HAYSTACK ONCOLOGY INC
NPI 1396627618
Clinical Medical Laboratory in Baltimore, MD

Active since July 25, 2025CLIA 21D2278691 · Certificate of Compliance
101 W DICKMAN ST STE 120, BALTIMORE, MD 21230(410) 297-1000 Get Directions Write a Review

NPPES record last updated: July 25, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Haystack Oncology Inc NPPES

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

HAYSTACK ONCOLOGY INC (NPI 1396627618) is a healthcare organization registered as a clinical medical laboratory in Baltimore, Maryland and active in the NPI registry since July 2025. The organization holds a CLIA Certificate of Compliance certificate valid through July 10, 2028 and lists Leah D Timmerman, Sr. Vice President, as its authorized official.

NPPES Registry Identity

NPI1396627618
Entity TypeOrganization
Primary Taxonomy291U00000X
Legal Business NameHAYSTACK ONCOLOGY INC
Location Address101 W DICKMAN ST STE 120Baltimore, MD 21230-5006
Mailing Address14275 Midway Rd Ste 400Addison, TX 75001-3661 · Fax (610) 271-4245
Organization SubpartYesParent: Quest Diagnostics Incorporated
Authorized OfficialLeah D TimmermanSr. Vice President · (973) 520-2700
Enumeration DateJuly 25, 2025
NPPES CertifiedJuly 25, 2025
NPI 1396627618 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.
101 W DICKMAN ST STE 120, Baltimore, MD 21230

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Compliance 21D2278691

Haystack Oncology, Inc · Baltimore, MD
Active · expires Jul 10, 2028
CLIA Number21D2278691
Laboratory TypeIndependent
Certificate Effective DateJuly 11, 2026
Certificate Expiration DateJuly 10, 2028
Laboratory DirectorRajesh R. Singh
Laboratory Phone(410) 297-1000
Laboratory LocationHaystack Oncology, Inc101 West Dickman Street Suite 120, Baltimore, MD 21230
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

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 Haystack Oncology Inc's NPI number?

The NPI number for Haystack Oncology Inc is 1396627618. It was assigned to this organization in the NPPES registry on July 25, 2025.

Where is Haystack Oncology Inc located?

Haystack Oncology Inc is located at 101 W Dickman St Ste 120, Baltimore, MD 21230. The listed phone number is (410) 297-1000.

What is Haystack Oncology Inc's specialty?

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

Does Haystack Oncology Inc hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 21D2278691) is associated with this NPI, valid through July 10, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Haystack Oncology Inc was last updated on July 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.