Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Katrina Calderwood, MT

Microbiology Specialist/Technologist in Durham, NC · enumerated 2015.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1538532676

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Registry record

Entity type Individual (Type 1)

Name Katrina Calderwood

Credential MT

Sex Female

Practice address Durham, NC, 27705

Phone (919) 257-8280

Enumeration date Nov 11, 2015

Last updated in NPPES Nov 11, 2015

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

246QM0900X Microbiology Specialist/Technologist Technologists, Technicians & Other Technical Service Providers Primary

Other identifiers

Identifier	Type	State	Issuer
192314	Other	-	AMERICAN SOCIETY OF CLINICAL PATHOLOGISTS

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Katrina Calderwood's NPI record?

Cross-check NPI 1538532676 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1538532676 active?

Yes, as of the latest NPPES snapshot, NPI 1538532676 is active (record last updated 2015-11-11).

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Stuart Manning Internal Medicine Physician · Durham, NC NPI 1043217086 Sol Gazzingan Internal Medicine Physician · Durham, NC NPI 1851389654 Bobbie Brooker Physical Therapist · Durham, NC NPI 1174508402 Kevin White Physician Assistant · Durham, NC NPI 1346226941 David Van Echo Hematology & Oncology Physician · Durham, NC NPI 1356327662 Carrie Thomas Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist · Durham, NC NPI 1144206228 Claudia Nassaralla Internal Medicine Physician · Durham, NC NPI 1114903275 Karen Baker Urology Physician · Durham, NC NPI 1033183314

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-11-11.