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Ophthalmology

Clayton W. Pennington, MD

Sees patients in Lone Tree, CO · Lakewood, CO · Denver, CO … · Colorado

Summary

Dr. Clayton W. Pennington, MD is an ophthalmologist at 10101 Ridgegate Pkwy, Lone Tree, CO 80124. Phone: (720) 225-1000. Accepts Medicare assignment. In 2024, Clayton W. Pennington had 653 Original Medicare patients and 1,757 services. NPI 1467867002. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Ophthalmologist (Medicare lists Ophthalmology)
  • Address: 10101 Ridgegate Pkwy, Lone Tree, CO 80124 · Directions (3 more locations)
  • Phone: (720) 225‑1000
  • Medicare: Accepts Medicare assignment
  • Group practice: Trauma and Emergency Subspecialty Surgeons PLLC (+2 more)
  • Medical school: Medical College Of Georgia School Of Medicine · graduated 2014 (12 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Clayton W. Pennington, 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 Clayton W. Pennington accept Medicare assignment?
Yes. Medicare's clinician data says Clayton W. Pennington 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 Clayton W. Pennington see?
In 2024, CMS data shows 653 Original Medicare patients and 1,757 services for Clayton W. Pennington. This counts Original Medicare only and measures volume, not quality.
What is Clayton W. Pennington's NPI number?
1467867002. 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 Clayton W. Pennington, 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 patients653
Services billed to Medicare1,757
Different services or procedures27
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. New patient complete exam of visual system (92004)459 services
  2. Established patient complete exam of visual system (92014)236 services
  3. Measurement of corneal curvature and depth of eye (92136)193 services
  4. Removal of cataract with insertion of prosthetic lens (66984)173 services
  5. Photography of the retina (92250)156 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 cholesterol75%
  • High blood pressure64%
  • Arthritis44%
  • Ischemic heart disease25%
  • Chronic kidney disease22%
  • Diabetes21%

Practice locations

Addresses where Clayton W. Pennington is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Clayton W. Pennington as a member of these groups (CMS data updated October 2, 2026).

  • Trauma and Emergency Subspecialty Surgeons PLLC27 clinicians in the group
  • Colorado Eye Surgeons LLC2 clinicians in the group
  • Wellensiek Eye Care, LLC2 clinicians in the group

Specialties

Find other Ophthalmology doctors in Colorado →

Other ophthalmologists in Lone Tree

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

All ophthalmologists in Lone Tree →

Other clinicians in Trauma and Emergency Subspecialty Surgeons PLLC

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

Clinician information

CredentialMD
Medical schoolMedical College Of Georgia School Of Medicine
Graduation year2014 (12 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1467867002
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 October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians