JOHN VAUGHN SIEBEL M.D. NPI 1780741306

NPI Information

  • NPI: 1780741306
  • Provider Name: JOHN VAUGHN SIEBEL, M.D.
  • Classification: Internal Medicine - 207RX0202X
  • Specialization: Medical Oncology
  • Entity Type: Individual
  • PECOS Registration: Yes
  • Address: 218 DE ANZA BLVD
    SAN MATEO, CA
    ZIP 94402
  • Phone: (650) 341-9131

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NPI Details

John Vaughn Siebel, M.D. is a medical oncology internal medicine in San Mateo, CA. 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 Vaughn Siebel, M.D. NPI is 1780741306. The provider is registered as an individual entity type.

The NPPES NPI record indicates the provider is a male.

The provider's business location address is:

218 DE ANZA BLVD
SAN MATEO, CA
ZIP 94402-913
Phone: (650) 341-9131
Fax: (650) 341-9135

The NPI 1780741306 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.

  • Established patient office or other outpatient visit, 20-29 minutes (HCPCS:99213)
  • Established patient office or other outpatient visit, 30-39 minutes (HCPCS:99214)
  • New patient office or other outpatient visit, 45-59 minutes (HCPCS:99204)
  • Established patient office or other outpatient visit, 40-54 minutes (HCPCS:99215)

The enumeration date for this NPI number is 1/2/2007 and was last updated on 11/7/2018.

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
1207RH0003XInternal MedicineHematology & OncologyG26383CALIFORNIANo
2207RX0202XInternal MedicineMedical OncologyM-13451IDAHOYes

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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