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

Ophthalmology

John T. Dugan Ii, MD

Sees patients in Corpus Christi, TX · Texas

Summary

Dr. John T. Dugan Ii, MD is an ophthalmologist at 900 Morgan Ave, Corpus Christi, TX 78404. Phone: (361) 888-4288. Accepts Medicare assignment. In 2024, John T. Dugan Ii had 359 Original Medicare patients and 694 services. NPI 1356340574. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Ophthalmologist (Medicare lists Ophthalmology)
  • Address: 900 Morgan Ave, Corpus Christi, TX 78404 · Directions
  • Phone: (361) 888‑4288
  • Medicare: Accepts Medicare assignment
  • Group practice: Jacob J Moore MD PA
  • Medical school: Creighton University School Of Medicine · graduated 1971 (55 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about John T. Dugan Ii, 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 John T. Dugan Ii accept Medicare assignment?
Yes. Medicare's clinician data says John T. Dugan Ii 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 John T. Dugan Ii see?
In 2024, CMS data shows 359 Original Medicare patients and 694 services for John T. Dugan Ii. This counts Original Medicare only and measures volume, not quality.
What is John T. Dugan Ii's NPI number?
1356340574. 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 John T. Dugan Ii, 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 patients359
Services billed to Medicare694
Different services or procedures16
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Established patient complete exam of visual system (92014)329 services
  2. Imaging of retina (92134)187 services
  3. New patient complete exam of visual system (92004)73 services
  4. Removal of recurring cataract in lens capsule using a laser (66821)28 services
  5. Established patient problem focused exam of visual system (92012)21 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 blood pressure75%
  • High cholesterol75%
  • Arthritis52%
  • Diabetes43%
  • Chronic kidney disease33%
  • Ischemic heart disease26%

Practice locations

Addresses where John T. Dugan Ii is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists John T. Dugan Ii as a member of this group (CMS data updated October 2, 2026).

  • Jacob J Moore MD PA6 clinicians in the group

Specialties

Find other Ophthalmology doctors in Texas →

Other ophthalmologists in Corpus Christi

Clinicians with the same Medicare primary specialty in Corpus Christi, TX — not a recommendation.

All ophthalmologists in Corpus Christi →

Other clinicians in Jacob J Moore MD PA

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

Clinician information

CredentialMD
Medical schoolCreighton University School Of Medicine
Graduation year1971 (55 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1356340574
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