JOHNS HOPKINS UNIVERSITY
NPI 1598635401
Internal Medicine - Geriatric Medicine in Baltimore, MD

Q: What is Johns Hopkins University's NPI number?

The NPI number for Johns Hopkins University is 1598635401. It was assigned to this organization in the NPPES registry on November 6, 2025. The provider is doing business as Jhu - 5505 Hopkins Bayview Cir - Provider Type: 20-Physician.

Q: What is Johns Hopkins University's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Active since November 06, 2025

5505 HOPKINS BAYVIEW CIR, BALTIMORE, MD 21224(410) 550-2300 Get Directions Write a Review

NPPES record last updated: February 5, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 5, 2026, Nov 6, 2025 (2 updates tracked since 2025).

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About Johns Hopkins University NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHNS HOPKINS UNIVERSITY (NPI 1598635401), doing business as Jhu - 5505 Hopkins Bayview Cir - Provider Type: 20-physician, is a healthcare organization registered as a geriatric medicine in Baltimore, Maryland and active in the NPI registry since November 2025. The organization lists Nicholas Giarratano, Director, Provider Enrollment, as its authorized official.

NPPES Registry Identity

NPI1598635401

Entity TypeOrganization

Primary Taxonomy207RG0300X

Legal Business NameJOHNS HOPKINS UNIVERSITY

Location Address5505 HOPKINS BAYVIEW CIRBaltimore, MD 21224-6821

Mailing Address6201 Greenleigh AveMiddle River, MD 21220-2004 · (410) 955-5000 · Fax (410) 500-4266

Phone(410) 550-2300

Organization SubpartNo

Authorized OfficialNicholas GiarratanoDirector, Provider Enrollment · (410) 933-0000

Enumeration DateNovember 6, 2025

Last NPPES UpdateFebruary 5, 20262 updates tracked since enumeration

NPPES CertifiedFebruary 5, 2026

✔ NPI 1598635401 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RG0300X

Definition

An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.

5505 HOPKINS BAYVIEW CIR, Baltimore, MD 21224

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Other Names 1

Doing Business AsJhu - 5505 Hopkins Bayview Cir - Provider Type: 20-physician

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

COLLEEN CHRISTMAS M.D.

Internal Medicine (Geriatric Medicine)