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Internal Medicine

Lorrie A. Penfield, MD

Works at hospitals in Elmira, NY · New York

Summary

Lorrie A. Penfield, MD (Internal Medicine) is listed by Medicare at 1 hospital in Elmira, NY. NPI 1477563781. 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 Lorrie A. Penfield, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
42Years since medical school (graduated 1984)
FemaleGender (as listed)
Arnot Ogden Medical CenterGroup practice

Quick answers

Which hospitals does Lorrie A. Penfield work at?
Medicare's official clinician data lists Lorrie A. Penfield at 1 hospital: Arnot Ogden Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Lorrie A. Penfield see patients?
Medicare's clinician data lists 1 practice location in Elmira, NY. Call before your visit to confirm the address.
What is Lorrie A. Penfield's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Emergency Medicine.
Does Lorrie A. Penfield accept Medicare assignment?
Yes. Medicare's clinician data says Lorrie A. Penfield 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 Lorrie A. Penfield?
(607) 734-1581, as listed in official Medicare / NPI Registry data.
What is Lorrie A. Penfield's NPI number?
1477563781. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Lorrie A. Penfield works

Medicare's Facility Affiliation Data lists Lorrie A. Penfield 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 Lorrie A. Penfield is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Lorrie A. Penfield as a member of this group (CMS data updated 2026-10-02).

  • Arnot Ogden Medical Center216 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Elmira

Clinicians with the same Medicare primary specialty in Elmira, NY — not a recommendation.

All internal medicine doctors in Elmira →

Clinician information

CredentialMD
Graduation year1984
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1477563781
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