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Dermatology

Hanna K. Flaten, MD

Works at hospitals in Boulder, CO · Colorado

Summary

Dr. Hanna K. Flaten, MD is a dermatologist at 335 W S Boulder Rd, 3 Ideal Dermatology, Louisville, CO 80027. Phone: (970) 667-3116. Accepts Medicare assignment. In 2024, Hanna K. Flaten had 300 Original Medicare patients and 1,747 services. NPI 1548729791. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Dermatologist (Medicare lists Dermatology)
  • Address: 335 W S Boulder Rd, 3 Ideal Dermatology, Louisville, CO 80027 · Directions (1 more location)
  • Phone: (970) 667‑3116
  • Medicare: Accepts Medicare assignment
  • Hospital: Boulder Community Health
  • Group practice: Skin PC
  • Medical school: University Of Colorado School Of Medicine, Aurora · graduated 2019 (7 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Hanna K. Flaten, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Hanna K. Flaten accept Medicare assignment?
Yes. Medicare's clinician data says Hanna K. Flaten accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Hanna K. Flaten see?
In 2024, CMS data shows 300 Original Medicare patients and 1,747 services for Hanna K. Flaten. This counts Original Medicare only and measures volume, not quality.
What is Hanna K. Flaten's NPI number?
1548729791. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Hanna K. Flaten, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients300
Services billed to Medicare1,747
Different services or procedures60
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Destruction of precancer skin growth, 2-14 growths (17003)425 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)198 services
  3. Therapy procedure using ultraviolet radiation with tar or petroleum jelly application (96910)171 services
  4. Destruction of precancer skin growth, 1 growth (17000)163 services
  5. Biopsy of related skin growth, first growth (11102)124 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol61%
  • Arthritis49%
  • High blood pressure45%
  • Ischemic heart disease27%
  • Osteoporosis22%
  • Depression18%

Hospitals where Hanna K. Flaten works

Medicare's Facility Affiliation Data lists Hanna K. Flaten at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Boulder Community HealthBoulder, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 060027

Practice locations

Addresses where Hanna K. Flaten is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Hanna K. Flaten as a member of this group (CMS data updated October 2, 2026).

  • Skin PC4 clinicians in the group

Specialties

Find other Dermatology doctors in Colorado →

Other dermatologists in Louisville

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

All dermatologists in Louisville →

Other clinicians in Skin PC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of Colorado School Of Medicine, Aurora
Graduation year2019 (7 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1548729791
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians