • Follow-up hospital inpatient care per day, typically 25 minutes (HCPCS:99232)
  • Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less (HCPCS:96367)
  • Infusion, normal saline solution, 250 cc (HCPCS:J7050)
  • Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle (HCPCS:96401)
  • Carcinoembryonic antigen (cea) protein level (HCPCS:82378)
  • Manual urinalysis test with examination using microscope, automated (HCPCS:81001)
  • Blood test, clotting time (HCPCS:85610)
  • Established patient office or other outpatient visit, 40-54 minutes (HCPCS:99215)
  • Automated urinalysis test (HCPCS:81003)
  • Follow-up hospital inpatient care per day, typically 35 minutes (HCPCS:99233)
  • Influenza vaccine split virus, preservative free (HCPCS:90662)
  • Administration of influenza virus vaccine (HCPCS:G0008)
  • Administration of additional new drug or substance into vein, 1 hour or less (HCPCS:96417)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS:93000)
  • Blood test, lipids (cholesterol and triglycerides) (HCPCS:80061)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS:G0439)
  • Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less (HCPCS:96365)
  • Hemoglobin a1c level (HCPCS:83036)
  • New patient office or other outpatient visit, 60-74 minutes (HCPCS:99205)
  • New patient office or other outpatient visit, 45-59 minutes (HCPCS:99204)

The enumeration date for this NPI number is 2/2/2007 and was last updated on 5/16/2008.

Taxonomy Codes

The NPI record includes the healthcare provider taxonomy classification, state license number and state of licensure. The following information regarding the scope of practice of this provider is available:

No. Taxonomy Code Taxonomy Clasification Taxonomy Specialization License Number License State Primary
1207RX0202XInternal MedicineMedical Oncology25MA03428100NEW JERSEYYes

Other Identifiers

The following information regarding additional identifiers associated to this NPI record includes the other identifier number, identifier type, identifier state and issuer.

No. Other Provider Identifier Other Provider Identifier Type Other Provider Identifier State Other Provider Identifier Issuer
1877480OTHERAETNA HMO NONHMO PCP
22593877OTHERUNITED HEALTHCARE
32441004MEDICAIDNEW JERSEY
4MEP075OTHEROXFORD PCP
5066852AP0MEDICARE PINNEW JERSEY
62193643OTHERAETNA HMO NONHMO SPEC
7110137134OTHERRAILROAD MED MONROE
8MES085OTHEROXFORD SPECIALTY
9110137125OTHERRAILROAD MED PRINCETON
10D97037MEDICARE UPIN
110075927000OTHERAMERIHLTH IBC SPECIALTY
12066852OTHERAMERIHLTH ADMIN SPECIALTY

What is NPI?

NPI stands for National Provider Identifier. The NPI is a 10-digit identification number that is completely unique. The NPI number by itself does not contain any identifiable information such as a provider’s speciality or location. The NPI is assigned to individuals or organizacions for their lifespan and it is independent of key provider information type updates like a change of practices, location or speciality.

This page was last updated on: 11/21/2025

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