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Orthopedic Surgery

Michael S. Day, MD

Works at hospitals in Gettysburg, PA · Carlisle, PA · York, PA … · Pennsylvania

Summary

Michael S. Day, MD (Orthopedic Surgery) is listed by Medicare at 4 hospitals in Gettysburg, PA, Carlisle, PA and York, PA and other places. NPI 1326339961. 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 Michael S. Day, 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

Orthopedic SurgeryPrimary specialty
YesAccepts Medicare assignment
15Years since medical school (graduated 2011)
Js Weill Medical College, Cornell UniversityMedical school
MaleGender (as listed)
Phoenix Rehabilitation and Health Services IncGroup practice (+1 more)

Quick answers

Which hospitals does Michael S. Day work at?
Medicare's official clinician data lists Michael S. Day at 4 hospitals: Gettysburg Hospital, UPMC Carlisle, UPMC Memorial and UPMC Pinnacle Hospitals. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Michael S. Day see patients?
Medicare's clinician data lists 3 practice locations, including Cranberry Twp, PA, Carlisle, PA and Camp Hill, PA. Call before your visit to confirm the address.
What is Michael S. Day's specialty?
Medicare lists Orthopedic Surgery as the primary specialty, and also Sports Medicine.
Does Michael S. Day accept Medicare assignment?
Yes. Medicare's clinician data says Michael S. Day 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 Michael S. Day?
(717) 761-5530, as listed in official Medicare / NPI Registry data.
What is Michael S. Day's NPI number?
1326339961. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Michael S. Day works

Medicare's Facility Affiliation Data lists Michael S. Day 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 Michael S. Day is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Michael S. Day as a member of these groups (CMS data updated 2026-10-02).

  • Phoenix Rehabilitation and Health Services Inc2,800 clinicians in the group
  • Orthopedic Surgeons Ltd90 clinicians in the group

Specialties

Find other Orthopedic Surgery doctors in Pennsylvania →

Other orthopedic surgeons in Cranberry Twp

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

All orthopedic surgeons in Cranberry Twp →

Clinician information

CredentialMD
Medical schoolJs Weill Medical College, Cornell University
Graduation year2011
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1326339961
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