JOHNS HOPKINS UNIVERSITY
NPI 1972463149
Internal Medicine - Nephrology in Baltimore, MD

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

The NPI number for Johns Hopkins University is 1972463149. It was assigned to this organization in the NPPES registry on November 12, 2025. The provider is doing business as Jhu-301 Mason Lord Dr Ste 3400 - Provider Type: 20-Physician.

Q: What is Johns Hopkins University's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Active since November 12, 2025

301 MASON LORD DR STE 3400, BALTIMORE, MD 21224(410) 550-0526 Get Directions Write a Review

NPPES record last updated: November 12, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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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 1972463149), doing business as Jhu-301 Mason Lord Dr Ste 3400 - Provider Type: 20-physician, is a healthcare organization registered as a nephrology 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

NPI1972463149

Entity TypeOrganization

Primary Taxonomy207RN0300X

Legal Business NameJOHNS HOPKINS UNIVERSITY

Location Address301 MASON LORD DR STE 3400Baltimore, MD 21224-3057

Mailing Address6201 Greenleigh AveMiddle River, MD 21220-2004 · (410) 550-0526 · Fax (410) 500-4266

Phone(410) 550-0526

Organization SubpartNo

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

Enumeration DateNovember 12, 2025

NPPES CertifiedNovember 12, 2025

✔ NPI 1972463149 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

301 MASON LORD DR STE 3400, Baltimore, MD 21224

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Other Names 1

Doing Business AsJhu-301 Mason Lord Dr Ste 3400 - 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

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Johns Hopkins University's NPI number?

The NPI number for Johns Hopkins University is 1972463149. It was assigned to this organization in the NPPES registry on November 12, 2025. The provider is doing business as Jhu-301 Mason Lord Dr Ste 3400 - Provider Type: 20-Physician.

Where is Johns Hopkins University located?

Johns Hopkins University is located at 301 Mason Lord Dr Ste 3400, Baltimore, MD 21224. The listed phone number is (410) 550-0526.

What is Johns Hopkins University's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

When was this NPI record last updated?

The NPPES record for Johns Hopkins University was last updated on November 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.