MARGARET MARY SHOWEL M.D. NPI 1871605352

NPI Information

  • NPI: 1871605352
  • Provider Name: MARGARET MARY SHOWEL, M.D.
  • Classification: Internal Medicine - 207RX0202X
  • Specialization: Medical Oncology
  • Entity Type: Individual
  • Address: 600 N WOLF ST
    BALTIMORE, MD
    ZIP 21264
  • Phone: (410) 955-8964

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NPI Details

Margaret Mary Showel, M.D. is a medical oncology internal medicine in Baltimore, MD. 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. Margaret Mary Showel, M.D. NPI is 1871605352. The provider is registered as an individual entity type.

The NPPES NPI record indicates the provider is a female.

The provider's business location address is:

600 N WOLF ST
BALTIMORE, MD
ZIP 21264-001
Phone: (410) 955-8964

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.

  • Follow-up hospital inpatient care per day, typically 35 minutes (HCPCS:99233)
  • Established patient office or other outpatient visit, 30-39 minutes (HCPCS:99214)
  • Follow-up hospital inpatient care per day, typically 25 minutes (HCPCS:99232)
  • Established patient office or other outpatient visit, 40-54 minutes (HCPCS:99215)
  • Follow-up hospital inpatient care per day, typically 15 minutes (HCPCS:99231)
  • Established patient office or other outpatient visit, 20-29 minutes (HCPCS:99213)
  • Initial hospital inpatient care per day, typically 50 minutes (HCPCS:99222)
  • Initial hospital inpatient care per day, typically 30 minutes (HCPCS:99221)
  • Initial hospital inpatient care per day, typically 70 minutes (HCPCS:99223)

The enumeration date for this NPI number is 8/31/2006 and was last updated on 8/16/2022.

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 OncologyD64375MARYLANDYes
2207R00000XInternal MedicineD64375MARYLANDNo

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
1417497600MEDICAIDMARYLAND

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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