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

Internal Medicine

Mladen Perak, MD

Sees patients in Denver, CO · Colorado

Summary

Mladen Perak, MD (Internal Medicine) is enrolled with Medicare at 5 practice locations in Denver, CO. NPI 1114908779. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Mladen Perak, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
30Years since medical school (graduated 1996)
MaleGender (as listed)
Colorado Permanente Medical Group PCGroup practice

Quick answers

Where does Mladen Perak see patients?
Medicare's clinician data lists 5 practice locations, including Denver, CO. Call before your visit to confirm the address.
What is Mladen Perak's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Mladen Perak accept Medicare assignment?
Yes. Medicare's clinician data says Mladen Perak accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Mladen Perak offer telehealth?
Medicare's clinician data says Mladen Perak offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Mladen Perak?
(303) 338-4545, as listed in official Medicare / NPI Registry data.
What is Mladen Perak's NPI number?
1114908779. 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 Mladen Perak is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Mladen Perak as a member of this group (CMS data updated 2026-10-02).

  • Colorado Permanente Medical Group PC1,327 clinicians in the group

Specialties

Find other Internal Medicine doctors in Colorado →

Other internal medicine doctors in Denver

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

All internal medicine doctors in Denver →

Clinician information

CredentialMD
Graduation year1996
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1114908779
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