NPIMap

Organization Active NPI

Johns Hopkins University

Doing business as Jhu - Daci Allergy Lab

  • Clinical Medical Laboratory
  • Baltimore, MD
National Provider Identifier
1306810619
Registry record updated Mar 18, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Medical LaboratoryTaxonomy code 291U00000X
Legal business name
JOHNS HOPKINS UNIVERSITY
Doing business as
Jhu - Daci Allergy Lab
Practice address
5501 Hopkins Bayview Cir
Room 1A20
Baltimore, MD 21224-6821
Phone
(410) 550-3362
NPI assigned
Feb 14, 2006
Last updated
Mar 18, 2026By the provider in NPPES
Organization subpart
Yes
Parent organization
JOHNS HOPKINS UNIVERSITYAs reported in NPPES

NPPES NPI Registry

Updated by the provider on Mar 18, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name
Nicholas Giarratano
Title
Pes
Phone
(410) 933-0000

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Medical Laboratory 291U00000X MD Primary

Addresses

Primary practice location

5501 Hopkins Bayview Cir
Room 1A20
Baltimore, MD 21224-6821

Mailing address

6201 Greenleigh Avenue
Baltimore, MD 21264-4264
Phone (410) 933-6423

Other practice location 1

600 N Wolfe St
Baltimore, MD 21287-0005
Phone (410) 955-5000

Other identifiers 2

IdentifierTypeStateIssuer
21D0649868OtherMDCLIA#
402888100MedicaidMD

Other names 1

  • JHU - DACI ALLERGY LAB Doing business as

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MD2 enrollments

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
O20031215000719 MD Part B Supplier - Clinic/Group Practice 8921903147 Receives reassigned benefits from 4,764 practitioners
This NPI is an additional NPI on the enrollment
O20040102000156 MD Part B Supplier - Independent Clinical Laboratory 8921903147 Receives reassigned benefits from 1 practitioner
2 other NPIs on this enrollment
This NPI is an additional NPI on the enrollment
Practice locations: Baltimore, MD

Other NPIs on the same Medicare enrollment 2

NPIs listed together on one Medicare enrollment, typically parts of the same organization.

Laboratory certificates & supplier records

Derived by NPIMap

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

CLIA numberLaboratoryCertificateExpires
21D0649868Daci Reference Laboratory5501 Hopkins Bayview CR Room 1A20, Baltimore, MD 21224AccreditationNov 30, 2027

National Provider Directory

National Provider Directory
Tax ID family
Johns Hop Univ Inter Me439 organizations share this tax ID, including this one
Part of
Johns Hop Univ Inter Me

Organizations with this tax ID in the same state 24

This tax ID family is large, so up to 24 of its organizations in the same state are linked here.

View all 24

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1139875200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1773792000000",
    "number": "1306810619",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6201 GREENLEIGH AVENUE",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212644264",
            "telephone_number": "410-933-6423"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5501 HOPKINS BAYVIEW CIR",
            "address_2": "ROOM 1A20",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212246821",
            "telephone_number": "410-550-3362"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "600 N Wolfe St",
            "address_purpose": "LOCATION",
            "city": "Baltimore",
            "state": "MD",
            "postal_code": "212870005",
            "country_code": "US",
            "telephone_number": "410-955-5000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "JOHNS HOPKINS UNIVERSITY",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "JOHNS HOPKINS UNIVERSITY",
        "enumeration_date": "2006-02-14",
        "last_updated": "2026-03-18",
        "certification_date": "2026-03-18",
        "status": "A",
        "authorized_official_last_name": "GIARRATANO",
        "authorized_official_first_name": "NICHOLAS",
        "authorized_official_title_or_position": "PES",
        "authorized_official_telephone_number": "410-933-0000"
    },
    "taxonomies": [
        {
            "code": "291U00000X",
            "taxonomy_group": "",
            "desc": "Clinical Medical Laboratory",
            "state": "MD",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CLIA#",
            "identifier": "21D0649868",
            "state": "MD"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "402888100",
            "state": "MD"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "JHU - DACI ALLERGY LAB",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "JHU - DACI ALLERGY LAB",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Baltimore, MD

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 18, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.