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Internal Medicine

Diana C. McNulty, MD

Works at hospitals in Freeport, IL · Illinois

Summary

Diana C. McNulty, MD (Internal Medicine) is listed by Medicare at 1 hospital in Freeport, IL. NPI 1215900105. 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 Diana C. McNulty, 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
YesOffers telehealth
35Years since medical school (graduated 1991)
Oregon Health Sciences University School Of MedicineMedical school
FemaleGender (as listed)
Select Rehabilitation, LLCGroup practice (+1 more)

Quick answers

Which hospitals does Diana C. McNulty work at?
Medicare's official clinician data lists Diana C. McNulty at 1 hospital: FHN Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Diana C. McNulty see patients?
Medicare's clinician data lists 3 practice locations, including Freeport, IL, Glenview, IL and Stockton, IL. Call before your visit to confirm the address.
What is Diana C. McNulty's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Diana C. McNulty accept Medicare assignment?
Yes. Medicare's clinician data says Diana C. McNulty 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.
Does Diana C. McNulty offer telehealth?
Medicare's clinician data says Diana C. McNulty offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Diana C. McNulty?
(815) 599-7421, as listed in official Medicare / NPI Registry data.
What is Diana C. McNulty's NPI number?
1215900105. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Diana C. McNulty works

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

Group practices

Medicare enrollment lists Diana C. McNulty as a member of these groups (CMS data updated 2026-10-02).

  • Select Rehabilitation, LLC2,046 clinicians in the group
  • Freeport Regional Health Care Foundation92 clinicians in the group

Specialties

Find other Internal Medicine doctors in Illinois →

Other internal medicine doctors in Freeport

Clinicians with the same Medicare primary specialty in Freeport, IL — not a recommendation.

All internal medicine doctors in Freeport →

Clinician information

CredentialMD
Medical schoolOregon Health Sciences University School Of Medicine
Graduation year1991
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1215900105
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