Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Diana Carol McNulty, MD

Individual provider Internal Medicine Physician · NPI 1215900105

Diana Carol McNulty, MD is an Internal Medicine in Freeport, Illinois. Graduated from Oregon Health Sciences University School of Medicine in 1991, 35 years ago. Practices with Freeport Regional Health Care Foundation, a 83-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
35
Trained at
Oregon Health Sciences University School of Medicine
Licensed in
IL
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1010 Fairway Dr
Freeport, IL 61032-6600
Phone: (815) 599-7880
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1045 W Stephenson St, Freeport, IL 61032-4864 — (815) 599-6000

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036103840 (IL)

Record details

NPI number1215900105
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 10, 2006
Last updated in NPPESJuly 31, 2026
Certification dateJuly 31, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOREGON HEALTH SCIENCES UNIVERSITY SCHOOL OF MEDICINE
Graduated 1991 (35 years in practice)
Group practice Freeport Regional Health Care Foundation — 83 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Other providers in Freeport