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Ophthalmology

Carl J. May Jr., MD

Works at hospitals in Hanover, PA · Pennsylvania

Summary

Dr. Carl J. May Jr., MD is an ophthalmologist at 250 Fame Ave, Suite 225, Hanover, PA 17331. Phone: (717) 637-1919. Accepts Medicare assignment. In 2024, Carl J. May Jr. had 778 Original Medicare patients and 2,342 services. NPI 1194726836. 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: 250 Fame Ave, Suite 225, Hanover, PA 17331 · Directions
  • Phone: (717) 637‑1919
  • Medicare: Accepts Medicare assignment
  • Hospital: UPMC Hanover
  • Group practice: May Eye Care PC
  • Medical school: Jefferson Medical College Of Thomas Jefferson University · graduated 1989 (37 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Carl J. May Jr., 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 Carl J. May Jr. accept Medicare assignment?
Yes. Medicare's clinician data says Carl J. May Jr. 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 Carl J. May Jr. see?
In 2024, CMS data shows 778 Original Medicare patients and 2,342 services for Carl J. May Jr.. This counts Original Medicare only and measures volume, not quality.
What is Carl J. May Jr.'s NPI number?
1194726836. 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 Carl J. May Jr., 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 patients778
Services billed to Medicare2,342
Different services or procedures35
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Measurement of corneal curvature and depth of eye (92136)374 services
  2. Established patient complete exam of visual system (92014)371 services
  3. Removal of cataract with insertion of prosthetic lens (66984)337 services
  4. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)238 services
  5. Imaging of optic nerve (92133)152 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%
  • Arthritis49%
  • Diabetes31%
  • Ischemic heart disease27%
  • Chronic kidney disease23%

Hospitals where Carl J. May Jr. works

Medicare's Facility Affiliation Data lists Carl J. May Jr. 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.

  • UPMC HanoverHanover, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390233

Practice locations

Addresses where Carl J. May Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Carl J. May Jr. as a member of this group (CMS data updated October 2, 2026).

  • May Eye Care PC2 clinicians in the group

Specialties

Find other Ophthalmology doctors in Pennsylvania →

Other ophthalmologists in Pennsylvania

Clinicians with the same Medicare primary specialty in Pennsylvania — not a recommendation.

All ophthalmologists in Pennsylvania →

Other clinicians in May Eye Care PC

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

Clinician information

CredentialMD
Medical schoolJefferson Medical College Of Thomas Jefferson University
Graduation year1989 (37 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1194726836
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