JOHNS HOPKINS UNIVERSITY
NPI 1306810619
Clinical Medical Laboratory in Baltimore, MD

Active since February 14, 2006
5501 HOPKINS BAYVIEW CIR, ROOM 1A20, BALTIMORE, MD 21224(410) 550-3362 Get Directions Write a Review

NPPES record last updated: March 18, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 18, 2026, Jul 21, 2022, Mar 8, 2021 (3 updates tracked since 2021).

About Johns Hopkins University NPPES

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

JOHNS HOPKINS UNIVERSITY (NPI 1306810619), doing business as Jhu - Daci Allergy Lab, is a healthcare organization registered as a clinical medical laboratory in Baltimore, Maryland and active in the NPI registry since February 2006. The organization maintains a secondary practice location in Baltimore and lists Nicholas Giarratano, Pes, as its authorized official.

NPPES Registry Identity

NPI1306810619
Entity TypeOrganization
Primary Taxonomy291U00000X
Legal Business NameJOHNS HOPKINS UNIVERSITY
Location Address5501 HOPKINS BAYVIEW CIR, ROOM 1A20Baltimore, MD 21224-6821
Mailing Address6201 Greenleigh AvenueBaltimore, MD 21264-4264 · (410) 933-6423
Organization SubpartYes
Authorized OfficialNicholas GiarratanoPes · (410) 933-0000
Enumeration DateFebruary 14, 2006
Last NPPES UpdateMarch 18, 20263 updates tracked since enumeration
NPPES CertifiedMarch 18, 2026
NPI 1306810619 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyClinical Medical LaboratoryLaboratories
Taxonomy Code291U00000X
Definition
(1) A clinical laboratory is a facility for the biological, microbiological, serological, chemical, immunohematological, hematological, biophysical, cytological, pathological, or other examination of materials derived from the human body for the purpose of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, human beings. These examinations also include procedures to determine, measure, or otherwise describe the presence or absence of various substances or organisms in the body. Facilities only collecting or preparing specimens (or both) or only serving as a mailing service and not performing testing are not considered clinical laboratories. (2) Any facility that examines materials from the human body for purposes of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, or the assessment of, the health of human beings. Typical divisions of a clinical laboratory include hematology, cytology, bacteriology, histology, biochemistry, medical toxicology, and serology.
5501 HOPKINS BAYVIEW CIR, Baltimore, MD 21224

Other Names 1

Doing Business AsJhu - Daci Allergy Lab

Secondary Practice Location 1

Location 1600 N Wolfe StBaltimore, MD 21287-0005 · Phone (410) 955-5000

Other Identifiers 2

Medicaid402888100MD
Other21D0649868MD · Clia#

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Measurement of antibody (ige) to allergic substance, crude allergen extract, each 86003
This procedure measures the level of IgE antibodies in your blood that react to a specific allergen. It's done using a crude allergen extract. The test helps determine your sensitivity to certain allergens, aiding in diagnosis and treatment of allergies.
1,322 services54 patients
Ige (immune system protein) level 82785
The IgE level test measures the amount of immunoglobulin E, a type of antibody, in your blood. It's used to help diagnose allergies or asthma. A high IgE level can indicate an allergic reaction or immune system disorder. It's a simple blood test.
25 services25 patients

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.

Specialist/Technologist, Pathology (Immunology)
5501 HOPKINS BAYVIEW CIR, ROOM 1A20, JH ASTHMA ALLERGY CENTER
BALTIMORE, MD 21224
Nurse Practitioner (Adult Health)
5501 HOPKINS BAYVIEW CIR
BALTIMORE, MD 21224
Psychiatry & Neurology (Neurology)
5501 HOPKINS BAYVIEW CIR
BALTIMORE, MD 21224
Psychologist (Clinical)
5501 HOPKINS BAYVIEW CIR, ROOM 4B.74
BALTIMORE, MD 21224
Internal Medicine
5501 HOPKINS BAYVIEW CIR
BALTIMORE, MD 21224
Internal Medicine (Pulmonary Disease)
5501 HOPKINS BAYVIEW CIR, 4TH FLOOR
BALTIMORE, MD 21224
Nurse Practitioner (Family)
5501 HOPKINS BAYVIEW CIR
BALTIMORE, MD 21224
Internal Medicine (Pulmonary Disease)
5501 HOPKINS BAYVIEW CIR, ASTHMA AND ALLERGY BUILDING 4TH FLOOR
BALTIMORE, MD 21224

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 1306810619. It was assigned to this organization in the NPPES registry on February 14, 2006. The provider is doing business as Jhu - Daci Allergy Lab.

Where is Johns Hopkins University located?

Johns Hopkins University is located at 5501 Hopkins Bayview Cir Room 1a20, Baltimore, MD 21224. The listed phone number is (410) 550-3362.

What is Johns Hopkins University's specialty?

The primary specialty registered for this NPI is Clinical Medical Laboratory with taxonomy code 291U00000X.

When was this NPI record last updated?

The NPPES record for Johns Hopkins University was last updated on March 18, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.