GREGORY A MASTERS MD NPI 1508834680

NPI Information

  • NPI: 1508834680
  • Provider Name: GREGORY A MASTERS, MD
  • Classification: Internal Medicine - 207RX0202X
  • Specialization: Medical Oncology
  • Entity Type: Individual
  • PECOS Registration: Yes
  • Address: 4701 OGLETOWN STANTON RD
    SUITE 2200
    NEWARK, DE
    ZIP 19713
  • Phone: (302) 366-1200

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NPI Details

Gregory A Masters, MD is a medical oncology internal medicine in Newark, DE with 36 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. Gregory A Masters, MD NPI is 1508834680. The provider is registered as an individual entity type.

The NPPES NPI record indicates the provider is a male.

Education
Medical School: NORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
Graduation Year:1990

The provider's business location address is:

4701 OGLETOWN STANTON RD
SUITE 2200
NEWARK, DE
ZIP 19713-055
Phone: (302) 366-1200
Fax: (302) 366-1700

The NPI 1508834680 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, pembrolizumab, 1 mg (HCPCS:J9271)
  • Injection, paclitaxel, 1 mg (HCPCS:J9267)
  • Injection, denosumab, 1 mg (HCPCS:J0897)
  • Injection, pemetrexed, not otherwise specified, 10 mg (HCPCS:J9305)
  • Injection, dexamethasone sodium phosphate, 1 mg (HCPCS:J1100)
  • Injection, carboplatin, 50 mg (HCPCS:J9045)
  • Injection, palonosetron hcl, 25 mcg (HCPCS:J2469)
  • Injection, granisetron hydrochloride, 100 mcg (HCPCS:J1626)
  • Administration of chemotherapy into vein, 1 hour or less (HCPCS:96413)
  • Established patient office or other outpatient visit, 30-39 minutes (HCPCS:99214)
  • Injection of additional new drug or substance into vein (HCPCS:96375)
  • Administration of additional new drug or substance into vein, 1 hour or less (HCPCS:96417)
  • Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less (HCPCS:96367)
  • Established patient office or other outpatient visit, 20-29 minutes (HCPCS:99213)
  • Injection, diphenhydramine hcl, up to 50 mg (HCPCS:J1200)
  • Injection, fosnetupitant 235 mg and palonosetron 0.25 mg (HCPCS:J1454)
  • Injection of drug or substance under skin or into muscle (HCPCS:96372)
  • Advance care planning, first 30 minutes (HCPCS:99497)
  • Established patient office or other outpatient visit, 40-54 minutes (HCPCS:99215)
  • Administration of chemotherapy into vein, each additional hour (HCPCS:96415)
  • Injection, magnesium sulfate, per 500 mg (HCPCS:J3475)
  • Administration of additional new drug or substance into vein using push technique (HCPCS:96411)
  • Irrigation of implanted venous access drug delivery device (HCPCS:96523)
  • New patient office or other outpatient visit, 60-74 minutes (HCPCS:99205)
  • Follow-up hospital inpatient care per day, typically 25 minutes (HCPCS:99232)
  • New patient office or other outpatient visit, 60-74 minutes (HCPCS:99205)
  • Collection of blood sample from implanted device (HCPCS:36591)
  • Follow-up hospital inpatient care per day, typically 35 minutes (HCPCS:99233)
  • Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg (HCPCS:J3420)
  • Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle (HCPCS:96401)
  • Infusion, normal saline solution , 1000 cc (HCPCS:J7030)
  • Insertion of needle into vein for collection of blood sample (HCPCS:36415)
  • Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less (HCPCS:96365)
  • Initial hospital inpatient care per day, typically 70 minutes (HCPCS:99223)

The enumeration date for this NPI number is 3/14/2006 and was last updated on 9/27/2007.

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 OncologyC10006866DELAWAREYes

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
1G22923MEDICARE UPIN
21000022975MEDICAIDDELAWARE
3011241M56MEDICARE PINDELAWARE

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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