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Ophthalmology

Tomas S. Aleman, MD

Works at hospitals in Philadelphia, PA · Pennsylvania

Summary

Tomas S. Aleman, MD (Ophthalmology) is listed by Medicare at 2 hospitals in Philadelphia, PA. NPI 1104110303. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Tomas S. Aleman, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

OphthalmologyPrimary specialty
YesAccepts Medicare assignment
38Years since medical school (graduated 1988)
MaleGender (as listed)
University of Penn - Medical GroupGroup practice

Quick answers

Which hospitals does Tomas S. Aleman work at?
Medicare's official clinician data lists Tomas S. Aleman at 2 hospitals: Hospital of University of Pennsylvania and Penn Presbyterian Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Tomas S. Aleman see patients?
Medicare's clinician data lists 1 practice location in Philadelphia, PA. Call before your visit to confirm the address.
What is Tomas S. Aleman's specialty?
Medicare lists Ophthalmology as the primary specialty.
Does Tomas S. Aleman accept Medicare assignment?
Yes. Medicare's clinician data says Tomas S. Aleman accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Tomas S. Aleman?
(215) 614-4100, as listed in official Medicare / NPI Registry data.
What is Tomas S. Aleman's NPI number?
1104110303. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Tomas S. Aleman works

Medicare's Facility Affiliation Data lists Tomas S. Aleman at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Tomas S. Aleman is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Tomas S. Aleman as a member of this group (CMS data updated 2026-10-02).

  • University of Penn - Medical Group3,505 clinicians in the group

Specialties

Find other Ophthalmology doctors in Pennsylvania →

Other ophthalmologists in Philadelphia

Clinicians with the same Medicare primary specialty in Philadelphia, PA — not a recommendation.

All ophthalmologists in Philadelphia →

Clinician information

CredentialMD
Graduation year1988
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1104110303
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  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