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

Internal Medicine

Frederick C. Delafield, MD

Works at hospitals in Oklahoma City, OK · Oklahoma

Summary

Frederick C. Delafield, MD (Internal Medicine) is listed by Medicare at 1 hospital in Oklahoma City, OK. NPI 1982708939. 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 Frederick C. Delafield, 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
46Years since medical school (graduated 1980)
University Of South Florida College Of MedicineMedical school
MaleGender (as listed)
Mercy Clinic Oklahoma CommunitiesGroup practice

Quick answers

Which hospitals does Frederick C. Delafield work at?
Medicare's official clinician data lists Frederick C. Delafield at 1 hospital: Mercy Hospital Oklahoma City, Inc. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Frederick C. Delafield see patients?
Medicare's clinician data lists 3 practice locations, including Edmond, OK and Oklahoma City, OK. Call before your visit to confirm the address.
What is Frederick C. Delafield's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Frederick C. Delafield accept Medicare assignment?
Yes. Medicare's clinician data says Frederick C. Delafield 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 Frederick C. Delafield?
(405) 757-3365, as listed in official Medicare / NPI Registry data.
What is Frederick C. Delafield's NPI number?
1982708939. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Frederick C. Delafield works

Medicare's Facility Affiliation Data lists Frederick C. Delafield 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 Frederick C. Delafield is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Frederick C. Delafield as a member of this group (CMS data updated 2026-10-02).

  • Mercy Clinic Oklahoma Communities649 clinicians in the group

Specialties

Find other Internal Medicine doctors in Oklahoma →

Other internal medicine doctors in Edmond

Clinicians with the same Medicare primary specialty in Edmond, OK — not a recommendation.

All internal medicine doctors in Edmond →

Clinician information

CredentialMD
Medical schoolUniversity Of South Florida College Of Medicine
Graduation year1980
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1982708939
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