Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Dermatology

Sofia Guelfand Warnken, MD

Sees patients in Aurora, CO · Colorado

Summary

Sofia Guelfand Warnken, MD (Dermatology) is enrolled with Medicare at 1 practice location in Aurora, CO. NPI 1922850411. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Sofia Guelfand Warnken, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

DermatologyPrimary specialty
May acceptAccepts Medicare assignment
5Years since medical school (graduated 2021)
FemaleGender (as listed)

Quick answers

Where does Sofia Guelfand Warnken see patients?
Medicare's clinician data lists 1 practice location in Aurora, CO. Call before your visit to confirm the address.
What is Sofia Guelfand Warnken's specialty?
Medicare lists Dermatology as the primary specialty, and also Pediatric Medicine.
Does Sofia Guelfand Warnken accept Medicare assignment?
Medicare's clinician data says Sofia Guelfand Warnken may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
What is Sofia Guelfand Warnken's NPI number?
1922850411. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Sofia Guelfand Warnken is enrolled with Medicare (CMS data updated 2026-10-02).

  • PO Box, Suite 110429Aurora, CO 80042

Specialties

Find other Dermatology doctors in Colorado →

Other dermatologists in Aurora

Clinicians with the same Medicare primary specialty in Aurora, CO — not a recommendation.

All dermatologists in Aurora →

Clinician information

CredentialMD
Graduation year2021
Gender (as listed)Female
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1922850411
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians