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Contact Information

MARY D JOHNSTON, MD
600 N WOLFE STREET
JOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
BALTIMORE, MD21287-7279
 Phone: 410-955-5147
 Fax:
 Website:
 

Specialty

Taxonomy Code Specialty Code Provider Type

Geriatric Psychiatry

2084P0805X 86 Physician/Neuropsychiatry
Indicates primary specialty

NPI Profile & details for MARY D JOHNSTON · (Female)

NPI # 1881670958
Status Active
Credentials MD
Entity Individual
Enumeration date 12/20/2005
Last updated 09/18/2012 - About 14 years ago
Sole proprietor 1 No
Identifiers
  • NC License # 9500105
Hospital affiliation(s)
  • JOHNS HOPKINS HOSPITAL THE - (Acute Care)
    600 NORTH WOLFE STREET
    BALTIMORE, MD 21287
1 A sole proprietor/sole proprietorship is an individual, and as such, is eligible for a single NPI number. The sole proprietor must apply for the NPI number using his or her own Social Security Number (SSN), not an Employer Identification Number (EIN) even if he/she has an EIN.

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