TRILLIUM CLINIC
NPI 1093419566
Dermatology in Chapel Hill, NC

Active since March 29, 2023CLIA 34D2286237 · Certificate of Compliance
100 TIMBERHILL PL UNIT 110, CHAPEL HILL, NC 27514(919) 710-8100(919) 747-3999 Get Directions Write a Review

NPPES record last updated: November 19, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Nov 19, 2025, Apr 5, 2023, Mar 29, 2023 (3 updates tracked since 2023).

About Trillium Clinic NPPES

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

TRILLIUM CLINIC (NPI 1093419566) is a healthcare organization registered as a dermatology in Chapel Hill, North Carolina and active in the NPI registry since March 2023. The organization holds a CLIA Certificate of Compliance certificate valid through May 31, 2028, maintains 2 additional practice locations, and lists Stefan Craig Weiss, President, as its authorized official.

NPPES Registry Identity

NPI1093419566
Entity TypeOrganization
Primary Taxonomy207N00000X
Legal Business NameTRILLIUM CLINIC
Location Address100 TIMBERHILL PL UNIT 110Chapel Hill, NC 27514-1962
Mailing AddressPo Box 2288Chapel Hill, NC 27515-2288 · (919) 710-8100 · Fax (919) 747-3999
Fax(919) 747-3999
Organization SubpartNo
Authorized OfficialStefan Craig WeissPresident · (919) 710-8100
Enumeration DateMarch 29, 2023
Last NPPES UpdateNovember 19, 20253 updates tracked since enumeration
NPPES CertifiedNovember 19, 2025
NPI 1093419566 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
Definition

A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

Also ListedDermatology · MOHS-Micrographic SurgeryTaxonomy 207ND0101X
Also ListedDermatology · Procedural DermatologyTaxonomy 207NS0135X
Also ListedPathology · DermatopathologyTaxonomy 207ZD0900X
100 TIMBERHILL PL UNIT 110, Chapel Hill, NC 27514

Secondary Practice Locations 2

Location 12961 Crouse Ln Ste ABurlington, NC 27215-8833 · Phone (919) 710-8100 · Fax (919) 747-3999
Location 2332 N Brightleaf Blvd Ste CSmithfield, NC 27577-4604 · Phone (919) 710-8100 · Fax (919) 747-3999

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

Accepted Insurance

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 34D2286237

Trillium Clinic, PLLC · Chapel Hill, NC
Active · expires May 31, 2028
CLIA Number34D2286237
Laboratory TypePhysician Office
Certificate Effective DateJune 1, 2026
Certificate Expiration DateMay 31, 2028
Laboratory DirectorStefan C. Weiss, MD
Laboratory Phone(919) 710-8100
Laboratory LocationTrillium Clinic, PLLC100 Timberhill Place, #110, Chapel Hill, NC 27514
CLIA data matches this NPI record on: 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.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Dermatology (Procedural Dermatology)
100 TIMBERHILL PL UNIT 110
CHAPEL HILL, NC 27514

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 Trillium Clinic's NPI number?

The NPI number for Trillium Clinic is 1093419566. It was assigned to this organization in the NPPES registry on March 29, 2023.

Where is Trillium Clinic located?

Trillium Clinic is located at 100 Timberhill Pl Unit 110, Chapel Hill, NC 27514. The listed phone number is (919) 710-8100.

What is Trillium Clinic's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Does Trillium Clinic hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 34D2286237) is associated with this NPI, valid through May 31, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Trillium Clinic accept?

Health plans from AmeriHealth Caritas Next list Trillium Clinic as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Trillium Clinic was last updated on November 19, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.