Kallgren Dermatology

Kallgren Dermatology is a healthcare organization registered as Dermatology Physician in Boulder, CO, holding Type 2 (organization) NPI 1275953689 since 2014. The authorized official on file is Susan Rancis, PA-C.

✓ Active NPI ✓ Valid NPI checksum

NPI	1275953689
Entity type	Organization (Type 2)
Legal business name	Kallgren Dermatology
Practice address	3434 47TH STREET, SUITE 200, Boulder, CO, 80301
Phone	3034448100
Fax	3034448113
Enumeration date	2014-04-24
Last updated in NPPES	2014-04-24

Authorized official

Name	Susan Rancis
Title	PA-C
Phone	3034448100

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
207N00000X	Dermatology Physician	Primary	179	CO

Copy-ready billing details

Provider: Kallgren Dermatology
NPI: 1275953689
Taxonomy: 207N00000X (Dermatology Physician)
Address: 3434 47TH STREET, SUITE 200, Boulder, CO, 80301

Providers at this address

NPI	Name	Type	Specialty	Location
1144213679	Susan Rancis	Individual	Physician Assistant	Boulder, CO
1558406173	Occupational Health Centers of the Southwest P.A.	Organization	Health Service Clinic/Center	Boulder, CO
1386833291	American Current Care PA PC	Organization	Clinic/Center	Boulder, CO

Verify this record

Cross-check NPI 1275953689 against the authoritative CMS record: view Kallgren Dermatology on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-04-24. Verify at npiregistry.cms.hhs.gov.

Where is Kallgren Dermatology located?

The practice location on file with NPPES is in Boulder, CO.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2014-04-24.