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Ophthalmology

Justin M. Kanoff, MD

Works at hospitals in Boulder, CO · Longmont, CO · Colorado

Summary

Dr. Justin M. Kanoff, MD is an ophthalmologist at 1400 Dry Creek Dr, Longmont, CO 80503. Phone: (303) 772-3300. Accepts Medicare assignment. In 2024, Justin M. Kanoff had 839 Original Medicare patients and 39,532 services. NPI 1326205048. 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: Ophthalmologist (Medicare lists Ophthalmology)
  • Address: 1400 Dry Creek Dr, Longmont, CO 80503 · Directions (1 more location)
  • Phone: (303) 772‑3300
  • Medicare: Accepts Medicare assignment
  • Hospitals: Boulder Community Health, Longmont United Hospital
  • Group practice: Eye Care Center of Northern Colorado, PC
  • Medical school: University Of Texas Southwestern Medical School At Dallas · graduated 2007 (19 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Justin M. Kanoff, 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 Justin M. Kanoff accept Medicare assignment?
Yes. Medicare's clinician data says Justin M. Kanoff 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 Justin M. Kanoff see?
In 2024, CMS data shows 839 Original Medicare patients and 39,532 services for Justin M. Kanoff. This counts Original Medicare only and measures volume, not quality.
What is Justin M. Kanoff's NPI number?
1326205048. 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 Justin M. Kanoff, 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 patients839
Services billed to Medicare39,532
Different services or procedures48
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Injection, faricimab-svoa, 0.1 mg (J2777)30,540 services
  2. Injection, pegcetacoplan, intravitreal, 1 mg (J2781)1,680 services
  3. Photography of the retina (92250)1,556 services
  4. Injection of drug into eye (67028)1,044 services
  5. Established patient complete exam of visual system (92014)894 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 cholesterol69%
  • High blood pressure63%
  • Arthritis41%
  • Ischemic heart disease28%
  • Diabetes25%
  • Chronic kidney disease21%

Hospitals where Justin M. Kanoff works

Medicare's Facility Affiliation Data lists Justin M. Kanoff 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
  • Longmont United HospitalLongmont, CO · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 060003

Practice locations

Addresses where Justin M. Kanoff is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Justin M. Kanoff as a member of this group (CMS data updated October 2, 2026).

  • Eye Care Center of Northern Colorado, PC16 clinicians in the group

Specialties

Find other Ophthalmology doctors in Colorado →

Other ophthalmologists in Longmont

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

All ophthalmologists in Longmont →

Other clinicians in Eye Care Center of Northern Colorado, PC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Southwestern Medical School At Dallas
Graduation year2007 (19 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1326205048
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